Summary of the invention
Technical problem to be solved by this invention is to overcome the shortcoming that existing paint remover exists, according to the principle of " similar mixing " and coating adhesion mechanism and coating process, provide a kind of low volatility, low toxicity or nontoxic, to matrix safety, to operator or environmentally friendly, do not need the ABS plastic paint remover that heating, paint stripping rate are fast, can be recycled while using, and the using method of this paint remover.
Addressing the above problem adopted technical scheme is that it is made by the raw material of following quality per distribution ratio:
Above-mentioned ABS plastic paint remover is preferably made by the raw material of following quality per distribution ratio:
Above-mentioned main solvent is the mixed solution of phenylcarbinol and butylacetate, and wherein phenylcarbinol is that 60wt.%~80wt.%, butylacetate are 20wt.%~40wt.%, and preferably phenylcarbinol is that 74wt.%~80wt.%, butylacetate are 20wt.%~26wt.%.
The preparation method of above-mentioned ABS plastic paint remover is: according to the quality per distribution ratio of above-mentioned raw materials, phenylcarbinol and butylacetate are mixed, then add successively hydrogen peroxide, Sodium dodecylbenzene sulfonate, Walocel MT 20.000PV and deionized water, stir, finally add paraffin to 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 is soaked in acetic acid, and 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, during use, do not need heating, can be used for removing the paint film of shades of colour and kind, as epoxy-based lacquers, alkyd paint, acrylic paint, polyurethane paint etc., and can reduce to greatest extent the degree of injury to ABS plastic, make that this paint remover has advantages of that paint stripping rate is fast, low toxicity, low volatility, 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 embodiment.
Embodiment 1
The preparation ABS plastic paint remover 1000g of the present invention of take is example, and raw material is composed as follows:
Its preparation method is: 408g phenylcarbinol and 102g butylacetate are mixed, then add successively 150g hydrogen peroxide, 80g Sodium dodecylbenzene sulfonate, 40g Walocel MT 20.000PV and 200g deionized water, stir, finally add 20g paraffin to prevent solvent evaporates to seal top layer, obtain ABS plastic paint remover.
Embodiment 2
The preparation ABS plastic paint remover 1000g of the present invention of take is example, and raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 3
The preparation ABS plastic paint remover 1000g of the present invention of take is example, and raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 4
The preparation ABS plastic paint remover 1000g of the present invention of take is example, and raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 5
The preparation ABS plastic paint remover 1000g of the present invention of take is example, and raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 6
The preparation ABS plastic paint remover 1000g of the present invention of take is example, and raw material is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 7
ABS plastic is soaked in acetic acid, and supersound washing 5 minutes, then takes out, and is soaked in ABS plastic paint remover supersound washing 15 minutes.
The depainting efficiency (being that in the specified time, paint film expands and wrinkling area percent) of measuring paint remover according to national standard HG/T2881-1997 < < paint remover depainting efficiency test method > >, depainting efficiency calculation formula is as follows:
Test-results is in Table 1.
The depainting efficiency of table 1 paint remover of the present invention
Paint remover |
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Embodiment 4 |
Embodiment 5 |
Embodiment 6 |
Depainting efficiency |
90% |
75% |
80% |
75% |
70% |
80% |
In order to determine optimum material proportion of the present invention, contriver has carried out a large amount of laboratory study tests, and various test situation are as follows:
1, the selection of main solvent and solubility promoter
Select respectively different solubility promoter (15g) and main solvent (50g), specifically in Table 2~4, then mix 8g Sodium dodecylbenzene sulfonate, 4g Walocel MT 20.000PV, 2g paraffin and 20g deionized water, compositely go out solubleness and 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.
The impact on paint removing effect of table 2 main solvent and solubility promoter
From table 2, in double solvents solubleness, be under 9.0,10.0,11.0 three kinds of different situations, take the mixed solution of phenylcarbinol and butylacetate as main solvent, hydrogen peroxide are during as solubility promoter, paint removing effect is relatively better, wherein double solvents solubleness is 11.0 o'clock, and in main solvent, phenylcarbinol accounts for 71%, butylacetate is while accounting for 29%, and paint removing effect is best, within 15 minutes, can take off the paint film of 80% left and right, and minimum to base material nocuity.
The impact on paint removing effect of table 3 main solvent and solubility promoter
From table 3, the mixed solution of methyl-sulphoxide, ethylene glycol monobutyl ether, Virahol of take is main solvent, cannot be made into solubleness and be 9.0 double solvents.Under 10.0,11.0 two kinds of different situations of main solvent solubleness, take respectively acetic acid, hydrogen peroxide, phenol is solubility promoter, and paint removing effect is all poor.
The impact on paint removing effect of table 4 main solvent and solubility promoter
From table 4, take respectively acetic acid, hydrogen peroxide, phenol is solubility promoter, and the mixed solution of dimethylbenzene and propyl carbinol of take is main solvent, in main solvent solubleness, is that under 9.0,10.0,11.0 three kinds of different situations, paint removing effect is obviously not ideal enough.
Comprehensive above-mentioned test, it is main solvent that the present invention selects to take the mixed solution of phenylcarbinol and butylacetate, take hydrogen peroxide as solubility promoter.
2, determine phenylcarbinol and butylacetate proportioning
Adopting hydrogen peroxide (15g) is solubility promoter, with the mixed solution of phenylcarbinol and butylacetate be main solvent (50g), then mix 8g Sodium dodecylbenzene sulfonate, 3g Walocel MT 20.000PV, 2g paraffin and 20g deionized water, composite respectively to go out solubleness be 10.5,10.7,10.9,11.0,11.2,11.5 double solvents, specifically in Table 5.By first supersound washing 5 minutes in acetic acid of ABS plastic, be then soaked in double solvents supersound washing 15 minutes.Test-results is in Table 5.
Table 5 phenylcarbinol and the impact of butylacetate proportioning on paint removing effect
From table 5, the solubleness of double solvents paint removing effect in 10.5~11.5 scopes is all better, within 15 minutes, can take off at least paint film of half, wherein the solubleness of double solvents is 11.0~11.5 o'clock, paint removing effect is better, and therefore main solvent of the present invention is preferably comprised of 74wt.%~80wt.% phenylcarbinol and 20wt.%~26wt.% butylacetate.
3, stripping method determines
Scheme 1: get each two, the coating agent which has to be dissolved in alcohol before use of black, red, blue, yellow, be soaked in the paint remover of embodiment 1 preparation, at the uniform velocity stir 15 minutes.
Scheme 2: get each two, the coating agent which has to be dissolved in alcohol before use of black, red, blue, yellow, first soak in acetic acid 5 minutes, be then soaked in the paint remover of embodiment 1 preparation, stir 15 minutes.
Scheme 3: get each two, the coating agent which has to be dissolved in alcohol before use of black, red, blue, yellow, first supersound washing 5 minutes in acetic acid, then the paint remover supersound washing of embodiment 1 preparation 15 minutes.
Scheme 4: get each two, the coating agent which has to be dissolved in alcohol before use of black, red, blue, yellow, first supersound washing 10 minutes in acetic acid, then the paint remover supersound washing of embodiment 1 preparation 20 minutes.
Test-results shows, the paint removing effect of scheme 3 is best, in acetic acid, supersound washing can be taken off the coating agent which has to be dissolved in alcohol before use that paint film is thinner in 5 minutes completely, then the thicker coating agent which has to be dissolved in alcohol before use of paint film of can not taking off for 15 minutes in the paint remover supersound washing of embodiment 1 preparation, and very little to the injury tolerance of ABS plastic base material.And depainting overlong time in scheme 4 is larger for the damage of base material, therefore will not take.
In order to prove beneficial effect of the present invention, contriver adopts the paint remover of embodiment 1, according to the method for embodiment 7, different types of paint film is carried out to depainting, and test-results is in Table 6.
The depainting efficiency of the ABS plastic paint remover of table 6 embodiment 1 preparation to different paint films
Paint film kind |
Urethane resin |
Acrylic resin |
Polymethylmethacrylate |
Epoxy resin |
Synolac |
Depainting 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 can effectively remove other various paint films, simultaneously test-results show its to the base material of the paint film of other shades of colour kinds all without obvious corrosion phenomenon.