WO2019006670A1 - Décapant de peinture à base de solvant, et procédé associé pour enlever de la peinture d'une pièce - Google Patents
Décapant de peinture à base de solvant, et procédé associé pour enlever de la peinture d'une pièce Download PDFInfo
- Publication number
- WO2019006670A1 WO2019006670A1 PCT/CN2017/091737 CN2017091737W WO2019006670A1 WO 2019006670 A1 WO2019006670 A1 WO 2019006670A1 CN 2017091737 W CN2017091737 W CN 2017091737W WO 2019006670 A1 WO2019006670 A1 WO 2019006670A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- workpiece
- parts
- paint
- solvent
- based paint
- Prior art date
Links
- 239000003973 paint Substances 0.000 title claims abstract description 83
- 239000002904 solvent Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229960000583 acetic acid Drugs 0.000 claims abstract description 11
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 11
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 10
- 239000011734 sodium Substances 0.000 claims abstract description 10
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229930003836 cresol Natural products 0.000 claims abstract description 9
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 11
- 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 claims description 9
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 8
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003204 osmotic effect Effects 0.000 abstract description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 2
- 230000037303 wrinkles Effects 0.000 abstract description 2
- IDQBJILTOGBZCR-UHFFFAOYSA-N 1-butoxypropan-1-ol Chemical compound CCCCOC(O)CC IDQBJILTOGBZCR-UHFFFAOYSA-N 0.000 abstract 1
- 229940077388 benzenesulfonate Drugs 0.000 abstract 1
- -1 sodium alkyl benzene Chemical class 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 235000019445 benzyl alcohol Nutrition 0.000 description 2
- 239000006184 cosolvent Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- RLJSXMVTLMHXJS-UHFFFAOYSA-M sodium;4-decylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 RLJSXMVTLMHXJS-UHFFFAOYSA-M 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/04—Chemical paint or ink removers with surface-active agents
Definitions
- the present invention relates to the field of surface treatment technology, and in particular to a solvent type paint stripper and its application and a workpiece stripping method.
- the surface treatment technology of the workpiece is usually applied.
- the surface treatment of aluminum, iron and their alloys goes deep into all walks of life.
- most of the work needs to be pretreated before surface treatment, for example, cleaning, decontamination and degreasing, and stripping is required for some specific workpieces.
- the coating needs to be recoated and the old coating needs to be removed before repainting.
- Paint strippers usually use the penetration of solvent molecules to swell, soften, wrinkle and dissolve the crosslinked polymer material under the action of activators, cosolvents and other components, and peel off off the surface of the substrate.
- Some paint strippers contain methylene chloride, phenol, toluene solvent and hydrofluoric acid. These paint strippers are highly toxic and highly corrosive to the substrate.
- a solvent-based paint remover which is safe and effective and which is less corrosive to a substrate, and an application thereof and a paint stripping method of the workpiece are provided.
- a solvent-based paint stripper comprising the following components in parts by weight: 60-100 parts of propylene glycol butyl ether, 10-30 parts of glacial acetic acid, 10-20 parts of benzyl alcohol, 5-20 parts of a Phenol, 1-4 parts sodium alkylbenzene sulfonate.
- a workpiece stripping method comprising the steps of: formulating a solvent-based paint stripper as described above; pouring a paint stripper into a paint strip; immersing the paint workpiece in the bath, the paint film is thicker
- the workpiece can be first smeared with a knife and then immersed in the paint strip. After the coating on the surface of the workpiece is foamed or wrinkled, it is taken out, and the workpiece is placed in clean water to rinse or rinse, and the coating is separated from the surface of the workpiece.
- the solvent type paint stripper is used for surface coating or plastic layer removal of a metal workpiece.
- a solvent-based paint stripper comprising the following components in parts by weight: 60-100 parts of propylene glycol butyl ether, 10-30 parts of glacial acetic acid, 10-20 parts of benzyl alcohol, 5-20 parts of A Phenol, 1-4 parts sodium alkylbenzene sulfonate.
- a workpiece stripping method comprising the steps of: formulating a solvent-based paint remover as described above; pouring a paint stripper into a paint strip; immersing the paint workpiece in the bath, the paint film is thick
- the workpiece can be first smeared with a knife and then immersed in the paint strip. After the coating on the surface of the workpiece is foamed or wrinkled, it is taken out, and the workpiece is placed in clean water to rinse or rinse, and the coating is separated from the surface of the workpiece.
- the solvent-based paint stripper is used for surface coating or plastic layer removal of a metal workpiece.
- This embodiment provides a solvent-based paint stripper comprising the following components in parts by weight: 60-1 00 parts of propylene glycol butyl ether, 10-30 parts of glacial acetic acid, 10-20 parts of benzyl alcohol, 5-20 parts of cresol, 1-4 parts of sodium alkylbenzene sulfonate.
- the parts by weight of the propylene glycol butyl ether are preferably from 70 to 90.
- the glacial acetic acid is preferably 15-25 parts by weight.
- the parts by weight of benzyl alcohol are preferably 12-18.
- the cresol is preferably 10-15 parts by weight.
- the sodium alkylbenzenesulfonate is preferably 2-3 parts by weight.
- the stripping agent stripping mechanism of the embodiment is: using propylene glycol butyl ether as a solvent, and having a low molecular weight, it can quickly penetrate into the coating layer after the paint stripping, so that the paint film softens and swells, and falls off as soon as possible.
- the dissolving power is centered, so that the peeled coating is not melted in the paint stripper, which contributes to the service life of the paint stripper.
- Benzyl alcohol is used as a co-solvent to enhance the stripping effect.
- Glacial acetic acid and cresol act as activators to accelerate the separation of the coating from the substrate.
- Sodium alkylbenzene sulfonate acts as a retarder to form a film on the surface of the solution to close the surface.
- the solvent in the paint stripper is difficult to volatilize and improves the paint stripping effect.
- the above solvent-based paint stripping agent is mainly used for surface coating or plastic layer removal of metal workpieces.
- the metal workpiece can be aluminum, iron, zinc alloy, etc.
- the coating can be various types of electrophoretic paint, baking varnish, etc., or can be spray-coated.
- the aluminum stripping method includes the following steps: Pour the stripping liquid into the stripping tank, and then immerse the stripped workpiece in the product. The thicker film can be scratched to the metal substrate. Re-immersion In the liquid. After the coating on the surface of the workpiece is blistered or wrinkled, take it out, rinse or rinse the workpiece in clean water, and the coating will be clean and completely detached from the workpiece.
- the impregnation time is 1-10 minutes.
- the above solvent-based paint remover adopts the combination of the above-mentioned formula components, does not use strong corrosive concentrated sulfuric acid, has low corrosivity to the substrate, is safe and environmentally friendly, and the organic paint stripping agent used for the solvent type paint remover is highly efficient.
- the expansion and peeling type paint remover removes the paint film by osmotic expansion, and the paint stripping speed is fast and the service life is long.
- composition range, preparation method, and use effect of the above paint remover are exemplified by a plurality of examples.
- the paint stripping method is as follows: the solvent-based paint stripper is added to the paint strip; the lacquered workpiece is immersed in the bath for 5 minutes, taken out, the surface of the workpiece is observed, the coating is foamed off, and the workpiece is placed. Rinse into clean water, the workpiece is clean and free of residue, no corrosion.
- the stripping method is as follows: the solvent-based paint stripper is added to the paint strip; the lacquered workpiece is immersed in the bath for 5 minutes, taken out, the surface of the workpiece is observed, the coating is foamed off, and the workpiece is placed Rinse into clean water, the workpiece is clean and free of residue, no corrosion.
- the paint stripping method is as follows: adding the configured solvent type paint stripper to the paint strip; immersing the paint workpiece in the tank 5 minutes in the liquid, take out, observe the surface of the workpiece, the coating foaming off, the workpiece is washed in clean water, the workpiece is clean and free of residue, no corrosion.
- the paint stripping method is as follows: the solvent-based paint stripper is added to the paint strip; the lacquered workpiece is immersed in the bath for 5 minutes, taken out, the surface of the workpiece is observed, the coating is foamed off, and the workpiece is placed. Rinse into clean water, the workpiece is clean and free of residue, no corrosion.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
L'invention porte sur un décapant de peinture à base de solvant et sur un procédé associé pour enlever de la peinture d'une pièce. Le décapant de peinture à base de solvant est constitué des constituants suivants en parties en poids : de 60 parties à 100 parties d'éther butylique de propanediol, de 10 parties à 30 parties d'acide acétique glacial, de 10 parties à 20 parties d'alcool benzylique, de 5 parties à 20 parties de crésol et de 1 partie à 4 parties d'alkylbenzène sulfonate de sodium. Le procédé pour enlever de la peinture comprend les étapes consistant à : préparer un décapant de peinture à base de solvant ; verser le décapant de peinture dans un réservoir d'élimination de peinture ; immerger une pièce avec de la peinture dans la solution dans le réservoir, peindre une pièce avec un film de peinture plus épais pouvant être ouvert d'abord à l'aide d'un couteau, puis la pièce pouvant être immergée dans le réservoir d'élimination de peinture ; et après un revêtement sur la surface des bulles ou des rides de la pièce, retirer la pièce, et placer la pièce dans de l'eau pour un lavage ou un rinçage, et le revêtement étant séparé de la surface de la pièce. L'acide sulfurique concentré hautement corrosif n'est pas contenu dans le décapant de peinture à base de solvant, ce qui ne génère pas de corrosion sur un substrat ; et au moyen de l'effet d'expansion osmotique, le film de peinture est décollé sous forme de flocons, la vitesse d'enlèvement de peinture est élevée et la durée de vie est longue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/091737 WO2019006670A1 (fr) | 2017-07-04 | 2017-07-04 | Décapant de peinture à base de solvant, et procédé associé pour enlever de la peinture d'une pièce |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/091737 WO2019006670A1 (fr) | 2017-07-04 | 2017-07-04 | Décapant de peinture à base de solvant, et procédé associé pour enlever de la peinture d'une pièce |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019006670A1 true WO2019006670A1 (fr) | 2019-01-10 |
Family
ID=64950460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2017/091737 WO2019006670A1 (fr) | 2017-07-04 | 2017-07-04 | Décapant de peinture à base de solvant, et procédé associé pour enlever de la peinture d'une pièce |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2019006670A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI712448B (zh) * | 2017-03-24 | 2020-12-11 | 日商旭化成股份有限公司 | 膜蒸餾用多孔質膜及膜蒸餾用模組之運轉方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464477A (en) * | 1992-09-18 | 1995-11-07 | Crest Ultrasonics Corporation | Process for cleaning and drying ferrous surfaces without causing flash rusting |
| CN1944547A (zh) * | 2006-10-11 | 2007-04-11 | 中国化工建设总公司常州涂料化工研究院 | 脱漆剂及其制备方法和使用方法 |
| CN103937322A (zh) * | 2014-04-23 | 2014-07-23 | 中国人民解放军第五七一九工厂 | 一种无水脱漆剂组合物 |
| CN104151918A (zh) * | 2014-08-28 | 2014-11-19 | 山东威达机械股份有限公司 | 一种中性环保脱漆剂 |
| CN104194467A (zh) * | 2014-09-18 | 2014-12-10 | 合肥工业大学 | 一种聚氨酯类漆包线水基脱漆剂 |
| US9593247B2 (en) * | 2012-02-10 | 2017-03-14 | Atotech Deutschland Gmbh | Composition and method for removal of organic paint coatings from substrates |
-
2017
- 2017-07-04 WO PCT/CN2017/091737 patent/WO2019006670A1/fr active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464477A (en) * | 1992-09-18 | 1995-11-07 | Crest Ultrasonics Corporation | Process for cleaning and drying ferrous surfaces without causing flash rusting |
| CN1944547A (zh) * | 2006-10-11 | 2007-04-11 | 中国化工建设总公司常州涂料化工研究院 | 脱漆剂及其制备方法和使用方法 |
| US9593247B2 (en) * | 2012-02-10 | 2017-03-14 | Atotech Deutschland Gmbh | Composition and method for removal of organic paint coatings from substrates |
| CN103937322A (zh) * | 2014-04-23 | 2014-07-23 | 中国人民解放军第五七一九工厂 | 一种无水脱漆剂组合物 |
| CN104151918A (zh) * | 2014-08-28 | 2014-11-19 | 山东威达机械股份有限公司 | 一种中性环保脱漆剂 |
| CN104194467A (zh) * | 2014-09-18 | 2014-12-10 | 合肥工业大学 | 一种聚氨酯类漆包线水基脱漆剂 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI712448B (zh) * | 2017-03-24 | 2020-12-11 | 日商旭化成股份有限公司 | 膜蒸餾用多孔質膜及膜蒸餾用模組之運轉方法 |
| US11352270B2 (en) | 2017-03-24 | 2022-06-07 | Asahi Kasei Kabushiki Kaisha | Porous membrane for membrane distillation, and method for operating membrane distillation module |
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