CN103980761B - A kind of ABS plastic paint remover and stripping method thereof - Google Patents
A kind of ABS plastic paint remover and stripping method thereof Download PDFInfo
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- CN103980761B CN103980761B CN201410219685.9A CN201410219685A CN103980761B CN 103980761 B CN103980761 B CN 103980761B CN 201410219685 A CN201410219685 A CN 201410219685A CN 103980761 B CN103980761 B CN 103980761B
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- abs plastic
- paint remover
- remover
- phenylcarbinol
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Abstract
The invention discloses a kind of ABS plastic paint remover and stripping method thereof, this paint remover is for main solvent with the mixed solution of phenylcarbinol and butylacetate, take hydrogen peroxide as solubility promoter, be aided with Sodium dodecylbenzene sulfonate simultaneously, Walocel MT 20.000PV, paraffin, deionized water is composite to be formed, low toxicity, safety and environmental protection, during use, first ABS plastic is used acetic acid ultrasonic cleaning, and then use paint remover ultrasonic cleaning, whole process does not need heating, paint stripping rate is fast, can be recycled, can be used for the paint film removing shades of colour and kind, as epoxy-based lacquers, alkyd paint, acrylic paint, polyurethane paint etc., and the degree of injury that can reduce to greatest extent ABS plastic.
Description
Technical field
The invention belongs to technical field of coatings, be specifically related to a kind of paint remover and the using method that are directed to ABS plastic base material.
Background technology
ABS plastic is the engineering plastics that purposes is wide, consumption is large, price is low.Because it is easy to processing, and product has stability, has good shock resistance and thermal stability and is widely used in automobile, electronic apparatus etc.Often sprayed coating reaches the object of protection base material and aesthetic appeal in use.In use, coating can be damaged or aging gradually coating, needs first outmoded or damaged coating thoroughly to be removed to spray again, otherwise will affect the quality of film after workpiece recoat, and depainting is the surface pre-treating process after painting film destroy again before application.In order to economize on resources, ABS plastic surface is scraped off or the old paint film of weathering removes, then secondary application is come into operation.
Old paint film removed physics and chemistry two kinds of methods.Physical method comprises flame method, blast method, sand-blast etc.But plastics are had damage, larger to the nocuity of base material.Namely chemical process uses paint remover to remove paint film.The depainting principle of paint remover is according to " similar mix " and " solubility parameter is close " principle, by dissolving, infiltration, swelling, peel off and the series of physical such as reaction, chemical process realization.Conventional paint remover is proportionately grouped into and can be acid paint remover, heated alkaline paint remover, solvent stripper.Acid paint remover is mainly containing the vitriol oil, good to the paint film paint removing effect of metal material, but requires higher, simultaneously also higher to equipment sealing requirements to operational safety, is not suitable for ABS plastic base material depainting.The general phosphoric acid sodium of basic paint remover, water glass, caustic soda etc., the depainting time is general longer, comparatively strong and need heating to base material corrodibility.Solvent stripper is maximum, a most widely used class paint remover in the market, its generally by main solvent, solubility promoter, thickening material, press down volatilizer etc. and form.At present, industrial chemical stripper used is usually containing more methylene dichloride, phenol, easy volatile solvent and some other objectionable impurities, thus cause the volatility of paint remover and toxicity all comparatively large, and very large to the corrodibility of base material, this makes the rate of recovery of base material greatly reduce.
Summary of the invention
Technical problem to be solved by this invention is the shortcoming overcoming the existence of existing paint remover, according to the principle of " similar mix " and coating adhesion mechanism and coating process, there is provided a kind of low volatility, low toxicity or nontoxic, to matrix safety, to operator or environmentally friendly, use time do not need to heat, paint stripping rate is fast, the ABS plastic paint remover that can be recycled, and the using method of this paint remover.
The adopted technical scheme that solves the problem is that it is made up of the raw material of following percent mass proportioning:
Above-mentioned ABS plastic paint remover is preferably made up of the raw material of following percent mass proportioning:
Above-mentioned main solvent is the mixed solution of phenylcarbinol and butylacetate, and wherein phenylcarbinol is 60wt.% ~ 80wt.%, butylacetate is 20wt.% ~ 40wt.%, and preferred phenylcarbinol is 74wt.% ~ 80wt.%, butylacetate is 20wt.% ~ 26wt.%.
The preparation method of above-mentioned ABS plastic paint remover is: according to the percent mass proportioning of above-mentioned raw materials, phenylcarbinol and butylacetate are mixed, then hydrogen peroxide, Sodium dodecylbenzene sulfonate, Walocel MT 20.000PV and deionized water is added successively, stir, finally add paraffin and prevent solvent evaporates to seal top layer, obtain ABS plastic paint remover.
The using method of above-mentioned ABS plastic paint remover is: ABS plastic be soaked in acetic acid, supersound washing 5 ~ 10 minutes, is then soaked in ABS plastic paint remover, supersound washing 10 ~ 15 minutes.
Paint remover of the present invention is not containing methene chloride, safety and environmental protection, heating is not needed during use, can be used for the paint film removing shades of colour and kind, as epoxy-based lacquers, alkyd paint, acrylic paint, polyurethane paint etc., and the degree of injury that can reduce to greatest extent ABS plastic, this paint remover is had paint stripping rate is fast, low toxicity, low volatility, the advantage that can be recycled.
Embodiment
Below in conjunction with embodiment, the present invention is described in more detail, but protection scope of the present invention is not limited only to these embodiments.
Embodiment 1
To prepare ABS plastic paint remover 1000g of the present invention, raw material is composed as follows:
Its preparation method is: 408g phenylcarbinol and 102g butylacetate are mixed, then 150g hydrogen peroxide, 80g Sodium dodecylbenzene sulfonate, 40g Walocel MT 20.000PV and 200g deionized water is added successively, stir, finally add 20g paraffin and prevent solvent evaporates to seal top layer, obtain ABS plastic paint remover.
Embodiment 2
To prepare ABS plastic paint remover 1000g of the present invention, raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 3
To prepare ABS plastic paint remover 1000g of the present invention, raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 4
To prepare ABS plastic paint remover 1000g of the present invention, raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 5
To prepare ABS plastic paint remover 1000g of the present invention, raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 6
To prepare ABS plastic paint remover 1000g of the present invention, raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 7
ABS plastic be soaked in acetic acid, supersound washing 5 minutes, then takes out, and is soaked in ABS plastic paint remover, supersound washing 15 minutes.
Measure the paint removal efficiency (namely in the specified time, paint film expands and wrinkling area percent) of paint remover according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method ", paint removal efficiency calculation formula is as follows:
Test-results is in table 1.
The paint removal efficiency of table 1 paint remover of the present invention
| Paint remover | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Paint removal efficiency | 90％ | 75％ | 80％ | 75％ | 70％ | 80％ |
In order to determine optimum material proportion of the present invention, inventors performed a large amount of laboratory study tests, various test situation is as follows:
1, the selection of main solvent and solubility promoter
Select different solubility promoters (15g) and main solvent (50g) respectively, specifically in table 2 ~ 4, then mix 8g Sodium dodecylbenzene sulfonate, 4g Walocel MT 20.000PV, 2g paraffin and 20g deionized water, composite go out solubleness be respectively 9.0,10.0,11.0 double solvents.According to the method for embodiment 7 to ABS plastic base material depainting, test effect is in table 2 ~ 4.
Table 2 main solvent and solubility promoter are on the impact of paint removing effect
From table 2, under double solvents solubleness is 9.0,10.0,11.0 three kinds of different situations, with the mixed solution of phenylcarbinol and butylacetate be main solvent, hydrogen peroxide for solubility promoter time, paint removing effect is relatively better, when wherein double solvents solubleness is 11.0, in main solvent, phenylcarbinol accounts for 71%, butylacetate is when accounting for 29%, and paint removing effect is best, the paint film of about 80% can be taken off within 15 minutes, and minimum to base material nocuity.
Table 3 main solvent and solubility promoter are on the impact of paint removing effect
From table 3, with the mixed solution of methyl-sulphoxide, ethylene glycol monobutyl ether, Virahol for main solvent, the double solvents that solubleness is 9.0 cannot be made into.Under main solvent solubleness 10.0,11.0 two kinds of different situations, respectively with acetic acid, hydrogen peroxide, phenol for solubility promoter, paint removing effect is all poor.
Table 4 main solvent and solubility promoter are on the impact of paint removing effect
From table 4, respectively with acetic acid, hydrogen peroxide, phenol for solubility promoter, with the mixed solution of dimethylbenzene and propyl carbinol for main solvent, under main solvent solubleness is 9.0,10.0,11.0 three kinds of different situations, paint removing effect is obviously not ideal enough.
Comprehensive above-mentioned test, the present invention selects with the mixed solution of phenylcarbinol and butylacetate for main solvent, take hydrogen peroxide as solubility promoter.
2, phenylcarbinol and butylacetate proportioning is determined
Hydrogen peroxide (15g) is adopted to be solubility promoter, be main solvent (50g) with the mixed solution of phenylcarbinol and butylacetate, then 8g Sodium dodecylbenzene sulfonate, 3g Walocel MT 20.000PV, 2g paraffin and 20g deionized water is mixed, respectively composite go out solubleness be 10.5,10.7,10.9,11.0,11.2,11.5 double solvents, specifically in table 5.By ABS plastic first supersound washing 5 minutes in acetic acid, be then soaked in double solvents, supersound washing 15 minutes.Test-results is in table 5.
Table 5 phenylcarbinol and butylacetate proportioning are on the impact of paint removing effect
From table 5, solubleness paint removing effect in 10.5 ~ 11.5 scopes of double solvents is all better, the paint film of at least half can be taken off within 15 minutes, when wherein the solubleness of double solvents is 11.0 ~ 11.5, paint removing effect is better, and therefore main solvent of the present invention is preferably made up of 74wt.% ~ 80wt.% phenylcarbinol and 20wt.% ~ 26wt.% butylacetate.
3, the determination of stripping method
Scheme 1: get each two of coating agent which has to be dissolved in alcohol before use that is black, red, blue, yellow, is soaked in the paint remover of embodiment 1 preparation, at the uniform velocity stirs 15 minutes.
Scheme 2: get each two of coating agent which has to be dissolved in alcohol before use that is black, red, blue, yellow, first soaks 5 minutes in acetic acid, is then soaked in the paint remover of embodiment 1 preparation, stirs 15 minutes.
Scheme 3: get each two of coating agent which has to be dissolved in alcohol before use that is black, red, blue, yellow, first supersound washing 5 minutes in acetic acid, the paint remover supersound washing then prepared in embodiment 1 15 minutes.
Scheme 4: get each two of coating agent which has to be dissolved in alcohol before use that is black, red, blue, yellow, first supersound washing 10 minutes in acetic acid, the paint remover supersound washing then prepared in embodiment 1 20 minutes.
Test-results shows, the paint removing effect of scheme 3 is best, in acetic acid, supersound washing can take off the thinner coating agent which has to be dissolved in alcohol before use of paint film in 5 minutes completely, then the coating agent which has to be dissolved in alcohol before use that the paint film that can not take off for 15 minutes of paint remover supersound washing prepared in embodiment 1 is thicker, and very little to the injury tolerance of ABS plastic base material.And the depainting overlong time in scheme 4, the damage for base material is comparatively large, therefore will not take.
In order to prove beneficial effect of the present invention, contriver adopts the paint remover of embodiment 1 to carry out depainting according to the method for embodiment 7 to different types of paint film, and test-results is in table 6.
ABS plastic paint remover prepared by table 6 embodiment 1 is to the paint removal efficiency of different paint film
| Paint film kind | Urethane resin | Acrylic resin | Polymethylmethacrylate | Epoxy resin | Synolac |
| Paint removal efficiency | 100％ | 100％ | 95％ | 95％ | 98％ |
From table 6, paint remover of the present invention is not only high to the paint film elimination efficiency in ABS plastic, and effectively can remove other various paint films, and test-results shows it to the base material of the paint film of other shades of colour kinds all without obvious corrosion phenomenon simultaneously.
Claims (2)
1. an ABS plastic paint remover, is characterized in that it is made up of the raw material of following percent mass proportioning:
Above-mentioned main solvent is the mixed solution of phenylcarbinol and butylacetate, and wherein phenylcarbinol is 74wt.% ~ 80wt.%, butylacetate is 20wt.% ~ 26wt.%.
2. adopt a method for the ABS plastic paint remover depainting of claim 1, it is characterized in that: ABS plastic is soaked in acetic acid, supersound washing 5 ~ 10 minutes, be then soaked in ABS plastic paint remover, supersound washing 10 ~ 15 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410219685.9A CN103980761B (en) | 2014-05-22 | 2014-05-22 | A kind of ABS plastic paint remover and stripping method thereof |
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| CN201410219685.9A CN103980761B (en) | 2014-05-22 | 2014-05-22 | A kind of ABS plastic paint remover and stripping method thereof |
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| CN103980761B true CN103980761B (en) | 2015-10-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104999586A (en) * | 2015-07-29 | 2015-10-28 | 巢湖市荣达塑业有限公司 | Jet fluid for mixing of waste plastic particles |
| CN106519781B (en) * | 2016-11-15 | 2020-01-03 | 广东石油化工学院 | Powder coating paint removing composition and preparation method and application thereof |
| CN107236353A (en) * | 2017-06-28 | 2017-10-10 | 常州市鑫嘉生物科技有限公司 | A kind of ABS plastic paint stripper |
| CN109135407A (en) * | 2017-06-28 | 2019-01-04 | 四川大学 | A kind of room temperature watery paint remover and its preparation and application |
| CN109057384A (en) * | 2018-09-07 | 2018-12-21 | 北京公联洁达公路养护工程有限公司 | A kind of method of quick removal concrete surface film |
| CN110713747A (en) * | 2019-10-09 | 2020-01-21 | 房新民 | Environment-friendly and nontoxic water-based paint remover and preparation method thereof |
| CN115093742A (en) * | 2022-07-16 | 2022-09-23 | 任彭 | Paint removing liquid and preparation method thereof |
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| GB2377710A (en) * | 2001-07-18 | 2003-01-22 | Henkel Kgaa | A paint stripper |
| CN101555370A (en) * | 2008-04-10 | 2009-10-14 | 比亚迪股份有限公司 | Paint remover composition and method using same |
| CN103804983A (en) * | 2014-01-07 | 2014-05-21 | 严易舒 | Environment-friendly water-based paint remover for removing paint on surface of plastics as well as preparation method and application method of paint remover |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130210691A1 (en) * | 2007-01-31 | 2013-08-15 | Sunnyside Corporation | Color changing paint and varnish remover |
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Patent Citations (3)
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|---|---|---|---|---|
| GB2377710A (en) * | 2001-07-18 | 2003-01-22 | Henkel Kgaa | A paint stripper |
| CN101555370A (en) * | 2008-04-10 | 2009-10-14 | 比亚迪股份有限公司 | Paint remover composition and method using same |
| CN103804983A (en) * | 2014-01-07 | 2014-05-21 | 严易舒 | Environment-friendly water-based paint remover for removing paint on surface of plastics as well as preparation method and application method of paint remover |
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