WO2016009990A1 - 積層体 - Google Patents
積層体 Download PDFInfo
- Publication number
- WO2016009990A1 WO2016009990A1 PCT/JP2015/070034 JP2015070034W WO2016009990A1 WO 2016009990 A1 WO2016009990 A1 WO 2016009990A1 JP 2015070034 W JP2015070034 W JP 2015070034W WO 2016009990 A1 WO2016009990 A1 WO 2016009990A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluororubber
- acrylic rubber
- layer
- mass
- laminate
- Prior art date
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- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 136
- 229920000800 acrylic rubber Polymers 0.000 claims abstract description 99
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 97
- 239000000203 mixture Substances 0.000 claims abstract description 72
- 238000004132 cross linking Methods 0.000 claims abstract description 67
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical group FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000002253 acid Substances 0.000 claims abstract description 34
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 34
- 229920005862 polyol Polymers 0.000 claims abstract description 20
- 150000003077 polyols Chemical class 0.000 claims abstract description 20
- 150000004714 phosphonium salts Chemical group 0.000 claims abstract description 17
- 125000001309 chloro group Chemical group Cl* 0.000 claims abstract description 9
- ZFVMWEVVKGLCIJ-UHFFFAOYSA-N bisphenol AF Chemical compound C1=CC(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C=C1 ZFVMWEVVKGLCIJ-UHFFFAOYSA-N 0.000 claims description 21
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 13
- 150000001412 amines Chemical class 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- XSQHUYDRSDBCHN-UHFFFAOYSA-N 2,3-dimethyl-2-propan-2-ylbutanenitrile Chemical group CC(C)C(C)(C#N)C(C)C XSQHUYDRSDBCHN-UHFFFAOYSA-N 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000004971 Cross linker Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 121
- 239000011229 interlayer Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 description 38
- 238000000034 method Methods 0.000 description 33
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 25
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 22
- 150000003839 salts Chemical class 0.000 description 20
- 239000000178 monomer Substances 0.000 description 17
- -1 surprisingly Polymers 0.000 description 17
- 239000011737 fluorine Substances 0.000 description 16
- 229910052731 fluorine Inorganic materials 0.000 description 16
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 15
- 238000000465 moulding Methods 0.000 description 13
- 239000000126 substance Substances 0.000 description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 12
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 11
- 239000004115 Sodium Silicate Substances 0.000 description 9
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 9
- 239000000920 calcium hydroxide Substances 0.000 description 9
- 235000011116 calcium hydroxide Nutrition 0.000 description 9
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- 229910052911 sodium silicate Inorganic materials 0.000 description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 239000006229 carbon black Substances 0.000 description 8
- 235000019241 carbon black Nutrition 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 238000004898 kneading Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000005060 rubber Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 6
- 239000004111 Potassium silicate Substances 0.000 description 6
- 229910052783 alkali metal Inorganic materials 0.000 description 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 229910044991 metal oxide Inorganic materials 0.000 description 6
- 150000004706 metal oxides Chemical class 0.000 description 6
- 229910052913 potassium silicate Inorganic materials 0.000 description 6
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 6
- 235000019353 potassium silicate Nutrition 0.000 description 6
- 150000001340 alkali metals Chemical class 0.000 description 5
- 150000001342 alkaline earth metals Chemical class 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 5
- 229910052912 lithium silicate Inorganic materials 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- PVNUIRUAPVSSOK-UHFFFAOYSA-N tert-butylimino(tripyrrolidin-1-yl)-$l^{5}-phosphane Chemical compound C1CCCN1P(N1CCCC1)(=NC(C)(C)C)N1CCCC1 PVNUIRUAPVSSOK-UHFFFAOYSA-N 0.000 description 5
- 235000010724 Wisteria floribunda Nutrition 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 229910000000 metal hydroxide Inorganic materials 0.000 description 4
- 150000004692 metal hydroxides Chemical class 0.000 description 4
- 150000002825 nitriles Chemical class 0.000 description 4
- 150000004010 onium ions Chemical class 0.000 description 4
- YLLIGHVCTUPGEH-UHFFFAOYSA-M potassium;ethanol;hydroxide Chemical compound [OH-].[K+].CCO YLLIGHVCTUPGEH-UHFFFAOYSA-M 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical group CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- 150000001491 aromatic compounds Chemical class 0.000 description 3
- BNQRPLGZFADFGA-UHFFFAOYSA-N benzyl(triphenyl)phosphanium Chemical class C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)CC1=CC=CC=C1 BNQRPLGZFADFGA-UHFFFAOYSA-N 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 3
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229920001897 terpolymer Polymers 0.000 description 3
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 description 2
- BLTXWCKMNMYXEA-UHFFFAOYSA-N 1,1,2-trifluoro-2-(trifluoromethoxy)ethene Chemical compound FC(F)=C(F)OC(F)(F)F BLTXWCKMNMYXEA-UHFFFAOYSA-N 0.000 description 2
- DXKZQNUSKZOLTC-UHFFFAOYSA-N 1,3,5-trichloro-2-[chloro-(2,4,6-trichlorophenoxy)phosphoryl]oxybenzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1OP(Cl)(=O)OC1=C(Cl)C=C(Cl)C=C1Cl DXKZQNUSKZOLTC-UHFFFAOYSA-N 0.000 description 2
- HTVITOHKHWFJKO-UHFFFAOYSA-N Bisphenol B Chemical compound C=1C=C(O)C=CC=1C(C)(CC)C1=CC=C(O)C=C1 HTVITOHKHWFJKO-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 238000003918 potentiometric titration Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 235000019795 sodium metasilicate Nutrition 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 238000001721 transfer moulding Methods 0.000 description 2
- XLAIWHIOIFKLEO-UHFFFAOYSA-N (E)-4-<2-(4-hydroxyphenyl)ethenyl>phenol Natural products C1=CC(O)=CC=C1C=CC1=CC=C(O)C=C1 XLAIWHIOIFKLEO-UHFFFAOYSA-N 0.000 description 1
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 1
- OPNUROKCUBTKLF-UHFFFAOYSA-N 1,2-bis(2-methylphenyl)guanidine Chemical compound CC1=CC=CC=C1N\C(N)=N\C1=CC=CC=C1C OPNUROKCUBTKLF-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- VVFVRTNNLLZXAL-UHFFFAOYSA-N 2-(2-methylphenyl)guanidine Chemical compound CC1=CC=CC=C1N=C(N)N VVFVRTNNLLZXAL-UHFFFAOYSA-N 0.000 description 1
- KEZYHIPQRGTUDU-UHFFFAOYSA-N 2-[dithiocarboxy(methyl)amino]acetic acid Chemical compound SC(=S)N(C)CC(O)=O KEZYHIPQRGTUDU-UHFFFAOYSA-N 0.000 description 1
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 1
- QMIWYOZFFSLIAK-UHFFFAOYSA-N 3,3,3-trifluoro-2-(trifluoromethyl)prop-1-ene Chemical compound FC(F)(F)C(=C)C(F)(F)F QMIWYOZFFSLIAK-UHFFFAOYSA-N 0.000 description 1
- RXNYJUSEXLAVNQ-UHFFFAOYSA-N 4,4'-Dihydroxybenzophenone Chemical compound C1=CC(O)=CC=C1C(=O)C1=CC=C(O)C=C1 RXNYJUSEXLAVNQ-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- YWACAHLWCZJQBK-UHFFFAOYSA-N 4-[1,1-dichloro-1,3,3,3-tetrafluoro-2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound C1=CC(O)=CC=C1C(C(F)(Cl)Cl)(C(F)(F)F)C1=CC=C(O)C=C1 YWACAHLWCZJQBK-UHFFFAOYSA-N 0.000 description 1
- WFCQTAXSWSWIHS-UHFFFAOYSA-N 4-[bis(4-hydroxyphenyl)methyl]phenol Chemical compound C1=CC(O)=CC=C1C(C=1C=CC(O)=CC=1)C1=CC=C(O)C=C1 WFCQTAXSWSWIHS-UHFFFAOYSA-N 0.000 description 1
- JRLTTZUODKEYDH-UHFFFAOYSA-N 8-methylquinoline Chemical group C1=CN=C2C(C)=CC=CC2=C1 JRLTTZUODKEYDH-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- VKOUCJUTMGHNOR-UHFFFAOYSA-N Diphenolic acid Chemical compound C=1C=C(O)C=CC=1C(CCC(O)=O)(C)C1=CC=C(O)C=C1 VKOUCJUTMGHNOR-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000006237 Intermediate SAF Substances 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- KYPYTERUKNKOLP-UHFFFAOYSA-N Tetrachlorobisphenol A Chemical compound C=1C(Cl)=C(O)C(Cl)=CC=1C(C)(C)C1=CC(Cl)=C(O)C(Cl)=C1 KYPYTERUKNKOLP-UHFFFAOYSA-N 0.000 description 1
- NFCXVNJSAQUFJH-UHFFFAOYSA-N [Sn+4].[Sn+4].[Sn+4].[O-]P([O-])[O-].[O-]P([O-])[O-].[O-]P([O-])[O-].[O-]P([O-])[O-] Chemical compound [Sn+4].[Sn+4].[Sn+4].[O-]P([O-])[O-].[O-]P([O-])[O-].[O-]P([O-])[O-].[O-]P([O-])[O-] NFCXVNJSAQUFJH-UHFFFAOYSA-N 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229920006125 amorphous polymer Polymers 0.000 description 1
- JBBHFHMVEOHFRE-UHFFFAOYSA-N anthracene-2,6-diol Chemical compound C1=C(O)C=CC2=CC3=CC(O)=CC=C3C=C21 JBBHFHMVEOHFRE-UHFFFAOYSA-N 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- USFRYJRPHFMVBZ-UHFFFAOYSA-M benzyl(triphenyl)phosphanium;chloride Chemical compound [Cl-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)CC1=CC=CC=C1 USFRYJRPHFMVBZ-UHFFFAOYSA-M 0.000 description 1
- 230000000035 biogenic effect Effects 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- PYSZASIZWHHPHJ-UHFFFAOYSA-L calcium;phthalate Chemical compound [Ca+2].[O-]C(=O)C1=CC=CC=C1C([O-])=O PYSZASIZWHHPHJ-UHFFFAOYSA-L 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000011243 crosslinked material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- FZZQNEVOYIYFPF-UHFFFAOYSA-N naphthalene-1,6-diol Chemical compound OC1=CC=CC2=CC(O)=CC=C21 FZZQNEVOYIYFPF-UHFFFAOYSA-N 0.000 description 1
- ZUVBIBLYOCVYJU-UHFFFAOYSA-N naphthalene-1,7-diol Chemical compound C1=CC=C(O)C2=CC(O)=CC=C21 ZUVBIBLYOCVYJU-UHFFFAOYSA-N 0.000 description 1
- DFQICHCWIIJABH-UHFFFAOYSA-N naphthalene-2,7-diol Chemical compound C1=CC(O)=CC2=CC(O)=CC=C21 DFQICHCWIIJABH-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229960001755 resorcinol Drugs 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- USFPINLPPFWTJW-UHFFFAOYSA-N tetraphenylphosphonium Chemical class C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 USFPINLPPFWTJW-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- XLAIWHIOIFKLEO-OWOJBTEDSA-N trans-stilbene-4,4'-diol Chemical compound C1=CC(O)=CC=C1\C=C\C1=CC=C(O)C=C1 XLAIWHIOIFKLEO-OWOJBTEDSA-N 0.000 description 1
- XWKBMOUUGHARTI-UHFFFAOYSA-N tricalcium;diphosphite Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])[O-].[O-]P([O-])[O-] XWKBMOUUGHARTI-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/248—All polymers belonging to those covered by group B32B25/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/26—Layered products comprising a layer of synthetic resin characterised by the use of special additives using curing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
Definitions
- the present invention relates to a laminate.
- Fluorororubber is widely used in various fields such as the automobile industry, semiconductor industry, chemical industry, etc. because it exhibits excellent chemical resistance, solvent resistance and heat resistance. It is used as hoses, sealing materials, etc. for devices, AT devices, fuel systems and peripheral devices.
- fluororubber exhibits the above-mentioned excellent characteristics, its price is very expensive compared to ordinary rubber materials, and it is a problem in terms of cost to make parts such as hoses only with fluororubber. was there.
- Patent Document 1 discloses that a composition containing an organic phosphonium salt or an organic ammonium salt includes a fluororubber layer, an unsaturated nitrile-conjugated diene copolymer layer, and a hydrogenated unsaturated nitrile-conjugated diene copolymer layer. Or vulcanization adhesion to fluoro rubber layer in unsaturated nitrile-conjugated diene copolymer layer, hydrogenated unsaturated nitrile-conjugated diene copolymer layer or epichlorohydrin rubber layer during the production of laminate with epichlorohydrin rubber layer It is disclosed that it can be advantageously used as a property improver.
- the fluororubber composition for forming the fluororubber layer has a polyol-crosslinkable composition, and the fluororubber has a specific acid value and is also specified. It was found that the fluororubber layer and the acrylic rubber layer adhered firmly only when the crosslinking accelerator was included.
- the present invention is a laminate comprising a fluororubber layer and an acrylic rubber layer, wherein the fluororubber layer comprises a fluororubber containing a polyol-crosslinkable vinylidene fluoride unit, a polyol cross-linking agent, and a cross-linking accelerator.
- the cross-linking accelerator is a quaternary phosphonium salt containing no chlorine atom, and the fluororubber has an acid value of 0.20 KOHmg / g or more. Is the body.
- the crosslinking accelerator is preferably a quaternary phosphonium salt of 2,2-bis (4-hydroxyphenyl) hexafluoropropane.
- the polyol crosslinking agent is preferably 2,2-bis (4-hydroxyphenyl) hexafluoropropane.
- the acrylic rubber layer is preferably made of an acrylic rubber composition containing acrylic rubber and an amine-based crosslinking agent.
- the acrylic rubber preferably has a carboxyl group.
- the amine-based crosslinking agent is preferably hexamethylenediamine carbamate.
- the laminate of the present invention is preferably a turbocharger hose, an intercooler hose, an air duct hose, an air intake hose, an emission control hose, a vacuum hose, or a positive crank ventilation hose.
- the laminate of the present invention has the above configuration, the fluororubber layer and the acrylic rubber layer are firmly bonded, and the layers do not peel even at high temperatures.
- the laminate of the present invention includes a fluororubber layer and an acrylic rubber layer.
- a fluororubber layer and an acrylic rubber layer.
- the fluororubber layer is composed of a fluororubber composition containing a vinylidene fluoride [VdF] unit capable of polyol crosslinking, a polyol crosslinking agent, and a crosslinking accelerator.
- the fluororubber layer is usually obtained by molding and crosslinking the fluororubber composition.
- the fluororubber is a fluororubber containing a polyol-crosslinkable VdF unit.
- the fluororubber usually comprises an amorphous polymer having fluorine atoms bonded to carbon atoms constituting the main chain and having rubber elasticity.
- the fluororubber has an acid value of 0.20 KOHmg / g or more.
- the acid value of the fluororubber is more preferably 0.25 KOHmg / g or more.
- the upper limit of the acid value of the fluororubber is, for example, 2.0 KOHmg / g.
- the acid value is measured according to the potentiometric titration method of JIS K0070, except that a 0.01 mol / L potassium hydroxide ethanol solution is used instead of the 0.1 mol / L potassium hydroxide ethanol solution. .
- the fluororubber is preferably a fluororubber having a fluorine content of 64% by mass or more, and more preferably a fluororubber having a fluorine content of 66% by mass or more.
- the upper limit of the fluorine content is not particularly limited, but is preferably 74% by mass or less. When the fluorine content is less than 64% by mass, chemical resistance, fuel oil resistance and fuel permeability tend to be inferior.
- the fluorine content can be determined by calculation from the polymer composition.
- the fluororubber is preferably a copolymer containing a VdF unit and a copolymer unit derived from another comonomer.
- the content of VdF units is preferably 20 mol% or more, more preferably 45 mol% or more, more preferably 55 mol%, based on the total number of moles of VdF units and polymerization units derived from other comonomers. % Or more is more preferable.
- the content of VdF units is preferably 85 mol% or less, more preferably 80 mol% or less, based on the total number of moles of VdF units and polymerized units derived from other comonomers.
- the fluororubber has a content of polymerized units derived from other comonomer of 15 mol% or more based on the total number of moles of VdF units and polymerized units derived from other comonomer. Preferably, 20 mol% or more is more preferable.
- the content of polymerized units derived from other comonomers is also preferably 80 mol% or less, preferably 55 mol% or less, based on the total number of moles of VdF units and polymerized units derived from other comonomers. More preferred is 45 mol% or less.
- the other comonomer is not particularly limited as long as it is copolymerizable with VdF.
- TFE tetrafluoroethylene
- HFP hexafluoropropylene
- PAVE perfluoro (alkyl vinyl ether)
- chloro Fluorinated monomers such as trifluoroethylene [CTFE], trifluoroethylene, trifluoropropylene, tetrafluoropropylene, pentafluoropropylene, trifluorobutene, tetrafluoroisobutene, hexafluoroisobutene, vinyl fluoride; ethylene [Et]
- Non-fluorine-containing monomers such as propylene [Pr] and alkyl vinyl ethers can be used, and one or more of these monomers and compounds can be used in combination.
- PAVE include perfluoro (methyl vinyl ether) [PMVE], perfluoro (ethyl vinyl ether) [PEVE], perflu
- the fluororubber is preferably a copolymer containing copolymer units derived from VdF units and fluorine-containing monomers (excluding VdF).
- the fluororubber preferably further contains a copolymer unit derived from a monomer copolymerizable with VdF and the fluorine-containing monomer.
- Examples of the fluororubber include VdF / HFP copolymer, VdF / TFE / HFP copolymer, VdF / CTFE copolymer, VdF / CTFE / TFE copolymer, VdF / PFE copolymer, VdF / TFE / PAVE.
- Examples include a copolymer, a VdF / HFP / PAVE copolymer, a VdF / HFP / TFE / PAVE copolymer, a VdF / TFE / Pr copolymer, and a VdF / Et / HFP copolymer.
- the VdF / HFP copolymer and the VdF / TFE / HFP copolymer are advantageous in that the fluororubber layer and the acrylic rubber layer are more firmly bonded, heat resistance, compression set, workability, and cost.
- At least one selected from the group consisting of VdF / PFE copolymer, VdF / TFE / PAVE copolymer, VdF / HFP / PAVE copolymer, and VdF / HFP / TFE / PAVE copolymer is preferable. .
- the VdF / HFP copolymer preferably has a VdF / HFP composition of (45 to 85) / (55 to 15) (mol%), more preferably (50 to 80) / (50 to 20 ) (Mol%), more preferably (60 to 80) / (40 to 20) (mol%).
- the VdF / TFE / HFP copolymer preferably has a composition of VdF / TFE / HFP of (30 to 80) / (4 to 35) / (10 to 35) (mol%), (45 to 80) / (5 to 20) / (15 to 35) (mol%) is more preferable.
- the VdF / PAVE copolymer preferably has a VdF / PAVE composition of (65 to 90) / (35 to 10) (mol%).
- the VdF / TFE / PAVE copolymer preferably has a composition of VdF / TFE / PAVE of (40 to 80) / (3 to 40) / (15 to 35) (mol%).
- the VdF / HFP / PAVE copolymer preferably has a composition of VdF / HFP / PAVE of (65 to 90) / (3 to 25) / (3 to 25) (mol%).
- the composition of VdF / HFP / TFE / PAVE is (40 to 90) / (0 to 25) / (0 to 40) / (3 to 35) (mol) %), More preferably (40 to 80) / (3 to 25) / (3 to 40) / (3 to 25) (mol%).
- the fluororubber is composed of VdF / HFP copolymer and VdF / TFE / HFP. More preferred is at least one selected from the group consisting of copolymers.
- said fluororubber what was demonstrated above is not restricted to 1 type, You may use 2 or more types.
- a polyhydroxy compound is used because the fluororubber layer and the acrylic rubber layer are more firmly bonded, the compression set of the vulcanized fluororubber is small, and the moldability is excellent.
- a polyhydroxy aromatic compound is preferable from the viewpoint of excellent heat resistance.
- the polyhydroxy aromatic compound is not particularly limited.
- 2,2-bis (4-hydroxyphenyl) propane hereinafter referred to as bisphenol A
- 2,2-bis (4-hydroxyphenyl) hexafluoropropane [ Bisphenol AF], resorcin, 1,3-dihydroxybenzene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 4,4′-dihydroxydiphenyl, 4,4′-dihydroxystilbene, 2,6-dihydroxyanthracene, hydroquinone, catechol, 2,2-bis (4-hydroxyphenyl) butane (hereinafter referred to as bisphenol B), 4,4-bis (4-hydroxyphenyl) valeric acid, 2,2-bis (4-Hydroxyphenyl) tetrafluor Dichloropropane, 4,4′-dihydroxydiphenyl sulfone, 4,4′-dihydroxydiphenyl ketone, tri (4-hydroxyphenyl)
- the polyol cross-linking agent is particularly preferably 2,2-bis (4-hydroxyphenyl) hexafluoropropane [bisphenol AF] from the viewpoint that the fluororubber layer and the acrylic rubber layer adhere more firmly.
- the content of the polyol cross-linking agent is 0.2 to 10 parts by mass with respect to 100 parts by mass of the fluororubber because the fluororubber layer and the acrylic rubber layer are more firmly bonded. It is preferably 0.5 to 6 parts by mass, more preferably 1 to 4 parts by mass. Moreover, when the content is less than 0.2 parts by mass, the crosslinking density tends to be low and the compression set tends to be large. If it exceeds 10 parts by mass, the crosslink density becomes too high, so that it tends to break during compression.
- the crosslinking accelerator is a quaternary phosphonium salt containing no chlorine atom. Since the fluorororubber layer is made of a fluororubber composition containing a quaternary phosphonium salt that does not contain chlorine atoms, the fluororubber layer and the acrylic rubber layer are firmly bonded. Further, the layers do not peel even at high temperatures. As such a quaternary phosphonium salt, a quaternary phosphonium salt of 2,2-bis (4-hydroxyphenyl) hexafluoropropane [bisphenol AF] is preferable.
- the quaternary phosphonium salt of bisphenol AF includes tetraphenylphosphonium salt of bisphenol AF, benzyltriphenylphosphonium salt of bisphenol AF, 1- (prop-2-one-yl) -triphenylphosphonium salt of bisphenol AF, bisphenol AF (Ethoxycarbonylmethyl) triphenylphosphonium salt, bisphenol AF allyltriphenylphosphonium salt, bisphenol AF tetramethylphosphonium salt, and bisphenol AF tetraethylphosphonium salt
- the benzyltriphenylphosphonium salt of bisphenol AF is preferable because the adhesion between the fluororubber layer and the acrylic rubber layer is further improved.
- Such a quaternary phosphonium salt can be produced, for example, by the methods described in JP2013-2221024A and JP11-147891A.
- the content of the crosslinking accelerator is preferably such that the quaternary phosphonium ion content is 0.2 to 5 parts by mass with respect to 100 parts by mass of the fluororubber.
- the amount is preferably 0.2 to 3 parts by mass, and particularly preferably 0.3 to 2 parts by mass.
- the polyol crosslinking agent and the crosslinking accelerator may be blended as a solid solution of the polyol crosslinking agent and the crosslinking accelerator.
- a solid solution can be obtained, for example, by the methods described in JP 2013-222104 A and JP 11-147891 A.
- the fluororubber composition may further contain an onium compound (excluding a quaternary phosphonium salt not containing a chlorine atom).
- onium compounds include ammonium compounds such as quaternary ammonium salts, phosphonium compounds such as quaternary phosphonium salts (excluding quaternary phosphonium salts containing no chlorine atom), oxonium compounds, sulfonium compounds, A cyclic amine, a monofunctional amine compound, etc. are mentioned.
- the onium compound is preferably a quaternary ammonium salt.
- Examples of the quaternary ammonium salt include 8-methyl-1,8-diazabicyclo [5.4.0] -7-undecenium chloride, 8-methyl -1,8-diazabicyclo [5.4.0] -7-undecenium iodide, 8-methyl-1,8-diazabicyclo [5.4.0] -7-undecenium hydroxide, 8- Methyl-1,8-diazabicyclo [5.4.0] -7-undecenium methyl sulfate, 8-ethyl-1,8-diazabicyclo [5.4.0] -7-undecenium bromide, 8- Propyl-1,8-diazabicyclo [5.4.0] -7-undecenium bromide, 8-dodecyl-1,8-diazabicyclo [5.4.0] -7-undecenium chlora 8-dodecyl-1,8-diazabicyclo [5.4.0] -7-undecenium
- the content of the onium compound (excluding a quaternary phosphonium salt containing no chlorine atom) is 0.1 to 3.0 parts by mass with respect to 100 parts by mass of the fluororubber. It is preferable.
- the fluororubber composition contains at least one compound selected from the group consisting of metal oxides, metal hydroxides, alkali metal weak acid salts, and alkaline earth metal weak acid salts as acid acceptors. May be.
- the metal oxides, metal hydroxides, alkali metal weak acid salts, and alkaline earth metal weak acid salts include oxides, hydroxides, carbonates, carboxylates, silicas of group (II) metals of the periodic table. Acid salts, borates, phosphites, periodic table group (IV) metal oxides, basic carbonates, basic carboxylates, basic phosphites, basic sulfites and the like. .
- metal oxide, metal hydroxide, alkali metal weak acid salt and alkaline earth metal weak acid salt include magnesium oxide, magnesium hydroxide, barium hydroxide, magnesium carbonate, barium carbonate, calcium oxide. (Quicklime), calcium hydroxide (slaked lime), calcium carbonate, calcium silicate, calcium stearate, zinc stearate, calcium phthalate, calcium phosphite, tin oxide, basic tin phosphite and the like.
- the content of the metal oxide, metal hydroxide, alkali metal weak acid salt, alkaline earth metal weak acid salt is preferably 20 parts by mass or less, more preferably 15 parts by mass with respect to 100 parts by mass of the fluororubber. Or less.
- the fluororubber composition may contain at least one compound selected from the group consisting of metal oxides, alkali metal weak acid salts, and alkaline earth metal weak acid salts. Among them, it is preferable to contain magnesium oxide.
- the fluororubber composition preferably contains an alkali metal silicate from the viewpoint of improving acid resistance and improving the crosslinking rate.
- an alkali metal silicate By the presence of the alkali metal silicate, crosslinking can be carried out in the same amount of time as when conventional calcium hydroxide is blended at the time of polyol crosslinking without blending calcium hydroxide.
- the fluororubber layer is a chemical, solvent (especially acidic solvent), fuel (especially biogenic fuel) It is possible to reduce deterioration and swelling caused by contact with the like, and to expect improvement in compression set.
- alkali metal silicate examples include sodium silicate, potassium silicate, lithium silicate, and hydrated salts thereof.
- the alkali metal silicate is sodium silicate or a hydrate thereof
- the composition of the sodium silicate or the hydrate is represented by a mass ratio (%) converted to Na 2 O, SiO 2 and H 2 O
- Na 2 O is 0.5 to 95% by mass
- SiO 2 is 5 to 99% by mass
- H 2 O is 0 to 94.5% by mass.
- Na 2 O is 1 to 85% by mass
- SiO 2 is 2.0 to 95% by mass
- H 2 O is 0 to 85% by mass.
- Na 2 O is 2 to 70% by mass
- SiO 2 is 7.0 to 70% by mass
- H 2 O is 0 to 75% by mass.
- sodium silicate or its hydrated salt examples include sodium silicate Nos. 1 to 5 (manufactured by Fuji Chemical Co., Ltd.), sodium metasilicate pentahydrate, 9 hydrate (manufactured by Fuji Chemical Co., Ltd.), orthosilicate Soda (65%, 80%) (manufactured by Osaka Shoso Co., Ltd.), powdered sodium silicate 1-3 (manufactured by Nippon Chemical Industry Co., Ltd.), anhydrous sodium metasilicate (manufactured by Osaka Shoso Co., Ltd.), etc. It is available.
- the alkali metal silicate is a hydrated salt of potassium silicate
- the composition of the hydrated potassium silicate is represented by a mass ratio (%) converted to K 2 O, SiO 2 and H 2 O.
- K 2 O is 5 to 30% by mass
- SiO 2 is 15 to 35% by mass
- H 2 O is 35 to 80% by mass.
- potassium silicate As a hydrated salt of potassium silicate, for example, No. 1 potassium silicate, No. 2 potassium silicate (manufactured by Fuji Chemical Co., Ltd.) and the like are available.
- the alkali metal silicate is a hydrated salt of lithium silicate
- the composition of the hydrated salt of lithium silicate is represented by a mass ratio (%) converted to Li 2 O, SiO 2 and H 2 O, It is preferable that Li 2 O is 0.5 to 10% by mass, SiO 2 is 15 to 25% by mass, and H 2 O is 65 to 84.5% by mass.
- lithium silicate 45 manufactured by Nippon Chemical Industry Co., Ltd. is available.
- sodium silicate or a hydrated salt thereof is preferable from the viewpoint of obtaining a stable crosslinking rate and excellent fuel resistance.
- the content of the alkali metal silicate is preferably 0.1 to 10 parts by mass, more preferably 0.2 to 7 parts by mass with respect to 100 parts by mass of the fluororubber.
- the combined use of calcium hydroxide and alkali metal silicate is not necessarily excluded, but the combined use of calcium hydroxide has advantages and effects achieved by the alkali metal silicate. It should be stopped to the extent that it does not affect
- the content of calcium hydroxide should be less than the amount of alkali metal silicate contained in the fluororubber composition, specifically, 3 parts by mass or less with respect to 100 parts by mass of the fluororubber, Furthermore, it should be 1 part by mass or less, and it is particularly preferable not to blend substantially.
- the fluororubber composition preferably contains carbon black from the viewpoint of adhesiveness.
- carbon black include furnace black, acetylene black, thermal black, channel black, graphite and the like.
- SAF-HS N 2 SA: 142 m 2 / g, DBP: 130 ml / 100 g
- SAF N 2 SA: 142 m 2 / g
- DBP 115 ml / 100 g
- N234 N 2 SA: 126 m 2 / g, DBP: 125 ml / 100 g
- ISAF N 2 SA: 119 m 2 / g, DBP: 114 ml / 100 g
- ISAF-LS N 2 SA: 106 m 2 / g, DBP: 75 ml / 100 g
- ISAF-HS N 2 SA: 99 m 2 / g
- DBP 129 ml / 100 g
- N339 N 2 SA: 93 m
- the fluororubber composition preferably has a carbon black content of 0 to 50 parts by mass with respect to 100 parts by mass of the fluororubber. If the amount of carbon black is too large, the hardness of the molded product tends to increase and the flexibility tends to decrease. If the amount is too small, the mechanical properties may decrease. Furthermore, 5 parts by mass or more is more preferable with respect to 100 parts by mass of fluororubber from the viewpoint of good physical property balance, 10 parts by mass or more is further preferable, and 40 parts by mass or less is more preferable from the viewpoint of good physical property balance. Part by mass or less is particularly preferable.
- additives blended in the fluororubber composition for example, filler, processing aid, plasticizer, colorant, stabilizer, adhesion aid, mold release Various additives such as additives, electrical conductivity imparting agents, thermal conductivity imparting agents, surface non-adhesives, flexibility imparting agents, heat resistance improvers, flame retardants, tackifiers, and polyfunctional compounds can be blended.
- One or more conventional crosslinking agents and crosslinking accelerators different from those described above may be blended.
- the fluororubber composition can be obtained by kneading a fluororubber, a polyol cross-linking agent and a cross-linking accelerator, and, if necessary, other additives using a generally used rubber kneading apparatus. It can.
- a rubber kneading apparatus a roll, a kneader, a Banbury mixer, an internal mixer, a twin screw extruder, or the like can be used.
- the acrylic rubber layer is usually composed of an acrylic rubber composition containing an acrylic rubber and a crosslinking agent.
- the acrylic rubber layer is obtained by molding and crosslinking the acrylic rubber composition.
- the acrylic rubber is a (meth) acrylic acid ester monomer [meaning an acrylic acid ester monomer and / or a methacrylic acid ester monomer. ]
- the acrylic rubber preferably has a carboxyl group.
- the acrylic rubber having a carboxyl group is referred to as “carboxyl group-containing acrylic rubber”.
- the carboxyl group-containing acrylic rubber preferably has a monomer unit having a carboxyl group as part of the monomer unit constituting the acrylic rubber, and the monomer unit having the carboxyl group is preferable.
- the monomer unit having the carboxyl group is preferable.
- Examples of a method for introducing a carboxyl group into the acrylic rubber include a method in which a monomer having a carboxyl group is copolymerized with the (meth) acrylic acid ester monomer.
- Examples of commercially available carboxyl group-containing acrylic rubbers include HyTemp AR212HR (manufactured by Zeon Chemicals LP).
- the cross-linking agent may be appropriately selected depending on the type of acrylic rubber, and a cross-linking agent generally used for cross-linking of acrylic rubber can be used.
- the addition amount of the crosslinking agent is preferably 0.05 to 20 parts by mass with respect to 100 parts by mass of the acrylic rubber.
- the addition amount is in the above range, sufficient crosslinking treatment can be performed. If the addition amount of the crosslinking agent is too small, the acrylic rubber composition becomes insufficiently crosslinked, and mechanical properties such as tensile strength and elongation at break of the resulting acrylic rubber layer may be lowered. Moreover, when too large, there exists a possibility that the crosslinked material obtained may harden and lose elasticity.
- the cross-linking agent is preferably an amine-based cross-linking agent because the fluororubber layer and the acrylic rubber layer adhere firmly. That is, the acrylic rubber layer is preferably made of an acrylic rubber composition containing a carboxyl group-containing acrylic rubber and an amine-based crosslinking agent.
- hexamethylenediamine carbamate is preferable.
- the acrylic rubber composition may contain an additive other than the crosslinking agent.
- the additive include a crosslinking accelerator (eg, 1,3-di-o-tolylguanidine), a processing aid (eg, stearic acid), an anti-aging agent (eg, 4,4′-di- ( ⁇ , ⁇ -dimethylbenzyl) diphenylamine, etc.), light stabilizer, plasticizer, reinforcing material, lubricant (eg ester wax), silane coupling agent, adhesive, lubricant, flame retardant, dustproof agent, antistatic Agents, colorants and fillers (for example, carbon black) are preferred.
- a crosslinking accelerator eg, 1,3-di-o-tolylguanidine
- a processing aid eg, stearic acid
- an anti-aging agent eg, 4,4′-di- ( ⁇ , ⁇ -dimethylbenzyl) diphenylamine, etc.
- light stabilizer eg
- the acrylic rubber composition is prepared by kneading acrylic rubber, a crosslinking agent, other additives that are added as necessary.
- the preparation method is not particularly limited, but the components other than the crosslinking agent and the heat-labile crosslinking aid are preferably added to the obtained acrylic rubber composition at 10 to 200 ° C., more preferably 20 to 170. Kneading with a mixer such as a Banbury mixer, Brabender mixer, intermixer, kneader, etc., and transferring to a roll or the like, and adding a crosslinking agent or a heat-labile crosslinking aid, preferably at 10 to 80 ° C. It can be prepared by secondary kneading under conditions.
- the laminate of the present invention has a two-layer structure consisting of a fluororubber layer and an acrylic rubber layer because it has a simple structure and can be provided with low temperature characteristics, chemical resistance and flexibility despite its low cost. Is one of the preferred forms. From the viewpoint of cost reduction and flexibility, a polymer layer (C) different from the acrylic rubber layer and the fluororubber layer is laminated on one side of the fluororubber layer (the side on which the acrylic rubber layer is not laminated). It may be a laminate of three or more layers, and a polymer layer (C) different from the acrylic rubber layer and the fluororubber layer is provided on one side of the acrylic rubber layer (the side on which the fluororubber layer is not laminated).
- the polymer layer (C) is not particularly limited, and may be appropriately determined according to the use of the laminate of the present invention. For example, it is preferably made of acrylonitrile-butadiene rubber or a hydride thereof. In addition, what is necessary is just to select the thickness of each layer, a shape, etc. suitably according to a use purpose, a use form, etc. In addition, for the purpose of improving pressure resistance, a reinforcing layer such as a reinforcing yarn may be provided as appropriate.
- the acrylic rubber layer and the fluororubber layer are crosslinked and bonded.
- the fluororubber layer and the acrylic rubber layer can be bonded extremely firmly.
- the cross-linked laminate can be obtained by crosslinking a non-cross-linked laminate comprising an uncross-linked fluororubber layer and an uncross-linked acrylic rubber layer laminated on the non-cross-linked fluororubber layer. it can.
- cross-linking treatment examples include steam cross-linking, press cross-linking, oven cross-linking, air bus cross-linking, infrared cross-linking, microwave cross-linking, lead cross-linking and the like, and cross-linking treatment by heating is preferable.
- crosslinking by heating the uncrosslinked acrylic rubber layer and the uncrosslinked fluororubber layer can be sufficiently crosslinked, and the fluororubber layer and the acrylic rubber layer of the resulting laminate can be firmly bonded.
- the crosslinking treatment by heating is performed under the condition that at least the acrylic rubber layer and the fluororubber layer are crosslinked.
- the crosslinking treatment by heating is preferably performed at 150 to 190 ° C. for 5 to 120 minutes.
- the crosslinking treatment by heating may be performed by performing secondary crosslinking after performing primary crosslinking.
- secondary crosslinking it is preferable to perform primary crosslinking at 150 to 190 ° C. for 5 to 120 minutes, and then perform secondary crosslinking at 150 to 200 ° C. for 1 to 24 hours.
- the laminate of the present invention is (1) The acrylic rubber composition and the fluororubber composition are molded separately, and the obtained acrylic rubber molded body and the fluororubber molded body are laminated by means such as pressure bonding, so that an uncrosslinked fluororubber layer and an uncrosslinked fluororubber layer are formed.
- a method of obtaining an uncrosslinked laminate in which a crosslinked acrylic rubber layer is laminated, and then performing a crosslinking treatment on the uncrosslinked laminate (2) By simultaneously molding an acrylic rubber composition and a fluororubber composition, an uncrosslinked laminate in which an uncrosslinked fluororubber layer and an uncrosslinked acrylic rubber layer are laminated is obtained.
- a method for carrying out a crosslinking treatment on the body (3) An uncrosslinked structure in which an uncrosslinked fluororubber layer and an uncrosslinked acrylic rubber layer are laminated by molding an acrylic rubber composition and applying the fluororubber composition on the resulting acrylic rubber molded body A method of obtaining a laminate and then carrying out a crosslinking treatment on the uncrosslinked laminate, (4) An uncrosslinked structure in which an uncrosslinked fluororubber layer and an uncrosslinked acrylic rubber layer are laminated by molding a fluororubber composition and applying the acrylic rubber composition on the obtained fluororubber molded article A method of obtaining a laminate and then carrying out a crosslinking treatment on the uncrosslinked laminate, Etc. can be manufactured.
- the methods for molding the acrylic rubber composition include a heat compression molding method, a transfer molding method, an extrusion molding method, an injection molding method, a calendar molding method, and a coating method.
- Examples of a method for molding the fluororubber composition include methods such as heat compression molding, melt extrusion molding, injection molding, and coating (including powder coating).
- fluororubber molding machines such as injection molding machines, blow molding machines, extrusion molding machines, various coating devices, etc. can be used to produce molded bodies of various shapes such as sheets and tubes. Is possible. Of these, the melt extrusion molding method is preferred because of its excellent productivity.
- a method of simultaneously molding and laminating the acrylic rubber composition and the fluororubber composition using the acrylic rubber composition and the fluororubber composition, a multilayer compression molding method, a multilayer transfer molding method, a multilayer extrusion molding method, Examples of the method include molding by a method such as a multilayer injection molding method, a doubling method, and the like, and simultaneously laminating.
- a process for closely adhering a molded product obtained from the acrylic rubber composition and a molded product obtained from the fluororubber composition is not particularly necessary, and it is preferable because strong adhesion can be obtained in the subsequent crosslinking treatment. is there.
- each of the fluororubber composition and the acrylic rubber composition is coextruded in two or more layers by an extruder, or the outer layer is formed on the inner layer by two or two or more extruders.
- an uncrosslinked laminate composed of an inner layer and an outer layer is extruded and integrated by an extruder, and then crosslinked by heating to obtain a crosslinked laminate.
- the laminated body of this invention has the outstanding adhesiveness, it can be utilized suitably as a hose.
- the laminate of the present invention has excellent adhesiveness, particularly excellent adhesiveness at high temperatures, hoses used in the automotive field, particularly turbocharger hoses, intercooler hoses, air duct hoses, air intake hoses, etc. Suitable as an emission control hose, vacuum hose or positive crank ventilation (PCV) hose.
- the conventional turbocharger hose has a problem that peeling occurs in a high temperature atmosphere, but the laminate of the present invention is excellent in adhesiveness at a high temperature, and therefore can be particularly suitably used as a turbocharger hose. .
- Each measured value described in each example and each comparative example is a value obtained by the following method.
- Copolymer composition and fluorine content The polymer composition was measured using 19 F-NMR (manufactured by Bruker, AC300P type). The fluorine content was determined by calculation from the polymer composition measured by 19 F-NMR.
- the measurement was performed according to the potentiometric titration method of JIS K0070, except that a 0.01 mol / L potassium hydroxide ethanol solution was used instead of the potassium hydroxide ethanol solution having an acid value of 0.1 mol / L.
- Peel test peel strength and adhesion ratio
- Test pieces were cut out from the laminates obtained in Examples and Comparative Examples, and a 180 ° peel test was performed using Tensilon RTG-1310 manufactured by A & D Corporation at a peel rate of 50 mm / min.
- the test temperatures were 23 ° C. and 150 ° C. In the case of 150 ° C., a thermostatic bath was used.
- the test piece width was 25.4 mm, and the peel strength was expressed in N / cm.
- the peeled surface was visually observed, and the area ratio at which the peeled surface was rough was defined as “adhesion ratio (%)”.
- an adhesion rate of 100% means that the entire peeled surface is bonded to the counterpart material and does not lead to material destruction, but the peeled surface is rough. If the adhesion further proceeds, the material will be destroyed.
- FKM cut means that the material of the fluororubber layer was destroyed in the peel test.
- the obtained mixture was transferred to a roll at 50 ° C., and 0.5 parts by mass of hexamethylenediamine carbamate (trade name: Diak # 1, manufactured by DuPont Elastomer Co., Ltd.) and 1,3-di-o-
- An acrylic rubber composition was obtained by blending and kneading 2 parts by mass of tolyl guanidine (trade name: Noxeller DT, manufactured by Ouchi Shinsei Chemical Co., Ltd., crosslinking accelerator).
- the obtained acrylic rubber composition was molded using an open roll to obtain an uncrosslinked acrylic rubber sheet having a thickness of about 2.5 mm.
- Examples 1 to 6 and Comparative Examples 1 to 7 A laminate was prepared by the following procedure and evaluated for adhesion.
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Abstract
Description
上記フッ素ゴム層は、ポリオール架橋可能なビニリデンフルオライド〔VdF〕単位を含むフッ素ゴム、ポリオール架橋剤、及び、架橋促進剤を含むフッ素ゴム組成物からなる。上記フッ素ゴム層は、通常、上記フッ素ゴム組成物を成型及び架橋することにより得られる。
上記酸価は、0.1モル/Lの水酸化カリウムエタノール溶液の代わりに、0.01モル/Lの水酸化カリウムエタノール溶液を用いること以外はJIS K0070の電位差滴定法に準拠して測定する。
上記フッ素ゴムは、VdF単位の含有量が、VdF単位とその他の共単量体に由来する重合単位との合計モル数に対し20モル%以上が好ましく、45モル%以上がより好ましく、55モル%以上が更に好ましい。VdF単位の含有量はまた、VdF単位とその他の共単量体に由来する重合単位との合計モル数に対し85モル%以下が好ましく、80モル%以下がより好ましい。
上記PAVEとしては、パーフルオロ(メチルビニルエーテル)〔PMVE〕、パーフルオロ(エチルビニルエーテル)〔PEVE〕、パーフルオロ(プロピルビニルエーテル)〔PPVE〕等が挙げられる。
このなかでも、フッ素ゴム層とアクリルゴム層とがより強固に接着する点、耐熱性、圧縮永久ひずみ、加工性、コストの点から、VdF/HFP共重合体、VdF/TFE/HFP共重合体、VdF/PAVE共重合体、VdF/TFE/PAVE共重合体、VdF/HFP/PAVE共重合体、及び、VdF/HFP/TFE/PAVE共重合体からなる群より選択される少なくとも1種が好ましい。
上記フッ素ゴムとしては、以上説明したものを1種に限らず2種以上用いてもよい。
また、上記含有量が、0.2質量部未満であると、架橋密度が低くなり圧縮永久歪みが大きくなる傾向がある。10質量部を超えると、架橋密度が高くなりすぎるため、圧縮時に割れやすくなる傾向がある。
ビスフェノールAFの第4級ホスホニウム塩としては、ビスフェノールAFのテトラフェニルホスホニウム塩、ビスフェノールAFのベンジルトリフェニルホスホニウム塩、ビスフェノールAFの1-(プロパ-2-オン-イル)-トリフェニルホスホニウム塩、ビスフェノールAFの(エトキシカルボニルメチル)トリフェニルホスホニウム塩、ビスフェノールAFのアリルトリフェニルホスホニウム塩、ビスフェノールAFのテトラメチルホスホニウム塩、及び、ビスフェノールAFのテトラエチルホスホニウム塩からなる群より選択される少なくとも1種であることが好ましく、フッ素ゴム層とアクリルゴム層との接着性がより向上することから、特に、ビスフェノールAFのベンジルトリフェニルホスホニウム塩が好ましい。
このような第4級ホスホニウム塩は、例えば、特開2013-221024号公報、特開平11-147891号公報に記載された方法で製造することができる。
上記範囲の量で架橋促進剤を配合することによって、フッ素ゴム層とアクリルゴム層とをより強固に接着させることができる。
上記オニウム化合物としては第4級アンモニウム塩が好ましく、第4級アンモニウム塩としては、例えば、8-メチル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムクロライド、8-メチル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムアイオダイド、8-メチル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムハイドロキサイド、8-メチル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムメチルスルフェート、8-エチル-1,8―ジアザビシクロ[5.4.0]-7-ウンデセニウムブロミド、8-プロピル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムブロミド、8-ドデシル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムクロライド、8-ドデシル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムハイドロキサイド、8-エイコシル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムクロライド、8-テトラコシル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムクロライド、8-ベンジル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムクロライド(以下、DBU-Bとする)、8-ベンジル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムハイドロキサイド、8-フェネチル-1,8-ジアザビシクロ[5.4.0]-7―ウンデセニウムクロライド、8-(3-フェニルプロピル)-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムクロライドなどが挙げられる。これらの中でも、DBU-Bが好ましい。
上記フッ素ゴム組成物において、上記オニウム化合物(但し、塩素原子を含まない第4級ホスホニウム塩を除く)の含有量は、フッ素ゴム100質量部に対して0.1~3.0質量部であることが好ましい。
上記金属酸化物、金属水酸化物、アルカリ金属の弱酸塩及びアルカリ土類金属の弱酸塩としては、周期表第(II)族金属の酸化物、水酸化物、炭酸塩、カルボン酸塩、ケイ酸塩、ホウ酸塩、亜リン酸塩、周期表第(IV)族金属の酸化物、塩基性炭酸塩、塩基性カルボン酸塩、塩基性亜リン酸塩、塩基性亜硫酸塩等が挙げられる。
上記金属酸化物、金属水酸化物、アルカリ金属の弱酸塩及びアルカリ土類金属の弱酸塩の具体的な例としては、酸化マグネシウム、水酸化マグネシウム、水酸化バリウム、炭酸マグネシウム、炭酸バリウム、酸化カルシウム(生石灰)、水酸化カルシウム(消石灰)、炭酸カルシウム、ケイ酸カルシウム、ステアリン酸カルシウム、ステアリン酸亜鉛、フタル酸カルシウム、亜リン酸カルシウム、酸化錫、塩基性亜リン酸錫等をあげることができる。
上記金属酸化物、金属水酸化物、アルカリ金属の弱酸塩、アルカリ土類金属の弱酸塩の含有量は、フッ素ゴム100質量部に対して、20質量部以下が好ましく、より好ましくは、15質量部以下である。上記含有量の下限は特に限定されず、0質量部であってもよいし、0.1質量部であってもよい。
耐酸性向上の観点から、上記フッ素ゴム組成物は、金属酸化物、アルカリ金属の弱酸塩、及び、アルカリ土類金属の弱酸塩からなる群より選択される少なくとも1種の化合物を含有することが好ましく、中でも、酸化マグネシウムを含有することが好ましい。
上記アクリルゴム層は、通常、アクリルゴム及び架橋剤を含むアクリルゴム組成物からなる。上記アクリルゴム層は、上記アクリルゴム組成物を成型及び架橋することにより得られる。
以下、カルボキシル基を有するアクリルゴムを、「カルボキシル基含有アクリルゴム」という。
アクリルゴムにカルボキシル基を導入する方法としては、カルボキシル基を有する単量体を、上記(メタ)アクリル酸エステル単量体と共重合する方法などが挙げられる。
調製方法は、特に限定されないが、得られるアクリルゴム組成物に、架橋剤および熱に不安定な架橋助剤などを除いた各成分を、好ましくは、10~200℃、より好ましくは20~170℃で、バンバリーミキサー、ブラベンダーミキサー、インターミキサー、ニーダーなどの混合機で混練し、ロールなどに移して架橋剤や熱に不安定な架橋助剤などを加えて、好ましくは10~80℃の条件で、二次混練することにより調製できる。
また、低コスト化、柔軟性付与等の観点からは、フッ素ゴム層の片面(アクリルゴム層が積層されていない面)に、アクリルゴム層及びフッ素ゴム層とは異なるポリマー層(C)が積層されている3層以上の積層体であってもよいし、アクリルゴム層の片面(フッ素ゴム層が積層されていない面)に、アクリルゴム層及びフッ素ゴム層とは異なるポリマー層(C)が積層されている3層以上の積層体であってもよい。
また、フッ素ゴム層の両側にアクリルゴム層が積層されている3層以上の積層体であってもよいし、アクリルゴム層の両側にフッ素ゴム層が積層されている3層以上の積層体であってもよい。
上記ポリマー層(C)としては特に限定されず、本発明の積層体の用途等に応じて適宜決定すればよく、例えば、アクリロニトリル-ブタジエンゴム又はその水素化物からなることが好ましい。
なお、各層の厚さ、形状等は、使用目的、使用形態等によって適宜選定すればよい。
また、耐圧向上の目的で、補強糸等の補強層を適宜設けてもよい。
上記架橋接着された積層体は、未架橋のフッ素ゴム層と、未架橋のフッ素ゴム層上に積層された未架橋のアクリルゴム層とを備える未架橋積層体を架橋処理することによって得ることができる。
上記加熱による架橋処理は、150~190℃で、5分~120分行うことが好ましい。
(1)アクリルゴム組成物とフッ素ゴム組成物を別々に成形し、得られたアクリルゴム成形体とフッ素ゴム成形体とを圧着等の手段で積層することにより、未架橋のフッ素ゴム層と未架橋のアクリルゴム層とが積層された未架橋積層体を得て、その後、未架橋積層体に架橋処理を実施する方法、
(2)アクリルゴム組成物とフッ素ゴム組成物を同時に成形することにより、未架橋のフッ素ゴム層と未架橋のアクリルゴム層とが積層された未架橋積層体を得て、その後、未架橋積層体に架橋処理を実施する方法、
(3)アクリルゴム組成物を成型し、得られたアクリルゴム成形体上にフッ素ゴム組成物を塗布することにより、未架橋のフッ素ゴム層と未架橋のアクリルゴム層とが積層された未架橋積層体を得て、その後未架橋積層体に架橋処理を実施する方法、
(4)フッ素ゴム組成物を成型し、得られたフッ素ゴム成形体上にアクリルゴム組成物を塗布することにより、未架橋のフッ素ゴム層と未架橋のアクリルゴム層とが積層された未架橋積層体を得て、その後未架橋積層体に架橋処理を実施する方法、
等により製造することができる。
また、フッ素ゴム組成物を成型する方法としては、加熱圧縮成形、溶融押出成形、射出成形、塗装(粉体塗装を含む)等の方法が挙げられる。成形には通常用いられるフッ素ゴムの成形機、たとえば射出成形機、ブロー成形機、押出成形機、各種塗装装置等が使用でき、シート状、チューブ状等、各種形状の成形体を製造することが可能である。これらのうち、生産性が優れている点から、溶融押出成形法が好ましい。
より具体的には、フッ素ゴム組成物とアクリルゴム組成物のそれぞれを押出機により2層又は2層以上で同時押出し、若しくは、2基又は2基以上の押出機により内側層上に外側層を押出しすることにより内側層と外側層からなる未架橋の積層体を押出機により押出して一体化し、ついで加熱することにより架橋接着させて架橋された積層体を得ることができる。
また、従来のターボチャージャーホースには、高温雰囲気下で剥離が起こるという課題があったが、本発明の積層体は、高温での接着性に優れることから、ターボチャージャーホースとして特に好適に利用できる。
19F-NMR(Bruker社製、AC300P型)を用いてポリマー組成を測定した。フッ素含有率は、19F-NMRにて測定されたポリマー組成から計算によって求めた。
0.1モル/Lの水酸化カリウムエタノール溶液の代わりに、0.01モル/Lの水酸化カリウムエタノール溶液を用いたこと以外はJIS K0070の電位差滴定法に準拠して測定した。
実施例及び比較例で得られた積層体から試験片を切り出し、エーアンドディー社製テンシロンRTG-1310を用いて、剥離速度50mm/minで180°剥離試験を行った。試験温度は23℃及び150℃であり、150℃の場合は恒温槽を用いた。試験片幅は、25.4mmであり、剥離強度は、N/cmで示した。
剥離面を目視して、剥離面がざらついている面積割合を「接着割合(%)」とした。
例えば接着割合100%とは、剥離面全面が相手材と接着し、材料破壊までには至らないが、剥離面がざらついている状態を意味する。さらに接着が進むと、材料破壊状態に至ることになる。なお、表3中、「FKM切れ」とは、上記剥離試験にて、フッ素ゴム層が材料破壊したことを意味する。
FKM-A〔VdF/HFP/TFE3元共重合体、VdF/HFP/TFE=77/17/6(モル%)、フッ素含有率66質量%、酸価0.26KOHmg/g、ポリオール架橋系〕
FKM-B〔VdF/HFP2元共重合体、VdF/HFP=78/22(モル%)、フッ素含有率66質量%、酸価0.31KOHmg/g、ポリオール架橋系〕
FKM-C〔VdF/HFP/TFE3元共重合体、VdF/HFP/TFE=58/22/20(モル%)、フッ素含有率69質量%、酸価0.56KOHmg/g、ポリオール架橋系〕
FKM-D〔VdF/HFP/TFE3元共重合体、VdF/HFP/TFE=50/30/20(モル%)、フッ素含有率70.5質量%、酸価0.76KOHmg/g、ポリオール架橋系〕
FKM-E〔VdF/HFP2元共重合体、VdF/HFP=78/22(モル%)、フッ素含有率66質量%、酸価0.08KOHmg/g、ポリオール架橋系〕
FKM-F〔VdF/HFP2元共重合体、VdF/HFP=78/22(モル%)、フッ素含有率66質量%、酸価0.19KOHmg/g、ポリオール架橋系〕
ビスフェノールAF〔商品名:BIS-AF、セントラル硝子(株)製〕
DBU-B〔8-ベンジル-1,8-ジアザビシクロ[5.4.0]-7-ウンデセニウムクロライド、和光純薬(株)製〕
BTPPC〔ベンジルトリフェニルホスホニウムクロライド、商品名:BTPPC、東京化成工業(株)製〕
BTPP+〔ベンジルトリフェニルホスホニウムイオン〕
ビスフェノールAFのBTPP塩〔ビスフェノールAFのベンジルトリフェニルホスホニウム塩〕
N990〔サーマルカーボンブラック、商品名:MT-カーボン、Cancarb社製〕
Ca(OH)2〔水酸化カルシウム、商品名:NICC5000、井上石灰工業社製〕
MgO〔酸化マグネシウム、商品名:MA150、協和化学工業(株)製〕
メタケイ酸Na/9水和物〔商品名:メタケイ酸ソーダ9水塩(富士化学(株)社製〕
下記表1又は2に示す材料を、30℃に温調した8インチオープンロールを用いて15分間混練してフッ素ゴム組成物を得た。得られたフッ素ゴム組成物を、ロールからシート出しすることにより、約2.5mm厚みの未架橋フッ素ゴムシートを得た。
なお、架橋促進剤(ビスフェノールAFのBTPP塩)は、ビスフェノールAFとBTPP+の固溶体の形態で配合した。ビスフェノールAFとBTPP+の固溶体は、特開2013-221024号公報又は特開平11-147891号公報に記載された方法で製造することができる。
アクリルゴム(商品名:HyTemp AR212HR、Zeon Chemicals L.P.社製)100質量部、MAFカーボンブラック(商品名「シースト116」、東海カーボン社製、充填剤)60質量部、ステアリン酸2質量部、エステル系ワックス(商品名「グレッグG-8205」、DIC株式会社製、滑剤)1質量部、4,4’-ジ-(α,α-ジメチルベンジル)ジフェニルアミン(商品名:ノクラックCD、大内新興化学工業社製、老化防止剤)2質量部を添加して、50℃で5分間混合した。次いで、得られた混合物を50℃のロールに移して、ヘキサメチレンジアミンカーバメート(商品名:Diak#1、デュポンエラストマー社製、架橋剤)0.5質量部、および1,3-ジ-o-トリルグアニジン(商品名:ノクセラーDT、大内新興化学工業社製、架橋促進剤)2質量部を配合して、混練することにより、アクリルゴム組成物を得た。
得られたアクリルゴム組成物を、オープンロールを用いて成形して、約2.5mm厚みの未架橋アクリルゴムシートを得た。
以下の手順で積層体を作製し、接着性評価を行った。
未架橋フッ素ゴムシートと未架橋アクリルゴムシートとを重ねてプレス加硫成型して一次架橋を行い、その後、熱オーブンを用いて、二次架橋を行って、フッ素ゴム層とアクリルゴム層とが架橋接着された積層体を作製した。一次架橋及び二次架橋の条件は表3及び4に示す通りである。得られた積層体を用いて、接着試験を行った。
Claims (7)
- フッ素ゴム層とアクリルゴム層とを含む積層体であって、
前記フッ素ゴム層は、ポリオール架橋可能なビニリデンフルオライド単位を含むフッ素ゴム、ポリオール架橋剤、及び、架橋促進剤を含むフッ素ゴム組成物からなり、
前記架橋促進剤は、塩素原子を含まない第4級ホスホニウム塩であり、
前記フッ素ゴムは、酸価が0.20KOHmg/g以上である
ことを特徴とする積層体。 - 架橋促進剤は、2,2-ビス(4-ヒドロキシフェニル)ヘキサフルオロプロパンの第4級ホスホニウム塩である請求項1記載の積層体。
- ポリオール架橋剤は、2,2-ビス(4-ヒドロキシフェニル)ヘキサフルオロプロパンである請求項1又は2記載の積層体。
- アクリルゴム層は、アクリルゴム及びアミン系架橋剤を含むアクリルゴム組成物からなる請求項1、2又は3記載の積層体。
- アクリルゴムは、カルボキシル基を有する請求項4記載の積層体。
- アミン系架橋剤は、ヘキサメチレンジアミンカーバメートである請求項4又は5記載の積層体。
- ターボチャージャーホース、インタークーラーホース、エアーダクトホース、エアーインテークホース、エミッションコントロールホース、バキュームホース又はポジティブクランクベンチレーションホースである請求項1、2、3、4、5又は6記載の積層体。
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KR101954544B1 (ko) | 2019-03-05 |
EP3165360A1 (en) | 2017-05-10 |
PL3165360T3 (pl) | 2019-10-31 |
KR20170033347A (ko) | 2017-03-24 |
EP3165360B1 (en) | 2019-05-08 |
JP6212641B2 (ja) | 2017-10-11 |
JPWO2016009990A1 (ja) | 2017-04-27 |
ES2745263T3 (es) | 2020-02-28 |
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