CN103013221A - Preparation and application method of water-based paint remover - Google Patents
Preparation and application method of water-based paint remover Download PDFInfo
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- CN103013221A CN103013221A CN2012105419188A CN201210541918A CN103013221A CN 103013221 A CN103013221 A CN 103013221A CN 2012105419188 A CN2012105419188 A CN 2012105419188A CN 201210541918 A CN201210541918 A CN 201210541918A CN 103013221 A CN103013221 A CN 103013221A
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- paint remover
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Abstract
The invention discloses a preparation and application method of a water-based paint remover. The water-based paint remover consists of sodium hydroxide, a surface active agent and a composite additive. The mass fraction of sodium hydroxide is 3%-10% that of the surface active agentis 0.5%-2%, that of the composite additive is 1%-6%, and the rest is water. The surface active agent is octadecyl dihydroxy diethyl betaine; and the composite additive is composed of three of sodium lactate, sodium malate, sodium sarcosinate, natrium aceticum and sodium gluconate. The water-based paint remover disclosed by the invention has the characteristics of being efficient, environmentally-friendly, safe, nontoxic, barely corrosive and hard to volatilize, can be used for removing the paint from common metal and plastic base materials, and is simple and easy to prepare and use.
Description
Technical field
The present invention relates to a kind of preparation and using method of aq. type paint remover.
Background technology
The main component that common metal and plastics are painted is Resins, epoxy, acrylic resin and polyamide resin etc., such as the third diphenol Resins, epoxy, novolac epoxy, middle phenol Resins, epoxy and amido ethyl formate etc., these resins are attached on the base material securely after the solidification treatment, when base material need to reclaim, usually to first the resin on surface be disposed, if deal with improperly, be easy to contaminate environment, perhaps cause the wasting of resources.Treatment process generally has three at present: the one, and direct burning.At present a lot of enameled wires all are directly to burn, and owing to compositions such as nitrogenous in these resins and sulphur, are easy to contaminate environment, and the waste resource.The 2nd, remove with organic paint remover.Although organic depainting depainting is very fast, contain the large volatile organic matters of toxicity such as haloalkane, benzene and homologue and derivative, ether, hydramine in a lot of organic paint removers, harmful and easy contaminate environment.Behind the paint remover, lacquer and paint remover mix the organic liquid waste of forming component complexity, and chemical oxygen demand (COD) is very high, are difficult to process.Song Jian, water founds army. a kind of asepsis environment-protecting paint remover (patent No.: CN102408775A), Li Maicui, Wang Xinjun etc. CN 101880491A) etc. a kind of preparation technology of paint remover (patent No.: above-mentioned shortcoming is arranged, also have other patents of not enumerating that similar deficiency is also arranged.The 3rd, use basic paint remover.Because basic paint remover is easily perishable to base material, the depainting time is longer, perhaps contains the organism of toxic and volatile etc., and these shortcomings all limit the application of such paint remover.Yu Haiying, Zhang Shengwan etc. a kind of basic paint remover and preparation method thereof (patent No.: CN 1919939A) just contain volatile and poisonous phenylcarbinol and the nitrobenzene compound of sulfur-bearing in the described prescription.Li Jianqiang, Li Ren is brave etc. a kind of basic paint remover and preparation, the using method (patent No.: CN 1775871A), although this paint remover is respond well, but employed tensio-active agent cetyl trimethylammonium bromide also is highly toxic, and the use range of this paint remover remains to be widened, and the efficient of paint remover can continue to improve.For above situation, be necessary to research and develop a kind of efficient, environmental protection, nontoxic, the paint remover of little to base material corrodibility of applied range.
Summary of the invention
The object of the present invention is to provide a kind of preparation and using method of aq. type paint remover.This paint remover is used for removing paint on the base materials such as metal and plastics, has the depainting time short, safety and environmental protection, and cost is low, and to characteristics such as the base material corrosion are little.
The preparation method of a kind of aq. type paint remover provided by the invention:
Form paint remover by sodium hydroxide solution, tensio-active agent, composite additive mixing, wherein the sodium hydroxide massfraction is 3～10%, and the tensio-active agent massfraction is 0.5～2%, and the massfraction of composite additive is 1～6%, and surplus is water; Described tensio-active agent is octadecyl dihydroxy ethyl trimethyl-glycine, and composite additive is three kinds in sodium malate, Sodium.alpha.-hydroxypropionate, sodium sarcosinate, sodium-acetate, the Sunmorl N 60S.
Present method step is to configure first sodium hydroxide solution, adds tensio-active agent octadecyl dihydroxy ethyl trimethyl-glycine again, then adds composite additive, and surplus is water; Stirring is dissolved all components fully, obtains described paint remover.
The present invention also provides a kind of method of using described paint remover to carry out depainting, and device to be taken off is immersed in the paint remover fully, is heated to 40～90 ℃, is incubated 5～20 minutes and gets final product; For plastic basis material, 40～60 ℃ of temperature, for metal base, 75～90 ℃ of temperature; For the very difficult paint that removes, will article be taken off and paint remover place ultrasonic environment to remove.
?
Beneficial effect of the present invention is: can take off rapidly the resin on metal and the plastic plate base material, and minimum to metal base and polymer base material corrosion, environmental protection, highly effective, life cycle long (can use continuously 20～25 days), the health that can not endanger operator.
The prepared paint remover of the present invention, transparent clarification, depainting efficient is high, and is consuming time short, can remove in general 10 minutes totally for common paint, particularly for common electronic circuit board, can remove clean in 5 minutes.Advantage with organic paint remover.Raw materials used cheap being easy to get, difficult volatilization, odorless, tasteless stimulates littlely, and these several materials all are safety non-toxics.With octadecyl dihydroxy ethyl trimethyl-glycine as tensio-active agent, good emulsifying property, dispersiveness, wettability, static resistance and ph stability are not only arranged, and metal also had corrosion inhibition, Sunmorl N 60S also has corrosion inhibition in the compound prescription, they can bring into play synergistic effect together, need not like this to add especially inhibiter in paint remover.Behind the depainting, metal base is light totally, and plastic basis material is also clean without corrosion and deformation.And paint remover can be separated with the resin that takes off, and upper strata liquid is clear, colorless or be with light yellow still.The resin that takes off so just can be reused or as filler, and the chemical oxygen demand (COD) (COD) of paint remover is lower behind the depainting, easily processes, and whole process is all than environmental protection.
Embodiment
Embodiment 1
The circuit card that does not contain electronic component is placed paint remover, the consisting of of paint remover: sodium hydroxide 50g, octadecyl dihydroxy ethyl trimethyl-glycine 8g, composite additive (sodium malate 5g, sodium sarcosinate 8g, sodium-acetate 6g) 19g, water 900ml.75 ℃ for the treatment of temps, removing the complete time is 5 minutes, and metallic matrix and circuit are without corrosion, and clean in appearance is bright.
Embodiment 2
The circuit card that does not contain electronic component is placed paint remover, the consisting of of paint remover: sodium hydroxide 80g, octadecyl dihydroxy ethyl trimethyl-glycine 5g, composite additive (sodium malate 8g, Sodium.alpha.-hydroxypropionate 5g, sodium-acetate 7g) 20g, water 900ml.80 ℃ for the treatment of temps, removing the complete time is 6 minutes, and metallic matrix and circuit are without corrosion, and clean in appearance is bright.
Embodiment 3
The mobile phone shell of band coating is placed paint remover, the consisting of of paint remover: sodium hydroxide 90g, octadecyl dihydroxy ethyl trimethyl-glycine 6g, composite additive (sodium malate 10g, sodium sarcosinate 6g, sodium-acetate 9g) 25g, water 900ml.60 ℃ for the treatment of temps, removing the complete time is 7 minutes, macromolecule matrix is without corrosion-deformation, clean in appearance.
Embodiment 4
The mobile phone shell of band coating is placed paint remover, and what paint remover was right consists of: sodium hydroxide 50g, octadecyl dihydroxy ethyl trimethyl-glycine 7g, composite additive (sodium malate 11g, sodium sarcosinate 12g, Sunmorl N 60S 12g) 35g, water 900ml.45 ℃ for the treatment of temps, removing the complete time is 6 minutes, polymer base material is without corrosion-deformation, clean in appearance.
Embodiment 5
Enameled wire is cut into suitable shape places paint remover, sodium hydroxide 60g, octadecyl dihydroxy ethyl trimethyl-glycine 8g, composite additive (sodium malate 8g, sodium sarcosinate 15g, sodium-acetate 7g) 30g, water 900ml.90 ℃ for the treatment of temps, removing the complete time is 11 minutes, and copper wire is without corrosion, and clean in appearance is bright.
Embodiment 6
Enameled wire is cut into suitable shape places paint remover, sodium hydroxide 85g, octadecyl dihydroxy ethyl trimethyl-glycine 10g, composite additive (sodium malate 15g, sodium sarcosinate 15g, sodium-acetate 10g) 40g, water 900ml.75 ℃ for the treatment of temps, removing the complete time is 18 minutes, and copper wire is without corrosion, and clean in appearance is bright.
Claims (3)
1. the preparation method of an aq. type paint remover, it is characterized in that: mixed by sodium hydroxide solution, tensio-active agent, composite additive and form paint remover, wherein the sodium hydroxide massfraction is 3～10%, the tensio-active agent massfraction is 0.5～2%, the massfraction of composite additive is 1～6%, and surplus is water; Described tensio-active agent is octadecyl dihydroxy ethyl trimethyl-glycine, and composite additive is three kinds in sodium malate, Sodium.alpha.-hydroxypropionate, sodium sarcosinate, sodium-acetate, the Sunmorl N 60S.
2. preparation method as claimed in claim 1, it is characterized in that: the step of present method is to configure first sodium hydroxide solution, adds tensio-active agent octadecyl dihydroxy ethyl trimethyl-glycine again, then adds composite additive, surplus is water; Stirring is dissolved all components fully, obtains described paint remover.
3. a right to use requires 1 described paint remover to carry out the method for depainting, it is characterized in that: device to be taken off is immersed in the paint remover fully, is heated to 40～90 ℃, be incubated 5～20 minutes and get final product; For plastic basis material, 40～60 ℃ of temperature, for metal base, 75～90 ℃ of temperature; For the very difficult paint that removes, will article be taken off and paint remover place ultrasonic environment to remove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105419188A CN103013221A (en) | 2012-12-14 | 2012-12-14 | Preparation and application method of water-based paint remover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105419188A CN103013221A (en) | 2012-12-14 | 2012-12-14 | Preparation and application method of water-based paint remover |
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| CN103013221A true CN103013221A (en) | 2013-04-03 |
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| CN2012105419188A Pending CN103013221A (en) | 2012-12-14 | 2012-12-14 | Preparation and application method of water-based paint remover |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484886A (en) * | 2013-09-26 | 2014-01-01 | 无锡阳工机械制造有限公司 | Method for removing paint layer on surface of iron tool |
| CN103484887A (en) * | 2013-09-26 | 2014-01-01 | 无锡阳工机械制造有限公司 | Method for removing paint layer on surface of iron tool |
| CN103484885A (en) * | 2013-09-26 | 2014-01-01 | 无锡阳工机械制造有限公司 | Method for removing paint layer on surface of iron tool |
| CN103526216A (en) * | 2013-09-26 | 2014-01-22 | 无锡阳工机械制造有限公司 | Method for removing paint layer on surface of iron tool |
| CN104479443A (en) * | 2014-11-28 | 2015-04-01 | 李国金 | Environment-friendly paint remover and preparation method thereof |
| CN105762497A (en) * | 2014-12-18 | 2016-07-13 | 比亚迪股份有限公司 | Plastic-metal assembly and preparation method thereof |
| CN111029887A (en) * | 2019-12-19 | 2020-04-17 | 北京航天控制仪器研究所 | Device and method for stripping polyimide copper-clad wire coating layer |
| CN114456636A (en) * | 2022-02-21 | 2022-05-10 | 深圳市锐欧光学股份有限公司 | Toner fading agent and use method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775871A (en) * | 2005-12-12 | 2006-05-24 | 北京科技大学 | Alkali paint remover and its preparing and using method |
| CN1887979A (en) * | 2006-07-14 | 2007-01-03 | 北京科技大学 | Green alkaline paint remover for eliminating coating from electronic circuit board and its prepn and usage |
-
2012
- 2012-12-14 CN CN2012105419188A patent/CN103013221A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775871A (en) * | 2005-12-12 | 2006-05-24 | 北京科技大学 | Alkali paint remover and its preparing and using method |
| CN1887979A (en) * | 2006-07-14 | 2007-01-03 | 北京科技大学 | Green alkaline paint remover for eliminating coating from electronic circuit board and its prepn and usage |
Non-Patent Citations (1)
| Title |
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| 李东光: "《功能性洗涤剂生产与应用》", 31 January 2005, article "功能性洗涤剂生产与应用", pages: 33-36 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484885B (en) * | 2013-09-26 | 2016-02-03 | 无锡阳工机械制造有限公司 | A kind of method removing iron tool paint layer from surface |
| CN103484887A (en) * | 2013-09-26 | 2014-01-01 | 无锡阳工机械制造有限公司 | Method for removing paint layer on surface of iron tool |
| CN103484885A (en) * | 2013-09-26 | 2014-01-01 | 无锡阳工机械制造有限公司 | Method for removing paint layer on surface of iron tool |
| CN103526216A (en) * | 2013-09-26 | 2014-01-22 | 无锡阳工机械制造有限公司 | Method for removing paint layer on surface of iron tool |
| CN103526216B (en) * | 2013-09-26 | 2016-01-20 | 无锡阳工机械制造有限公司 | A kind of method removing iron tool paint layer from surface |
| CN103484886A (en) * | 2013-09-26 | 2014-01-01 | 无锡阳工机械制造有限公司 | Method for removing paint layer on surface of iron tool |
| CN103484887B (en) * | 2013-09-26 | 2016-03-02 | 无锡阳工机械制造有限公司 | A kind of method removing iron tool paint layer from surface |
| CN104479443A (en) * | 2014-11-28 | 2015-04-01 | 李国金 | Environment-friendly paint remover and preparation method thereof |
| CN105762497A (en) * | 2014-12-18 | 2016-07-13 | 比亚迪股份有限公司 | Plastic-metal assembly and preparation method thereof |
| CN105762497B (en) * | 2014-12-18 | 2018-10-16 | 比亚迪股份有限公司 | A kind of plastic cement-metal assembly and preparation method thereof |
| CN111029887A (en) * | 2019-12-19 | 2020-04-17 | 北京航天控制仪器研究所 | Device and method for stripping polyimide copper-clad wire coating layer |
| CN111029887B (en) * | 2019-12-19 | 2021-12-07 | 北京航天控制仪器研究所 | Device and method for stripping polyimide copper-clad wire coating layer |
| CN114456636A (en) * | 2022-02-21 | 2022-05-10 | 深圳市锐欧光学股份有限公司 | Toner fading agent and use method thereof |
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Application publication date: 20130403 |