CN107236353A - A kind of ABS plastic paint stripper - Google Patents
A kind of ABS plastic paint stripper Download PDFInfo
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- CN107236353A CN107236353A CN201710510654.2A CN201710510654A CN107236353A CN 107236353 A CN107236353 A CN 107236353A CN 201710510654 A CN201710510654 A CN 201710510654A CN 107236353 A CN107236353 A CN 107236353A
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- abs plastic
- paint stripper
- plastic paint
- depainting
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Classifications
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- 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
-
- 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
-
- 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
- C09D9/005—Chemical paint or ink removers containing organic solvents
Abstract
The invention discloses a kind of ABS plastic paint stripper, belong to depainting technical field.Small molecule main solvent, water and cosolvent are stirred and mixed by the present invention, add compound surfactant, high-speed stirred mixes to obtain mixed emulsion, activator, tunning, corrosion inhibiter, thickener and defoamer are added in mixed emulsion again, after disperseing at a high speed, vacuum defoamation, produces ABS plastic paint stripper；Described tunning is to stir podocarpus root soil with water to mix to obtain Soil Slurry, shaken cultivation after being mixed with liquid culture medium, then is made through filtering, concentration.The beneficial effects of the invention are as follows：ABS plastic paint stripper paint removal efficiency of the present invention is high, and volatility is small, and depainting amount is big, and the depainting time is short, is worthy to be popularized and uses.
Description
Technical field
The present invention relates to a kind of ABS plastic paint stripper, belong to depainting technical field.
Background technology
The quality of plating and application and the process control being surface-treated are closely related, are especially required more in frosting coating
Plus it is strict, it is careless slightly, it will result in waste product, it is necessary to take off and coat again.In use, frosting coating can be damaged
Wound or gradually aging are sprayed again, it is necessary to first thoroughly remove outmoded or damaged coating, otherwise will be influenceed after workpiece recoating
The quality of film, depainting is the surface pre-treating process after film destruction again before application.Frosting coating it is main by resin,
Auxiliary material, pigment, diluent and other auxiliary agents etc. are constituted, and resin is main film forming matter, including natural resin, synthetic resin
Deng, film forming matter must just be destroyed by wanting depainting, allow it to be swelled, and disengage it from plastic basis material surface, reach the purpose of depainting, but
It is required that coating can only be dissolved, without plastic bottom material can be damaged.Although experiment finds that the organic solvents such as dimethylbenzene, toluene have to coating
Good solvability, but it is also more serious for the destruction of plastic basis material.Therefore, people have researched and developed a kind of plastics and taken off
Paint agent.
Plastics paint stripper is the product for showing plastics depainting, be widely used in processing that each spray painting factory defect workpiece does over again and
The depainting of the working of plastics such as fixtures for painting, is particularly suitable for use in pure ABS（Acrylonitrile-butadiene-styrene copolymer）The baking vanish on surface,
The removing of the coatings such as polyester, acrylic acid, polyurethane.Conventional paint stripper is divided to the organic and inorganic major class of paint stripper two.Inorganic depainting
Agent is mostly hydroxide sodium form paint stripper, and this kind of paint stripper cost is relatively low and using safety, but has the disadvantage that the depainting time is longer.For
The defect is reduced, researcher is improved hydroxide sodium form paint stripper, such as Chinese Patent Application No.
CN200610048278.1 discloses a kind of alkali paint remover and preparation method thereof, and the component of the alkali paint remover is according to weight hundred
Divide than meter, alkylol 64~96%, sodium hydroxide 3.1~31%, surfactant 0.1~5%, the corrosion inhibitor 0.01 of phenyl substitution
~0.1%.The alkali paint remover depainting time is short, but depainting amount is small.Organic paint stripper is mainly dichloromethane type paint stripper, such as
Chinese Patent Application No. CN201010240366.8 discloses a kind of paint stripper, the group for the weight percent proportioning that the paint stripper includes
It is divided into：Dichloromethane 60~80%, formic acid 10~20%, ethanol 5~15%, methanol 3~8%.Although this kind of paint stripper is more de- than inorganic
The corrosivity for painting agent is small, but its is volatile, and paint removal efficiency is low.
It would therefore be highly desirable to develop, a kind of depainting time is short, depainting amount is big, paint removal efficiency is high and not volatile plastics depainting
Agent.
The content of the invention
The technical problems to be solved by the invention：For traditional paint stripper depainting time length, depainting amount be small, paint removal efficiency
It is low, and there is provided a kind of ABS plastic paint stripper for volatile drawback.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of ABS plastic paint stripper, is made up of the raw material of following parts by weight：60~80 parts of small molecule main solvents, 80~100
Part water, 10~20 parts of cosolvents, 8~10 parts of activators, 10~20 parts of tunnings, 1~3 part of compound surfactant, 2~3
Part corrosion inhibiter, 3~5 parts of thickeners and 1~3 part of defoamer；
The specific preparation process of described tunning is：It is 1 in mass ratio:20~1:30 stir podocarpus root soil and water
Mixing, obtains Soil Slurry, then by gained Soil Slurry and liquid culture medium is 1 by volume:8~1:10 mixing, then
48~50h of shaken cultivation in shaking table, then through filtering, concentration, produce tunning；
Described ABS plastic paint stripper concrete configuration step is as follows：
（1）Small molecule main solvent, water and cosolvent are stirred and mixed, compound surfactant is added, high-speed stirred mixing is obtained
Mixed emulsion；
（2）Activator, tunning, corrosion inhibiter, thickener and defoamer are added in above-mentioned mixed emulsion, high speed scattered 1~
After 3h, vacuum defoamation produces ABS plastic paint stripper.
Described small molecule main solvent is made up of the raw material of following parts by weight：60~80 parts of phenmethylols, 1~3 part of second
Acetoacetic ester, 20~30 parts of 1-METHYLPYRROLIDONEs.
Described cosolvent is one kind in N,N-dimethylformamide, acetone or natural fatty alcohol.
Described activator is that Peracetic acid, mass fraction are one kind or two in 10% hydrogen peroxide, citric acid or benzoic acid
Kind.
Described compound surfactant is obtained by the raw material compounding of following parts by weight：10~20 parts of polyoxyethylene nonylphenol ethers-
10th, 20~30 parts of neopelexes, 10~20 parts of cetyl trimethylammonium bromides.
Described corrosion inhibiter is one kind in thiocarbamide, methenamine or BTA.
Described thickener is in sodium carboxymethylcellulose, ethyl cellulose, methylcellulose, polyvinyl alcohol or guar gum
One kind.
Described defoamer is one kind in dimethyl silicone polymer or polyoxypropylene ethylene oxide glycerin ether.
Described liquid culture medium is mixed by the raw material of following parts by weight：900~1000 parts of water, 2~4 parts of sulphur
Sour ammonium, 3~5 parts of dipotassium hydrogen phosphates, 1~3 part of magnesium sulfate, 10~15 parts of frankincense natural resins and 2~4 parts of sodium chloride.
Described shaken cultivation condition is：35~37 DEG C of cultivation temperature, 200~300r/min of shaking speed.
The present invention is compared with other method, and advantageous effects are：
（1）The present invention is microbe-derived using podocarpus root soil, because being rich in natural resin, podocarpus in arhat pine tree leaf
Microorganism has stronger degradation capability, therefore its metabolite to arhat pine tree leaf through prolonged adaptation in root soil
Have certain degradation property to natural resin, in its metabolite main function for extracellular microbial exoenzyme, resin is degraded and had
There is selectivity, the present invention is exactly based on the metabolite using microorganism, can play molten to the lacquer type organic coating that ABS plastic surface is coated
Swollen, infiltration and certain degradation, so as to destroy the adhesion of paint film and ABS plastic base material, reach the effect of attachment depainting,
So as to reduce the depainting time, paint removal efficiency is improved, and metabolite activity is high, substantially belongs to catalyst, consumption is small, can follow
Ring is used；
（2）The present invention is acted on tunning and coordinated by adding a small amount of activator, the resin that can be coated to ABS plastic surface
Paint plays activation, rolls the paint film protective layer being swelled after softening, so that the small molecule solvent rapid osmotic in product
Into between paint film and base material, while accelerating depainting speed, effectively improve depainting amount, and product of the present invention is aqueous depainting
Agent, volatility of raw material is low, can be prevented effectively from the product loss caused by solvent volatilizees during use.
Embodiment
Take podocarpus root topsoil, and be 1 in mass ratio by gained soil and water:20~1:30 pour into beaker
In, with glass bar stirring 10~15min of mixing, Soil Slurry is obtained, then gained Soil Slurry and liquid culture medium are pressed into body
Product is than being 1:8~1:Pour into triangular flask, triangular flask is placed in shaking table after 10 mixing then, be 35~37 DEG C in temperature, turn
Under the conditions of speed is 200~300r/min, 48~50h of constant-temperature shaking culture, then by material filtering in triangular flask, obtain filtrate, by institute
Obtain filtrate and be concentrated into the 15~20% of filtrate original volume, obtain tunning；Then count, take successively 60~80 parts small by weight
Molecule main solvent, 80~100 parts of water, 10~20 parts of cosolvents, 8~10 parts of activators, 10~20 parts of tunnings, 1~3 part is multiple
With surfactant, 2~3 parts of corrosion inhibiter, 3~5 parts of thickeners and 1~3 part of defoamer, by small molecule main solvent, water and hydrotropy
Agent is poured into batch mixer, with 600~800r/min rotating speeds stirring 45~60min of mixing, then the addition compounding surface into batch mixer
Activating agent, then lifting speed of agitator is to 1200~1500r/min, and high-speed stirred mixes 1~3h, mixed emulsion obtained, then at height
Under fast stirring, activator, tunning, corrosion inhibiter, thickener and defoamer, knot to be added are sequentially added into batch mixer
Beam, continues 1~3h of high-speed stirred, after high-speed stirred terminates, vacuum defoamation produces ABS plastic paint stripper.Described small molecule
Main solvent is made up of the raw material of following parts by weight：60~80 parts of phenmethylols, 1~3 part of ethyl acetate, 20~30 parts of N- methyl
Pyrrolidones.Described cosolvent is one kind in N,N-dimethylformamide, acetone or natural fatty alcohol.Described activator
It is one or both of 10% hydrogen peroxide, citric acid or benzoic acid for Peracetic acid, mass fraction.Live on described compounding surface
Property agent be by following parts by weight raw material compounding obtain：10~20 parts of emulsifier op-10s, 20~30 parts of DBSAs
Sodium, 10~20 parts of cetyl trimethylammonium bromides.Described corrosion inhibiter is one in thiocarbamide, methenamine or BTA
Kind.Described thickener is one in sodium carboxymethylcellulose, ethyl cellulose, methylcellulose, polyvinyl alcohol or guar gum
Kind.Described defoamer is one kind in dimethyl silicone polymer or polyoxypropylene ethylene oxide glycerin ether.Described liquid training
Foster base is mixed by the raw material of following parts by weight：900~1000 parts of water, 2~4 parts of ammonium sulfate, 3~5 parts of phosphoric acid hydrogen two
Potassium, 1~3 part of magnesium sulfate, 10~15 parts of frankincense natural resins and 2~4 parts of sodium chloride.
Example 1
Take podocarpus root topsoil, and be 1 in mass ratio by gained soil and water:20 pour into beaker, use glass bar
Stirring mixing 10min, obtains Soil Slurry, then by gained Soil Slurry and liquid culture medium is 1 by volume:After 8 mixing
Pour into triangular flask, then triangular flask is placed in shaking table, be 35 DEG C in temperature, rotating speed is under the conditions of 200r/min, constant temperature shakes
Culture 48h is swung, then by material filtering in triangular flask, obtains filtrate, gained filtrate is concentrated into the 15% of filtrate original volume, must be fermented
Product；Then count by weight, 60 parts of small molecule main solvents, 80 parts of water, 10 parts of cosolvents, 8 parts of activators, 10 parts are taken successively
Tunning, 1 part of compound surfactant, 2 parts of corrosion inhibiter, 3 parts of thickeners and 1 part of defoamer, by small molecule main solvent, water and
Cosolvent is poured into batch mixer, with 600r/min rotating speeds stirring mixing 45min, then the addition compounding surface-active into batch mixer
Agent, then lifting speed of agitator is to 1200r/min, and high-speed stirred mixes 1h, obtains mixed emulsion, under high-speed stirred state,
Activator, tunning, corrosion inhibiter, thickener and defoamer are sequentially added into batch mixer, end to be added continues high-speed stirring
1h is mixed, after high-speed stirred terminates, vacuum defoamation produces ABS plastic paint stripper.Described small molecule main solvent is by following heavy
Measure the raw material composition of number：60 parts of phenmethylols, 1 part of ethyl acetate, 20 parts of 1-METHYLPYRROLIDONEs.Described cosolvent is N, N-
Dimethylformamide.Described activator is Peracetic acid.Described compound surfactant is by the original of following parts by weight
Material compounding is obtained：10 parts of emulsifier op-10s, 20 parts of neopelexes, 10 parts of cetyl trimethylammonium bromides.It is described
Corrosion inhibiter be thiocarbamide.Described thickener is sodium carboxymethylcellulose.Described defoamer is dimethyl silicone polymer.It is described
Liquid culture medium be to be mixed by the raw material of following parts by weight：900 parts of water, 2 parts of ammonium sulfate, 3 parts of dipotassium hydrogen phosphates, 1
Part magnesium sulfate, 10 parts of frankincense natural resins and 2 parts of sodium chloride.
Example 2
Take podocarpus root topsoil, and be 1 in mass ratio by gained soil and water:25 pour into beaker, use glass bar
Stirring mixing 13min, obtains Soil Slurry, then by gained Soil Slurry and liquid culture medium is 1 by volume:After 9 mixing
Pour into triangular flask, then triangular flask is placed in shaking table, be 36 DEG C in temperature, rotating speed is under the conditions of 250r/min, constant temperature shakes
Culture 49h is swung, then by material filtering in triangular flask, obtains filtrate, gained filtrate is concentrated into the 18% of filtrate original volume, must be fermented
Product；Then count by weight, 70 parts of small molecule main solvents, 90 parts of water, 15 parts of cosolvents, 9 parts of activators, 15 parts are taken successively
Tunning, 2 parts of compound surfactants, 3 parts of corrosion inhibiter, 4 parts of thickeners and 2 parts of defoamers, by small molecule main solvent, water and
Cosolvent is poured into batch mixer, with 700r/min rotating speeds stirring mixing 52min, then the addition compounding surface-active into batch mixer
Agent, then lifting speed of agitator is to 1300r/min, and high-speed stirred mixes 2h, obtains mixed emulsion, under high-speed stirred state,
Activator, tunning, corrosion inhibiter, thickener and defoamer are sequentially added into batch mixer, end to be added continues high-speed stirring
2h is mixed, after high-speed stirred terminates, vacuum defoamation produces ABS plastic paint stripper.Described small molecule main solvent is by following heavy
Measure the raw material composition of number：70 parts of phenmethylols, 2 parts of ethyl acetate, 25 parts of 1-METHYLPYRROLIDONEs.Described cosolvent is third
Ketone.Described activator is that mass fraction is 10% hydrogen peroxide.Described compound surfactant is by the original of following parts by weight
Material compounding is obtained：15 parts of emulsifier op-10s, 25 parts of neopelexes, 15 parts of cetyl trimethylammonium bromides.It is described
Corrosion inhibiter be methenamine.Described thickener is ethyl cellulose.Described defoamer is that polyoxypropylene ethylene oxide is sweet
Oily ether.Described liquid culture medium is mixed by the raw material of following parts by weight：950 parts of water, 3 parts of ammonium sulfate, 4 parts of phosphoric acid
Hydrogen dipotassium, 2 parts of magnesium sulfate, 13 parts of frankincense natural resins and 3 parts of sodium chloride.
Example 3
Take podocarpus root topsoil, and be 1 in mass ratio by gained soil and water:30 pour into beaker, use glass bar
Stirring mixing 15min, obtains Soil Slurry, then by gained Soil Slurry and liquid culture medium is 1 by volume:After 10 mixing
Pour into triangular flask, then triangular flask is placed in shaking table, be 37 DEG C in temperature, rotating speed is under the conditions of 300r/min, constant temperature shakes
Culture 50h is swung, then by material filtering in triangular flask, obtains filtrate, gained filtrate is concentrated into the 20% of filtrate original volume, must be fermented
Product；Then count by weight, 80 parts of small molecule main solvents, 100 parts of water, 20 parts of cosolvents, 10 parts of activators, 20 are taken successively
Part tunning, 3 parts of compound surfactants, 3 parts of corrosion inhibiter, 5 parts of thickeners and 3 parts of defoamers, by small molecule main solvent, water
Poured into cosolvent in batch mixer, with 800r/min rotating speeds stirring mixing 60min, then the addition compounding surface-active into batch mixer
Agent, then lifting speed of agitator is to 1500r/min, and high-speed stirred mixes 3h, obtains mixed emulsion, under high-speed stirred state,
Activator, tunning, corrosion inhibiter, thickener and defoamer are sequentially added into batch mixer, end to be added continues high-speed stirring
3h is mixed, after high-speed stirred terminates, vacuum defoamation produces ABS plastic paint stripper.Described small molecule main solvent is by following heavy
Measure the raw material composition of number：80 parts of phenmethylols, 3 parts of ethyl acetate, 30 parts of 1-METHYLPYRROLIDONEs.Described cosolvent is natural
Fatty alcohol.Described activator is citric acid.Described compound surfactant is compounded by the raw material of following parts by weight
Arrive：20 parts of emulsifier op-10s, 30 parts of neopelexes, 20 parts of cetyl trimethylammonium bromides.Described corrosion inhibiter
For BTA.Described thickener is polyvinyl alcohol.Described defoamer is dimethyl silicone polymer.Described liquid culture
Base is mixed by the raw material of following parts by weight：1000 parts of water, 4 parts of ammonium sulfate, 5 parts of dipotassium hydrogen phosphates, 3 parts of magnesium sulfate,
15 parts of frankincense natural resins and 4 parts of sodium chloride.
Reference examples：The ABS plastic paint stripper of Shanghai company production.
The ABS plastic paint stripper of ABS plastic paint stripper obtained by above-described embodiment and reference examples is detected, specific detection
It is as follows：
1st, paint removal efficiency is tested：The plastic part base material for needing depainting is immersed in the container for filling paint stripper, depainting liquid temperature is controlled
Spend for 40~60 DEG C, 30min is soaked, by HG/T 2881-1997《Paint removal efficiency method of testing》It is measured；
2nd, volatility is determined：At ambient temperature, 50g paint strippers are poured into glass dish, every 0.5h paint stripper of survey
Quality, calculates its residual mass percentage, judges the height of volatility；
3rd, depainting measures fixed：Take 1L paint strippers to pour into container, the plastic part base material for needing depainting is put into paint stripper and soaked simultaneously
Observation, untill paint stripper can not take off paint film, determines depainting amount；
4th, depainting timing：The plastic part base material for needing depainting is immersed in the container for filling paint stripper, base material paint film is observed
Be swelled dropping situations and record the time.
As a result as shown in Table 1.
Table one：
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Paint removal efficiency/% | 93 | 95 | 97 | 86 |
| Volatility | 2h, volatility is 4.6% | 2h, volatility is 3.5% | 2h, volatility is 2.3% | 2h, volatility is 7% |
| Depainting amount/（cm2/L） | 530 | 555 | 578 | 500 |
| The depainting time/min | 9 | 6 | 7 | 20 |
As seen from the above table, ABS plastic paint stripper paint removal efficiency of the present invention is high, and volatility is small, and depainting amount is big, and the depainting time is short.
Claims (10)
1. a kind of ABS plastic paint stripper, it is characterised in that：It is made up of the raw material of following parts by weight：60~80 parts of small molecules
Main solvent, 80~100 parts of water, 10~20 parts of cosolvents, 8~10 parts of activators, 10~20 parts of tunnings, 1~3 part of compounding table
Face activating agent, 2~3 parts of corrosion inhibiter, 3~5 parts of thickeners and 1~3 part of defoamer；
The specific preparation process of described tunning is：It is 1 in mass ratio:20~1:30 stir podocarpus root soil and water
Mixing, obtains Soil Slurry, then by gained Soil Slurry and liquid culture medium is 1 by volume:8~1:10 mixing, then
48~50h of shaken cultivation in shaking table, then through filtering, concentration, produce tunning；
Described ABS plastic paint stripper concrete configuration step is as follows：
（1）Small molecule main solvent, water and cosolvent are stirred and mixed, compound surfactant is added, high-speed stirred mixing is obtained
Mixed emulsion；
（2）Activator, tunning, corrosion inhibiter, thickener and defoamer are added in above-mentioned mixed emulsion, high speed scattered 1~
After 3h, vacuum defoamation produces ABS plastic paint stripper.
2. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described small molecule main solvent be by
The raw material composition of following parts by weight：60~80 parts of phenmethylols, 1~3 part of ethyl acetate, 20~30 parts of 1-METHYLPYRROLIDONEs.
3. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described cosolvent is N, N- diformazans
One kind in base formamide, acetone or natural fatty alcohol.
4. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described activator be Peracetic acid,
Mass fraction is one or both of 10% hydrogen peroxide, citric acid or benzoic acid.
5. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described compound surfactant is
Obtained by the raw material compounding of following parts by weight：10~20 parts of emulsifier op-10s, 20~30 parts of neopelexes, 10
~20 parts of cetyl trimethylammonium bromides.
6. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described corrosion inhibiter is thiocarbamide, Wu Luo
One kind in tropine or BTA.
7. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described thickener is that carboxymethyl is fine
One kind in the plain sodium of dimension, ethyl cellulose, methylcellulose, polyvinyl alcohol or guar gum.
8. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described defoamer is poly dimethyl
One kind in siloxanes or polyoxypropylene ethylene oxide glycerin ether.
9. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described liquid culture medium be by with
The raw material of lower parts by weight is mixed：900~1000 parts of water, 2~4 parts of ammonium sulfate, 3~5 parts of dipotassium hydrogen phosphates, 1~3 part of sulphur
Sour magnesium, 10~15 parts of frankincense natural resins and 2~4 parts of sodium chloride.
10. a kind of ABS plastic paint stripper according to claim 1, it is characterised in that：Described shaken cultivation condition is：
35~37 DEG C of cultivation temperature, 200~300r/min of shaking speed.
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