CN105017483A - Preparation method of emulsion polymerized butadiene styrene rubber special-purpose emulsifier - Google Patents
Preparation method of emulsion polymerized butadiene styrene rubber special-purpose emulsifier Download PDFInfo
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- CN105017483A CN105017483A CN201510354261.8A CN201510354261A CN105017483A CN 105017483 A CN105017483 A CN 105017483A CN 201510354261 A CN201510354261 A CN 201510354261A CN 105017483 A CN105017483 A CN 105017483A
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- emulsion polymerized
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- 239000003995 emulsifying agent Substances 0.000 title claims abstract description 51
- 239000000839 emulsion Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 title abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 39
- 239000002253 acid Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 47
- 150000002632 lipids Chemical class 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000006185 dispersion Substances 0.000 claims description 15
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 14
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 14
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 8
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical group OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 7
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 4
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 4
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 4
- 239000005639 Lauric acid Substances 0.000 claims description 4
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 claims description 4
- 239000005642 Oleic acid Substances 0.000 claims description 4
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 4
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 claims description 4
- 235000020661 alpha-linolenic acid Nutrition 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 150000004665 fatty acids Chemical class 0.000 claims description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 4
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 4
- 229960004488 linolenic acid Drugs 0.000 claims description 4
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 claims description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 4
- 239000008117 stearic acid Substances 0.000 claims description 4
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 claims description 3
- 239000003760 tallow Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 235000021281 monounsaturated fatty acids Nutrition 0.000 claims description 2
- 150000004671 saturated fatty acids Chemical class 0.000 claims description 2
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims description 2
- 150000004670 unsaturated fatty acids Chemical class 0.000 claims description 2
- 239000000243 solution Substances 0.000 abstract description 32
- 238000006116 polymerization reaction Methods 0.000 abstract description 26
- 238000006243 chemical reaction Methods 0.000 abstract description 20
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract description 16
- 239000000178 monomer Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 2
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 239000003999 initiator Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000007720 emulsion polymerization reaction Methods 0.000 description 5
- -1 ionogen Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010792 warming Methods 0.000 description 5
- 230000009466 transformation Effects 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000010092 rubber production Methods 0.000 description 2
- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 description 1
- GSFSVEDCYBDIGW-UHFFFAOYSA-N 2-(1,3-benzothiazol-2-yl)-6-chlorophenol Chemical compound OC1=C(Cl)C=CC=C1C1=NC2=CC=CC=C2S1 GSFSVEDCYBDIGW-UHFFFAOYSA-N 0.000 description 1
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- 208000015220 Febrile disease Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention belongs to the field of emulsion polymerized butadiene styrene rubber and relates to a preparation method of an emulsion polymerized butadiene styrene rubber special-purpose emulsifier. The preparation method comprises adding a dispersant into deoxidized softened water, carrying out stirring to obtain a dispersant solution with a mass fraction of 0.01-0.05%, adding aliphatic acid into the dispersant solution, carrying out stirring dissolution, keeping a temperature of 50 DEG C, adding sodium hydroxide into the mixed solution, carrying out stirring, and adjusting the solution pH in a range of 10.0-11.0 to obtain a solution which is the emulsion polymerized butadiene styrene rubber special-purpose emulsifier. The emulsion polymerized butadiene styrene rubber special-purpose emulsifier is used for polymerization monomer polymerization for emulsion polymerized butadiene styrene rubber preparation. The preparation method has clean processes, has no pollution, does not discharge waste water and refuse, substantially improves emulsion polymerized butadiene styrene rubber solution reaction stability, effectively improves a butadiene conversion rate and improves emulsion polymerized butadiene styrene rubber market competitiveness.
Description
Technical field
The invention belongs to emulsion polymerized styrene butadiene rubber field, be specifically related to a kind of preparation method of emulsion polymerized styrene butadiene rubber emulsifier special.
Background technology
According to the difference of polymerization technique, styrene-butadiene rubber(SBR) is divided into emulsion polymerized styrene butadiene rubber and solution polymerized butadiene styrene rubber.Compared with solution polymerized butadiene styrene rubber technique, emulsion polymerized styrene butadiene rubber technique is more preponderated in cost-saving, and global styrene-butadiene rubber(SBR) device about has the production capacity of 75% based on emulsion polymerized styrene butadiene rubber technique.Emulsion polymerized styrene butadiene rubber is with divinyl, vinylbenzene for principal monomer, prepares through emulsion method polymerization.Emulsion polymerized styrene butadiene rubber has good over-all properties, and technical maturity is widely used, and production capacity, output and consumption all account for first place in styrene-butadiene rubber(SBR).Traditional styrene-butadiene rubber(SBR) production technique, production process has the shortcomings such as letex polymerization is thorough, feed stock conversion is low, and product easily lumps, toughness is low, and quality reduces greatly.
Summary of the invention
The object of this invention is to provide a kind of preparation method of emulsion polymerized styrene butadiene rubber emulsifier special, this emulsifying agent can increase the stability of emulsion polymerized styrene butadiene rubber solution reaction, effectively improves the transformation efficiency of divinyl.
The preparation method of emulsion polymerized styrene butadiene rubber emulsifier special of the present invention, comprises the following steps:
(1) be added to the water by dispersion agent, stirring obtained massfraction is the dispersant solution of 0.01 ~ 0.05%;
(2) lipid acid is joined in the obtained solution of step (1), stirring and dissolving;
(3) in the obtained mixing solutions of step (2), add sodium hydroxide, stir, make solution ph 10.0 ~ 11.0, be emulsion polymerized styrene butadiene rubber emulsifier special.
Wherein: dispersion agent is aliphatic amine polyoxyethylene ether and fatty alcohol-polyoxyethylene ether is that 1:1 ~ 2 mix according to weight ratio.
In step (1), water is preferably deoxidation softening water.
The temperature stirred in step (1) is 50 DEG C.Stirring obtained massfraction in step (1) is the dispersant solution of 0.01 ~ 0.05%, and preferably obtained massfraction is the dispersant solution of 0.02%.
The massfraction of the lipid acid in the mixing solutions obtained after adding lipid acid in step (2) is 7% ~ 8%.
In step (2), lipid acid is one or more in saturated fatty acid, monounsaturated fatty acid or polybasic unsaturated fatty acid.Be preferably in semi-harden tallow fatty acids, stearic acid, palmitinic acid, tetradecanoic acid, oleic acid, lauric acid, Zoomeric acid or linolenic acid one or more.
The massfraction of the sodium hydroxide after preferably adding sodium hydroxide in step (3) in solution is 1% ~ 1.2%.
The temperature keeping mixing solutions when adding sodium hydroxide in step (3) is 45 ~ 55 DEG C.
In step (3), solution final ph is 10.0 ~ 11.0, is preferably 10.6 ~ 11.0.
In step (3), churning time is 15 ~ 20min, preferred 15min.
The emulsifying agent that the present invention prepares is a kind of fatty acid sodium soap.The application of emulsion polymerized styrene butadiene rubber emulsifier special of the present invention, is used for, in the polyreaction of polymerization single polymerization monomer, preparing emulsion polymerized styrene butadiene rubber by this kind of emulsifying agent.Adopt the preparation method of existing emulsion polymerized styrene butadiene rubber, in reaction process, add the emulsifying agent that the present invention is made.As: this kind of emulsifying agent is mixed by existing formula with polymerization single polymerization monomer, ionogen, initiator, molecular weight regulator, carries out polyreaction, after reaction terminates, add terminator termination reaction, finally obtained emulsion polymerized styrene butadiene rubber; Polymerization single polymerization monomer is preferably divinyl and vinylbenzene.
Emulsifying agent stable in properties prepared by the present invention, the airtight rear long-term preservation of solution is not stratified.When this emulsifying agent is applied to emulsion polymerized styrene butadiene rubber production, significantly can increase the stability of emulsion polymerized styrene butadiene rubber solution reaction, effectively improve the transformation efficiency of divinyl, improve the market competitiveness of emulsion polymerized styrene butadiene rubber.
The present invention compared with prior art, has following beneficial effect:
(1) the present invention is simple, and exploitativeness is strong, and production process cleanliness without any pollution, does not have waste water and waste discharge, nontoxic pollution-free again, can significantly improve the transformation efficiency of raw material divinyl, reduces the cost of product styrene-butadiene rubber(SBR).
(2) feed stock conversion of the present invention is high, and product working substance purity is high, stable performance.
(3) the present invention changes the character of conventional emulsifier, and the emulsifying agent obtained is creamy white or light yellow transparent liquid.This emulsifying agent stable in properties, the airtight rear long-term preservation of solution is not stratified.
(4) when emulsifying agent prepared by the present invention being applied to emulsion polymerized styrene butadiene rubber production, significantly can increase the stability of emulsion polymerized styrene butadiene rubber solution reaction, effectively improve more than the transformation efficiency to 84% of divinyl, improve the market competitiveness of emulsion polymerized styrene butadiene rubber.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment
In embodiment, dispersion agent is purchased from Zhejiang development of evil in febrile disease limited energy company; Semi-harden tallow fatty acids, stearic acid are commercially available prod; Lauric acid, tetradecanoic acid are purchased from Guangzhou Sheng Yue foreign trade company limited; Palmitinic acid, oleic acid, Zoomeric acid, linolenic acid are purchased from Fujian Zhong Min Chemical Co., Ltd.; Sodium hydroxide is purchased from Shandong Xin Shan Trade Co., Ltd.; Divinyl and vinylbenzene are purchased from Beijing Yanshan Petrochemical Co., Ltd., Sinopec Corp..
In embodiment 1-5, electrolyte solution adopts disodium edta, initiator to adopt sodium sulfoxylate formaldehyde, molecular weight regulator to adopt tert-dodecyl mercaptan, terminator to adopt Sodium Dimethyldithiocarbamate, is commercially available prod.
Embodiment 1
Prepare a kind of emulsion polymerized styrene butadiene rubber emulsifier special: take dispersion agent and be dissolved in 1000g deoxidation softening water, make the dispersant solution (dispersion agent is aliphatic amine polyoxyethylene ether and fatty alcohol-polyoxyethylene ether is 1:1 mixing according to weight ratio) that mass percentage concentration is 0.02%, add 81.4g lipid acid (stearic acid) again, be warming up to 50 DEG C, stirring and dissolving lipid acid, sodium hydroxide 12.3g is added in above-mentioned mixing solutions, 50 DEG C are kept to stir 15 minutes, obtain light yellow transparent liquid, be emulsifying agent, the pH value of testing this emulsifying agent is 10.8.
Then emulsifying agent is mixed with polymerization single polymerization monomer, electrolyte solution, initiator, molecular weight regulator, carry out emulsion polymerization, after reaction terminates, add terminator termination reaction, finally obtained emulsion polymerized styrene butadiene rubber.Polyreaction tracing detection, monomer polymerization rate reaches 95%.
Embodiment 2
Prepare a kind of emulsion polymerized styrene butadiene rubber emulsifier special: take dispersion agent and be dissolved in 1000g deoxidation softening water, make the dispersant solution (dispersion agent is aliphatic amine polyoxyethylene ether and fatty alcohol-polyoxyethylene ether is 1:2 mixing according to weight ratio) that mass percentage concentration is 0.01%, add 74g lipid acid (palmitinic acid) again, be warming up to 50 DEG C, stirring and dissolving lipid acid, sodium hydroxide 12.0g is added in above-mentioned mixing solutions, 50 DEG C are kept to stir 15 minutes, obtain light yellow transparent liquid, be emulsifying agent, the pH value of testing this emulsifying agent is 9.7.
Then emulsifying agent being mixed according to necessarily filling a prescription with polymerization single polymerization monomer, ionogen, initiator, molecular weight regulator, carrying out emulsion polymerization, after reaction terminates, add terminator termination reaction, finally obtained emulsion polymerized styrene butadiene rubber.Polyreaction tracing detection, monomer polymerization rate reaches 84%.
Embodiment 3
Prepare a kind of emulsion polymerized styrene butadiene rubber emulsifier special: take dispersion agent and be dissolved in 1000g deoxidation softening water, make the dispersant solution (dispersion agent is aliphatic amine polyoxyethylene ether and fatty alcohol-polyoxyethylene ether is 1:1.5 mixing according to weight ratio) that mass percentage concentration is 0.05%, add 58g lipid acid (lauric acid) again, be warming up to 50 DEG C, stirring and dissolving lipid acid, sodium hydroxide 12.1g is added in above-mentioned mixing solutions, 50 DEG C are kept to stir 15 minutes, obtain light yellow transparent liquid, be emulsifying agent, the pH value of testing this emulsifying agent is 10.1.
Then emulsifying agent being mixed according to necessarily filling a prescription with polymerization single polymerization monomer, ionogen, initiator, molecular weight regulator, carrying out emulsion polymerization, after reaction terminates, add terminator termination reaction, finally obtained emulsion polymerized styrene butadiene rubber.Polyreaction tracing detection, monomer polymerization rate reaches 88%.
Embodiment 4
Prepare a kind of emulsion polymerized styrene butadiene rubber emulsifier special: take dispersion agent and be dissolved in 1000g deoxidation softening water, make the dispersant solution (dispersion agent is aliphatic amine polyoxyethylene ether and fatty alcohol-polyoxyethylene ether is 1:1 mixing according to weight ratio) that mass percentage concentration is 0.02%, add 78g lipid acid (linolenic acid) again, be warming up to 50 DEG C, stirring and dissolving lipid acid, sodium hydroxide 13.0g is added in above-mentioned mixing solutions, 50 DEG C are kept to stir 15 minutes, obtain light yellow transparent liquid, be emulsifying agent, the pH value of testing this emulsifying agent is 11.2.
Then emulsifying agent being mixed according to necessarily filling a prescription with polymerization single polymerization monomer, ionogen, initiator, molecular weight regulator, carrying out emulsion polymerization, after reaction terminates, add terminator termination reaction, finally obtained emulsion polymerized styrene butadiene rubber.Polyreaction tracing detection, monomer polymerization rate reaches 85%.
Embodiment 5
Prepare a kind of emulsion polymerized styrene butadiene rubber emulsifier special: take dispersion agent and be dissolved in 1000g water, make the dispersant solution (dispersion agent is aliphatic amine polyoxyethylene ether and fatty alcohol-polyoxyethylene ether is 1:2 mixing according to weight ratio) that mass percentage concentration is 0.02%, add 81g lipid acid (oleic acid) again, be warming up to 50 DEG C, stirring and dissolving lipid acid, sodium hydroxide 13.5g is added in above-mentioned mixing solutions, 50 DEG C are kept to stir 15 minutes, obtain light yellow transparent liquid, be emulsifying agent, the pH value of testing this emulsifying agent is 12.
Then emulsifying agent being mixed according to necessarily filling a prescription with polymerization single polymerization monomer, ionogen, initiator, molecular weight regulator, carrying out emulsion polymerization, after reaction terminates, add terminator termination reaction, finally obtained emulsion polymerized styrene butadiene rubber.Polyreaction tracing detection, monomer polymerization rate reaches 85%.
Claims (9)
1. a preparation method for emulsion polymerized styrene butadiene rubber emulsifier special, is characterized in that: comprise the following steps:
(1) be added to the water by dispersion agent, stirring obtained massfraction is the dispersant solution of 0.01 ~ 0.05%;
(2) lipid acid is joined in the obtained solution of step (1), stirring and dissolving;
(3) in the obtained mixing solutions of step (2), add sodium hydroxide, stir, make solution ph 10.0 ~ 11.0, be emulsion polymerized styrene butadiene rubber emulsifier special.
2. the preparation method of emulsion polymerized styrene butadiene rubber emulsifier special according to claim 1, is characterized in that: dispersion agent is aliphatic amine polyoxyethylene ether and fatty alcohol-polyoxyethylene ether is that 1:1 ~ 2 mix according to weight ratio.
3. the preparation method of emulsion polymerized styrene butadiene rubber emulsifier special according to claim 1, is characterized in that: in step (1), water is deoxidation softening water.
4. the preparation method of emulsion polymerized styrene butadiene rubber emulsifier special according to claim 1, is characterized in that: the temperature stirred in step (1) is 48 ~ 53 DEG C.
5. the preparation method of emulsion polymerized styrene butadiene rubber emulsifier special according to claim 1, is characterized in that: the massfraction of the lipid acid in the mixing solutions obtained after adding lipid acid in step (2) is 7% ~ 8%.
6. the preparation method of emulsion polymerized styrene butadiene rubber emulsifier special according to claim 1 or 5, is characterized in that: in step (2), lipid acid is one or more in saturated fatty acid, monounsaturated fatty acid or polybasic unsaturated fatty acid.
7. the preparation method of emulsion polymerized styrene butadiene rubber emulsifier special according to claim 6, is characterized in that: in step (2), lipid acid is one or more in semi-harden tallow fatty acids, stearic acid, palmitinic acid, tetradecanoic acid, oleic acid, lauric acid, Zoomeric acid or linolenic acid.
8. the preparation method of emulsion polymerized styrene butadiene rubber emulsifier special according to claim 1, is characterized in that: the temperature keeping mixing solutions when adding sodium hydroxide in step (3) is 45 ~ 55 DEG C.
9. the preparation method of emulsion polymerized styrene butadiene rubber emulsifier special according to claim 1, is characterized in that: in step (3), churning time is 15 ~ 20min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107406528A (en) * | 2015-11-30 | 2017-11-28 | Lg化学株式会社 | Process for preparing styrene-butadiene rubber with low bound styrene content |
| CN114456316A (en) * | 2020-11-07 | 2022-05-10 | 中国石油化工股份有限公司 | Method for improving emulsion polymerized styrene butadiene rubber conversion rate |
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| CN101597383A (en) * | 2009-07-10 | 2009-12-09 | 淄博腾辉油脂化工有限公司 | A kind of synthesis technique of emulsifier special for rubber |
| CN102731874A (en) * | 2011-04-07 | 2012-10-17 | 中国石油天然气股份有限公司 | Modified rubber and preparation method thereof |
| CN102942658A (en) * | 2012-10-31 | 2013-02-27 | 大连理工大学 | Functional emulsion styrene-butadiene rubber and preparation method thereof |
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- 2015-06-24 CN CN201510354261.8A patent/CN105017483A/en active Pending
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| CN1271740A (en) * | 1999-04-22 | 2000-11-01 | 山东省蓬莱市化工总厂 | Production method of high styrene |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107406528A (en) * | 2015-11-30 | 2017-11-28 | Lg化学株式会社 | Process for preparing styrene-butadiene rubber with low bound styrene content |
| CN107406528B (en) * | 2015-11-30 | 2019-06-04 | Lg化学株式会社 | Process for preparing styrene-butadiene rubber with low bound styrene content |
| US10407566B2 (en) | 2015-11-30 | 2019-09-10 | Lg Chem, Ltd. | Method for preparing styrene-butadiene rubber having low combined styrene content |
| CN114456316A (en) * | 2020-11-07 | 2022-05-10 | 中国石油化工股份有限公司 | Method for improving emulsion polymerized styrene butadiene rubber conversion rate |
| CN114456316B (en) * | 2020-11-07 | 2024-01-09 | 中国石油化工股份有限公司 | Method for improving emulsion polymerized styrene-butadiene rubber conversion rate |
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Application publication date: 20151104 |