CN101659806B - Paint remover for color-coated steel plates and using method thereof - Google Patents
Paint remover for color-coated steel plates and using method thereof Download PDFInfo
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- CN101659806B CN101659806B CN2008100129801A CN200810012980A CN101659806B CN 101659806 B CN101659806 B CN 101659806B CN 2008100129801 A CN2008100129801 A CN 2008100129801A CN 200810012980 A CN200810012980 A CN 200810012980A CN 101659806 B CN101659806 B CN 101659806B
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- paint remover
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Abstract
The invention discloses a paint remover for color-coated steel plates. The paint remover comprises the following compositions in percentage by mass: 60 to 89 percent of alcamines compound, 10 to 35 percent of phenolic compound and 1 to 8 percent of corrosion inhibitor. The alcamines compound is one or a mixture of more of ethanolamine, diethanol amine, triethanolamine and isopropanolamine; the phenolic compound is one or a mixture of phenol and cresol; and the corrosion inhibitor is alcohol or carbohydrate, and is one or a mixture of more of sorbitol, xylitol, mannite, sucrose, glucose, maltose or dextrin. Compared with the prior paint removers, the paint remover has good paint removal effect, is suitable for removing epoxy, polyester, high-performance polyester, silicon-modified polyester and polyurethane coatings, has high paint removal efficiency, shortens the paint removal time to about 60 seconds from the prior 2,400 seconds, and has slight corrosion to a substrate and the corrosion rate less than 0.2 percent.
Description
Technical field
The present invention relates to a kind of paint remover for color-coated steel plates and method of use thereof, be particularly useful for removing of epoxy, polyester, high-performance polyester, silicon modified polyesters and polyurethanes coating etc.
Background technology
When color-painted steel strip carries out analysis and the weight detecting quality examination of coating, detect after need the colored steel coating surfaces being removed.
At present, the depainting paint remover that generally uses in colored steel surface has following several types:
1. ketone sugaring type-paint remover: with acetone, butanone (methylethylketone) is major ingredient, additional with sucrose as friction agent.The problem that this paint remover exists is bad to the paint film solvability of epoxy type priming paint, has stronger volatility simultaneously, and paint removing effect is poor.
2. hydrochloric ether type-paint remover: hydrochloric ether wherein mainly refers to methylene dichloride, trichloromethane or chlorobenzene etc., has very strong volatility, in the depainting process; Need constantly add paint remover; For the sample of Φ 50mm, this paint remover depainting needs the time more than 20 minutes, and depainting efficient is low.
3. strong base-paint remover: the water-soluble paint stripper of forming with basic cpd such as sodium hydroxide, yellow soda ash etc.This paint remover is inapplicable for the substrate of amphoteric metal coating, and matrix is had serious corrodibility.
4. strong acid type-paint remover: with the aqueous solution paint remover that strong acid such as the vitriol oil, nitric acid etc. are formed, its matrix after to depainting has severe corrosive equally.
In sum, at present the depainting paint remover that uses in colored steel surface exists that paint removing effect is poor, depainting efficient is low and to problems such as substrate seriously corrodeds.
Summary of the invention
The invention provides a kind of paint remover for color-coated steel plates and method of use thereof, in order to solve that the paint removing effect that present paint remover exists is poor, depainting efficient is low and to the problem of substrate seriously corroded.
The objective of the invention is to realize like this, the invention provides a kind of paint remover for color-coated steel plates, the mass percent of its component is: alcamines material 60%～89%, aldehydes matter 10%～35%, inhibiter 1%～8%.
Said alcamines material contains one or more mixture of thanomin, diethylolamine, trolamine, Yi Bingchunan; Said aldehydes matter contains the mixture of one or both materials of phenol or cresols; Said inhibiter is alcohols or glucide, contains one or more mixture of sorbyl alcohol, Xylitol, N.F,USP MANNITOL, sucrose, glucose, SANMALT-S or dextrin.
Above-mentioned said medicament is technical grade or the above purity of technical grade.
The method of use of described paint remover: the paint remover that will prepare according to the above ratio is heated to boiling state, and the object that needs depainting is fully immersed in this ebullient paint remover, carries out depainting.
The present invention compares with the paint remover of present use, and paint removing effect is good, is applicable to removing of epoxy, polyester, high-performance polyester, silicon modified polyesters and polyurethanes coating etc.; Depainting efficient is high, and the depainting time shortened to about present 60 seconds by original 2400 seconds; Light to the substrate corrosion, corrosion rate is less than 0.2%.
Embodiment
Be that example further describes remover recipe, preparation, use and effect etc. with the analytical pure medicament below, but be not limited to this.
1. remover recipe
2. paint remover preparation
Above-mentioned medicine is mixed to scale, be heated to more than 60 ℃ and stir and process paint remover.
3. paint removing effect
Paint remover with above-mentioned prescription is heated to boiling temperature (being the depainting temperature, common 160 ℃-210 ℃) respectively, the coating model is immersed in the paint remover carry out depainting then, and concrete effect sees the following form.
4. paint remover is to the corrosion test of substrate
For investigating the corrosion situation of paint remover to the depainting metacoxa, select three kinds of common substrates such as big zinc flower, no zinc flower and hot-dip aluminizing zinc respectively, under the depainting temperature, soaked 15 seconds, the corrosion data of test is following:
By the qualitative data contrast before and after each substrate immersion in the last table, can prove: in the depainting process, after paint film removed, several seconds times of water coolant are mentioned and put into to model from paint remover, and paint remover can not cause corrosion to the model matrix basically.
Claims (5)
1. a paint remover for color-coated steel plates is characterized in that the mass percent of component is: alcamines material 60%～89%, aldehydes matter 10%～35%, inhibiter 1%～8%; Said alcamines material contains one or more mixture of thanomin, diethylolamine, trolamine, Yi Bingchunan; Said aldehydes matter contains the mixture of one or both materials of phenol or cresols.
2. a kind of paint remover for color-coated steel plates according to claim 1 is characterized in that said inhibiter is alcohols or glucide, contains one or more mixture of sorbyl alcohol, Xylitol, N.F,USP MANNITOL, sucrose, glucose, SANMALT-S or dextrin.
3. a kind of paint remover for color-coated steel plates according to claim 1 and 2, the purity that it is characterized in that said medicament are technical grade or more than the technical grade.
4. according to the method for use of any said a kind of paint remover for color-coated steel plates of claim 1～3, it is characterized in that the paint remover for preparing is heated to boiling state, the object that needs depainting is fully immersed in this ebullient paint remover, carry out depainting.
5. according to the method for use of the said a kind of paint remover for color-coated steel plates of claim 4, the boiling temperature that it is characterized in that paint remover is 160 ℃～210 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100129801A CN101659806B (en) | 2008-08-25 | 2008-08-25 | Paint remover for color-coated steel plates and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100129801A CN101659806B (en) | 2008-08-25 | 2008-08-25 | Paint remover for color-coated steel plates and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101659806A CN101659806A (en) | 2010-03-03 |
| CN101659806B true CN101659806B (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100129801A Active CN101659806B (en) | 2008-08-25 | 2008-08-25 | Paint remover for color-coated steel plates and using method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101659806B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411000B (en) * | 2010-09-25 | 2014-01-01 | 鞍钢股份有限公司 | Method for detecting hexavalent chrome in color-coated steel plate |
| CN102102150B (en) * | 2010-12-30 | 2013-04-24 | 佛山市邦普循环科技有限公司 | Method for separating tin from waste tinplate and preparing tin dioxide |
| CN103396696A (en) * | 2013-07-24 | 2013-11-20 | 张运泉 | Biodegradable environmentally-friendly paint remover |
| CN106752282B (en) * | 2017-01-17 | 2020-08-11 | 中冶建筑研究总院有限公司 | Method for quickly removing paint film of color-coated sheet |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944547A (en) * | 2006-10-11 | 2007-04-11 | 中国化工建设总公司常州涂料化工研究院 | Paint remover and its preparing method and using method |
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2008
- 2008-08-25 CN CN2008100129801A patent/CN101659806B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944547A (en) * | 2006-10-11 | 2007-04-11 | 中国化工建设总公司常州涂料化工研究院 | Paint remover and its preparing method and using method |
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| Publication number | Publication date |
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| CN101659806A (en) | 2010-03-03 |
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