CN108285683A - A kind of environmentally-friendly water-based paint stripper - Google Patents
A kind of environmentally-friendly water-based paint stripper Download PDFInfo
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- CN108285683A CN108285683A CN201810363628.6A CN201810363628A CN108285683A CN 108285683 A CN108285683 A CN 108285683A CN 201810363628 A CN201810363628 A CN 201810363628A CN 108285683 A CN108285683 A CN 108285683A
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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
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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
- C09D9/005—Chemical paint or ink removers containing organic solvents
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Abstract
The invention discloses a kind of environmentally-friendly water-based paint strippers, belong to depainting technical field.The present invention is by solvent, water and cosolvent are placed in reaction kettle, under the conditions of rotating speed is 300~500r/min, it is stirred 40~60min, then to emulsifier is added in reaction kettle, under the conditions of rotating speed is 600~800r/min, it is stirred 40~60min, the accelerating agent into reaction kettle then is added, tea extract, zymotic fluid, corrosion inhibiter, thickener, antifoaming agent and sodium thiosulfate, under the conditions of rotating speed is 600~800r/min, after being stirred 40~60min, vacuum defoamation is to get environmentally-friendly water-based paint stripper.Environmentally-friendly water-based paint stripper provided by the invention has excellent paint removing effect and depainting amount is big.
Description
Technical field
The invention discloses a kind of environmentally-friendly water-based paint strippers, belong to depainting technical field.
Background technology
Coating can protect and decorative article, but in use, and film can be damaged or gradual aging, Huo Zheyou
It reprocesses, updates in aesthetic reason needs.When for household electrical appliance, mechanical equipment, furniture, the applications such as car and boat or repairing, all
It needs to remove outmoded or damaged coating, then carries out application.In aircraft industry, no matter civilian or military aircraft, for U.S.
Sight and security needs also need regular depainting, finishing to return new.
Taking off for old paint film removes, and according to different requirements, different base materials, different coating has different methods, wherein making
It is one of most common method with paint stripper.Paint stripper also known as move back paint agent, paint scrubber or paint remover.Current paint stripper, according to
The difference of its component, performance is also variant, however its depainting mechanism is permeated, is swollen then substantially dependent on dissolving, stripping
From a series of physical, chemical comprehensive effect and the effect such as reaction.
In order to meet the requirement of various products protection and decoration, external coating is carried out to it.But the paint film of coating is in length
During phase use, it can be destroyed by the erosion of various corrosive mediums and mechanical damage, aging occur, be cracked, peeling and fallen off
Phenomena such as, cause paint film to lose protection decoration function, if will application again, need to remove old paint film.Remove old paint
Film, past attempts are adopted with machinery method, such as are rooted out by hand with scraper, but this method is not only time-consuming and laborious, but also easy pair
Matrix surface causes mechanical damage, especially more difficult to the component that some geometries are more complicated, therefore just produces
The requirement of old paint film is removed using paint stripper.
Old paint film is typically thermoplastic resin and room temperature crosslinking curing resin, such as alkyd resin, nitrate paint, epoxy resin,
The paint film of polyurethanes paint etc., these polymer can be dissolve or swell in organic solvent appropriate, and these polymerize
In object molecule all contain certain active function groups, such as ester bond, ehter bond, amido bond etc., heat acid or alkali under the action of easily occur
Acidolysis, the chemical reactions such as alkaline hydrolysis, leads to its molecular chain rupture, and therefore, old paint film is easy de- by organic solvent paint stripper or alkalinity
Agent is painted, acid paint stripper is removed.
The effect of paint stripper is exactly the binding force of the space structure or paint film and base material that destroy paint film.Solvent in paint stripper
In molecule infiltration to the molecule segment of paint film polymer, paint film dissolving;Or polymer macromolecule volume increases, and generates internal stress,
When internal stress is enough to destroy the bonding force of paint film and base material, paint film is just disposed of.Paint stripper is divided into two classes:One kind is alkali
Solution paint stripper, another kind of is organic solvent paint stripper.In general, oil base enamelled coating is mostly used alkaline solution paint stripper, synthesis
Resin enamelled coating is mostly used organic solvent and removes.It is used although this two classes paint stripper is all a large amount of always, aqueous slkali paint stripper is to human body
And be harmful to by de- substrate, and solvent stripper high poison, it is inflammable, therefore its application is affected and limits.With organic solvent depainting
It compares, aqueous slkali paint stripper is at low cost, safe to use, small to human body damage, but to be heated when use, and to have depainting slot
And rinse bath, there is steam heater etc. in slot.The main component of aqueous slkali paint stripper is sodium hydroxide, sodium carbonate, phosphoric acid
Sodium etc..The advantages of organic solvent paint stripper:Efficient, construction is simple small to metal erosion when room temperature need not increase equipment;
Disadvantage:It is toxic, volatile, easy firing and of high cost.Organic solvent depainting is to expand old paint film with it, is permeated, softening,
Stripping has burnable and 2 kinds of flame retardant type to remove old paint film.Burnable organic paint stripper is suitable for nitrate paint and alkyd paint
Depainting, main component is benzene and acetone.The organic paint stripper of flame retardant type be suitable for removing epoxy-based lacquers, organosilicon coating, amine baking varnish,
Synthetic resin coating, the used paint layers such as asphalt caulk, main component is dichloromethane.
There is also the problems that paint removing effect is bad and depainting amount is small for paint stripper traditional at present, therefore also need to grind it
Study carefully.
Invention content
The present invention solves the technical problem of：It is bad and depainting amount is small asks for traditional paint stripper paint removing effect
Topic, provides a kind of environmentally-friendly water-based paint stripper.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of environmentally-friendly water-based paint stripper, is made of the raw material of following parts by weight：60~80 parts of solvents, 80~100 parts of water,
10~20 parts of cosolvents, 8~10 parts of accelerating agents, 8~10 parts of tea extracts, 20~30 portions of zymotic fluids, 1~3 part of emulsifier, 2
~3 parts of corrosion inhibiter, 3~5 parts of thickeners, 1~3 part of antifoaming agent, 1~3 part of sodium thiosulfate；
The preparation process of the environmentally-friendly water-based paint stripper is：
（1）Each raw material is weighed by raw material composition；
（2）By solvent, water and cosolvent are stirred, and emulsifier for mixing mixing is then added, accelerating agent is then added, tealeaves carries
Liquid, zymotic fluid, corrosion inhibiter, thickener, antifoaming agent and sodium thiosulfate mixing are taken, vacuum defoamation is to get environmentally-friendly water-based depainting
Agent.
The solvent is any one of benzyl alcohol, vinyl ethyl ether or N-Methyl pyrrolidone.
The cosolvent is methanol, butanol, isopropanol, any one in ethylene glycol ethyl ether or cyclohexanone.
The accelerating agent is citric acid, any one in malic acid or benzoic acid.
The preparation process of the zymotic fluid is：By pine nut and acorn in mass ratio 1：1 mixed grinding, obtains mixture, presses
Parts by weight meter, by 10~20 parts of rubber bark beetles, 10~20 parts of pine moths, 20~30 parts of water mixing are squeezed the juice, and mixing juice is obtained,
It counts in parts by weight, 20~30 parts of mixing juices, 10~20 parts of mixtures, 3~5 parts of whiterot fungis, 3~5 parts of biogas slurries, 8~10 parts
Glucose solution mixed fermentation, filtering, obtains zymotic fluid.
The emulsifier is alkyl phenol polyoxyethylene ether, any one in lauryl sodium sulfate or Tween-60.
The corrosion inhibiter is phenylpropyl triazole, methyl-triazole, any one in thiazole or imidazoles.
The thickener is sodium carboxymethylcellulose, ethyl cellulose, methylcellulose, in polyvinyl alcohol or guar gum
It is a kind of.
The antifoaming agent is one kind in dimethyl silicone polymer or polyoxypropylene ethylene oxide glycerin ether.
The beneficial effects of the invention are as follows：
The present invention is by adding zymotic fluid, using the digestive ferment in insect bodies, because containing a large amount of digestive ferment, digestion in insect bodies
Enzyme can decompose natural resin, have stronger degradation capability to natural resin, in use, zymotic fluid is oozed with solvent
Thoroughly in paint film polymer molecule segment, due to containing carboxy-lesterase in pine moth body, carboxy-lesterase can be effectively catalyzed and water
Ester bond, amido bond and the old paint film of thioester bond are contained in solution part, and solvent is assisted to be spread in paint film, can be to the tree on steel and iron parts surface
Fat paint plays swelling, infiltration and certain degradation, is preferably swollen paint film, and the increase of polymer macromolecule volume generates planted agent
Power destroys the space structure of paint film and the binding force of base material, and to play excellent paint removing effect, and depainting amount is big, the present invention
Natural materials are derived from using raw material, will not be caused damages to biology and environment, safety and environmental protection.
Specific implementation mode
By pine nut and acorn in mass ratio 1：1 is placed in 30~50min of mixed grinding in mortar, obtains mixture, by weight
Number meter, by 10~20 parts of rubber bark beetles, 10~20 parts of pine moths, 20~30 parts of water are placed in mixing in juice extractor and squeeze the juice, and obtain
Juice is mixed, is counted in parts by weight, juice, 10~20 parts of mixtures, 3~5 parts of whiterot fungis, 3~5 parts of natural ponds are mixed by 20~30 parts
Liquid, the glucose solution that 8~10 parts of mass fractions are 0.3~0.5% are placed in fermentation cauldron, are 28~35 DEG C in temperature, rotating speed is
Under the conditions of 200~300r/min, mixed fermentation 3~5 days obtains fermenting mixture, then fermenting mixture is filtered, and obtains zymotic fluid；
It counts in parts by weight, by Longjing tea and water in mass ratio 1：20~1：30 are placed in beaker, and beaker is placed in digital display and is tested the speed
It is 60~80 DEG C in temperature in constant temperature blender with magnetic force, under the conditions of rotating speed is 300~500r/min, it is stirred 40~
60min obtains tealeaves mixed liquor, then filters tealeaves mixed liquor, obtains tea extract；It counts in parts by weight, take 60 successively~
80 parts of solvents, 80~100 parts of water, 10~20 parts of cosolvents, 8~10 parts of accelerating agents, 8~10 parts of tea extracts, 20~30 parts
Zymotic fluid, 1~3 part of emulsifier, 2~3 parts of corrosion inhibiter, 3~5 parts of thickeners, 1~3 part of antifoaming agent, 1~3 part of sodium thiosulfate,
By solvent, water and cosolvent are placed in reaction kettle, under the conditions of rotating speed is 300~500r/min, are stirred 40~60min,
Then to emulsifier is added in reaction kettle, under the conditions of rotating speed is 600~800r/min, it is stirred 40~60min, is then added
Enter the accelerating agent into reaction kettle, tea extract, zymotic fluid, corrosion inhibiter, thickener, antifoaming agent and sodium thiosulfate, in rotating speed
Under the conditions of 600~800r/min, after being stirred 40~60min, vacuum defoamation is to get environmentally-friendly water-based paint stripper.It is described
Solvent is any one of benzyl alcohol, vinyl ethyl ether or N-Methyl pyrrolidone.The cosolvent is methanol, butanol, isopropyl
Any one in alcohol, ethylene glycol ethyl ether or cyclohexanone.The accelerating agent is citric acid, any one in malic acid or benzoic acid
Kind.The emulsifier is alkyl phenol polyoxyethylene ether, any one in lauryl sodium sulfate or Tween-60.The inhibition
Agent is phenylpropyl triazole, methyl-triazole, any one in thiazole or imidazoles.The thickener is sodium carboxymethylcellulose, second
One kind in base cellulose, methylcellulose, polyvinyl alcohol or guar gum.The antifoaming agent is dimethyl silicone polymer or gathers
One kind in oxypropylene ethylene oxide glycerin ether.
By pine nut and acorn in mass ratio 1：1 is placed in mixed grinding 40min in mortar, obtains mixture, in parts by weight
Meter, by 15 parts of rubber bark beetles, 12 parts of pine moths, 26 parts of water are placed in mixing in juice extractor and squeeze the juice, and obtain mixing juice, by weight
Number meter mixes juices by 20 parts, 20 parts of mixtures, 5 parts of whiterot fungis, 5 parts of biogas slurries, and the glucose that 10 parts of mass fractions are 0.5% is molten
Liquid is placed in fermentation cauldron, is 35 DEG C in temperature, and under the conditions of rotating speed is 300r/min, mixed fermentation 5 days obtains fermenting mixture, then
Fermenting mixture is filtered, zymotic fluid is obtained；It counts in parts by weight, by Longjing tea and water in mass ratio 1：30 are placed in beaker,
And beaker is placed in digital display and is tested the speed in constant temperature blender with magnetic force, it is 80 DEG C in temperature, under the conditions of rotating speed is 500r/min, stirring is mixed
60min is closed, tealeaves mixed liquor is obtained, then tealeaves mixed liquor is filtered, obtains tea extract；It counts in parts by weight, takes 80 successively
Part solvent, 100 parts of water, 20 parts of cosolvents, 10 parts of accelerating agents, 10 parts of tea extracts, 30 portions of zymotic fluids, 3 parts of emulsifiers, 3 parts
Corrosion inhibiter, 5 parts of thickeners, 3 parts of antifoaming agent, 3 parts of sodium thiosulfate, by solvent, water and cosolvent are placed in reaction kettle, in rotating speed
Under the conditions of 450r/min, be stirred 40min, then to emulsifier is added in reaction kettle, in rotating speed be 800r/min conditions
Under, it is stirred 60min, is then added the accelerating agent into reaction kettle, tea extract, zymotic fluid, corrosion inhibiter, thickener disappears
Infusion and sodium thiosulfate, under the conditions of rotating speed is 700r/min, after being stirred 60min, vacuum defoamation is to get environment-friendly type water
Base paint stripper.The solvent is N-Methyl pyrrolidone.The cosolvent is methanol.The accelerating agent is citric acid.The breast
Agent is alkyl phenol polyoxyethylene ether.The corrosion inhibiter is phenylpropyl triazole.The thickener is sodium carboxymethylcellulose.It is described
Antifoaming agent be dimethyl silicone polymer.
It counts in parts by weight, 20 parts of mixtures, 5 parts of whiterot fungis, 5 parts of biogas slurries, the glucose that 10 parts of mass fractions are 0.5%
Solution is placed in fermentation cauldron, is 35 DEG C in temperature, and under the conditions of rotating speed is 300r/min, mixed fermentation 5 days obtains fermenting mixture,
Fermenting mixture is filtered again, obtains zymotic fluid；It counts in parts by weight, by Longjing tea and water in mass ratio 1：30 are placed in beaker
In, and beaker is placed in digital display and is tested the speed in constant temperature blender with magnetic force, it is 80 DEG C in temperature, under the conditions of rotating speed is 500r/min, stirs
Mixing 60min is mixed, tealeaves mixed liquor is obtained, then tealeaves mixed liquor is filtered, obtains tea extract；It counts in parts by weight, successively
Take 80 parts of solvents, 100 parts of water, 20 parts of cosolvents, 10 parts of accelerating agents, 10 parts of tea extracts, 30 portions of zymotic fluids, 3 parts of emulsifiers,
3 parts of corrosion inhibiter, 5 parts of thickeners, 3 parts of antifoaming agent, 3 parts of sodium thiosulfate, by solvent, water and cosolvent are placed in reaction kettle, in
Under the conditions of rotating speed is 450r/min, be stirred 40min, then to emulsifier is added in reaction kettle, in rotating speed be 800r/min
Under the conditions of, it is stirred 60min, the accelerating agent into reaction kettle, tea extract, zymotic fluid, corrosion inhibiter, thickening is then added
Agent, antifoaming agent and sodium thiosulfate, under the conditions of rotating speed is 700r/min, after being stirred 60min, vacuum defoamation is to get ring
Guarantor's type water-base depainting agent.The solvent is N-Methyl pyrrolidone.The cosolvent is methanol.The accelerating agent is citric acid.
The emulsifier is alkyl phenol polyoxyethylene ether.The corrosion inhibiter is phenylpropyl triazole.The thickener is carboxymethyl cellulose
Sodium.The antifoaming agent is dimethyl silicone polymer.
It counts in parts by weight, by 15 parts of rubber bark beetles, 12 parts of pine moths, 26 parts of water are placed in mixing in juice extractor and squeeze the juice,
Juice must be mixed, is counted in parts by weight, mixes juice by 20 parts, 5 parts of whiterot fungis, 5 parts of biogas slurries, 10 parts of mass fractions are 0.5%
Glucose solution is placed in fermentation cauldron, is 35 DEG C in temperature, under the conditions of rotating speed is 300r/min, mixed fermentation 5 days must ferment mixed
Object is closed, then fermenting mixture is filtered, obtains zymotic fluid；It counts in parts by weight, by Longjing tea and water in mass ratio 1：30 are placed in
In beaker, and beaker is placed in digital display and is tested the speed in constant temperature blender with magnetic force, is 80 DEG C in temperature, rotating speed is 500r/min conditions
Under, it is stirred 60min, obtains tealeaves mixed liquor, then tealeaves mixed liquor is filtered, obtains tea extract；It counts in parts by weight,
80 parts of solvents, 100 parts of water, 20 parts of cosolvents, 10 parts of accelerating agents, 10 parts of tea extracts, 30 portions of zymotic fluids, 3 parts of breasts are taken successively
Agent, 3 parts of corrosion inhibiter, 5 parts of thickeners, 3 parts of antifoaming agent, 3 parts of sodium thiosulfate, by solvent, water and cosolvent are placed in reaction kettle
In, under the conditions of rotating speed is 450r/min, it is stirred 40min, then to emulsifier is added in reaction kettle, is in rotating speed
Under the conditions of 800r/min, it is stirred 60min, the accelerating agent into reaction kettle, tea extract, zymotic fluid, inhibition is then added
Agent, thickener, antifoaming agent and sodium thiosulfate, under the conditions of rotating speed is 700r/min, after being stirred 60min, vacuum defoamation,
Up to environmentally-friendly water-based paint stripper.The solvent is N-Methyl pyrrolidone.The cosolvent is methanol.The accelerating agent is lemon
Lemon acid.The emulsifier is alkyl phenol polyoxyethylene ether.The corrosion inhibiter is phenylpropyl triazole.The thickener is that carboxymethyl is fine
The plain sodium of dimension.The antifoaming agent is dimethyl silicone polymer.
By pine nut and acorn in mass ratio 1：1 is placed in mixed grinding 40min in mortar, obtains mixture, in parts by weight
Meter, by 15 parts of rubber bark beetles, 12 parts of pine moths, 26 parts of water are placed in mixing in juice extractor and squeeze the juice, and obtain mixing juice, by weight
Number meter mixes juices by 20 parts, 20 parts of mixtures, 5 parts of biogas slurries, and the glucose solution that 10 parts of mass fractions are 0.5% is placed in fermentation
It it is 35 DEG C in temperature, under the conditions of rotating speed is 300r/min, mixed fermentation 5 days obtains fermenting mixture, then fermentation is mixed in kettle
Object filters, and obtains zymotic fluid；It counts in parts by weight, by Longjing tea and water in mass ratio 1：30 are placed in beaker, and beaker is set
In digital display tests the speed constant temperature blender with magnetic force, it is 80 DEG C in temperature, under the conditions of rotating speed is 500r/min, is stirred 60min, obtains
Tealeaves mixed liquor is then filtered, obtains tea extract by tealeaves mixed liquor；It counts in parts by weight, takes 80 parts of solvents successively, 100
Part water, 20 parts of cosolvents, 10 parts of accelerating agents, 10 parts of tea extracts, 30 portions of zymotic fluids, 3 parts of emulsifiers, 3 parts of corrosion inhibiter, 5 parts
Thickener, 3 parts of antifoaming agent, 3 parts of sodium thiosulfate, by solvent, water and cosolvent are placed in reaction kettle, in rotating speed be 450r/min
Under the conditions of, it is stirred 40min, then to emulsifier is added in reaction kettle, under the conditions of rotating speed is 800r/min, is stirred
The accelerating agent into reaction kettle, tea extract, zymotic fluid, corrosion inhibiter, thickener, antifoaming agent and thio sulphur is then added in 60min
Sour sodium, under the conditions of rotating speed is 700r/min, after being stirred 60min, vacuum defoamation is to get environmentally-friendly water-based paint stripper.Institute
It is N-Methyl pyrrolidone to state solvent.The cosolvent is methanol.The accelerating agent is citric acid.The emulsifier is alkyl phenol
Polyoxyethylene ether.The corrosion inhibiter is phenylpropyl triazole.The thickener is sodium carboxymethylcellulose.The antifoaming agent is poly-
Dimethyl siloxane.
By pine nut and acorn in mass ratio 1：1 is placed in mixed grinding 40min in mortar, obtains mixture, in parts by weight
Meter, by 15 parts of rubber bark beetles, 12 parts of pine moths, 26 parts of water are placed in mixing in juice extractor and squeeze the juice, and obtain mixing juice, by weight
Number meter mixes juices by 20 parts, 20 parts of mixtures, 5 parts of whiterot fungis, 5 parts of biogas slurries, and the glucose that 10 parts of mass fractions are 0.5% is molten
Liquid is placed in fermentation cauldron, is 35 DEG C in temperature, and under the conditions of rotating speed is 300r/min, mixed fermentation 5 days obtains fermenting mixture, then
Fermenting mixture is filtered, zymotic fluid is obtained；It counts in parts by weight, takes 80 parts of solvents successively, 100 parts of water, 20 parts of cosolvents, 10 parts
Accelerating agent, 30 portions of zymotic fluids, 3 parts of emulsifiers, 3 parts of corrosion inhibiter, 5 parts of thickeners, 3 parts of antifoaming agent, 3 parts of sodium thiosulfate will be molten
Agent, water and cosolvent are placed in reaction kettle, under the conditions of rotating speed is 450r/min, 40min are stirred, then in reaction kettle
Emulsifier is added, under the conditions of rotating speed is 800r/min, is stirred 60min, the accelerating agent into reaction kettle, tealeaves is then added
Extracting solution, zymotic fluid, corrosion inhibiter, thickener, antifoaming agent and sodium thiosulfate, under the conditions of rotating speed is 700r/min, stirring is mixed
After closing 60min, vacuum defoamation is to get environmentally-friendly water-based paint stripper.The solvent is N-Methyl pyrrolidone.The cosolvent is
Methanol.The accelerating agent is citric acid.The emulsifier is alkyl phenol polyoxyethylene ether.The corrosion inhibiter is phenylpropyl triazole.
The thickener is sodium carboxymethylcellulose.The antifoaming agent is dimethyl silicone polymer.
Comparative example：The paint stripper of Shanghai Chemical Industry Science Co., Ltd production.
Environmentally-friendly water-based paint stripper obtained by above-described embodiment and the paint stripper of comparative example are detected, specific detection is such as
Under：
1. paint removal efficiency is tested：The plastic part base material of depainting will be needed to be immersed in the container for filling paint stripper, control paint-removing liquid temperature
Degree is 40~60 DEG C, 30min is impregnated, by HG/T2881《Paint removal efficiency test method》It is measured；
2. depainting measures fixed：It takes 1L paint strippers to pour into container, is impregnated needing the plastic part base material of depainting to be put into paint stripper simultaneously
Observation measures depainting amount until paint stripper cannot take off paint film.
Test result is as shown in table 1.
Table 1：Performance test table
| Detection content | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example |
| Paint removal efficiency/% | 94 | 91 | 92 | 90 | 92 | 87 |
| Depainting amount/（cm2/L） | 580 | 571 | 566 | 567 | 569 | 500 |
As shown in Table 1, the environmentally-friendly water-based paint stripper paint removal efficiency of the present invention is high and depainting amount is big.
Claims (9)
1. a kind of environmentally-friendly water-based paint stripper, it is characterised in that：It is made of the raw material of following parts by weight：60~80 parts molten
Agent, 80~100 parts of water, 10~20 parts of cosolvents, 8~10 parts of accelerating agents, 8~10 parts of tea extracts, 20~30 portions of zymotic fluids,
1~3 part of emulsifier, 2~3 parts of corrosion inhibiter, 3~5 parts of thickeners, 1~3 part of antifoaming agent, 1~3 part of sodium thiosulfate；
The preparation process of the environmentally-friendly water-based paint stripper is：
（1）Each raw material is weighed by raw material composition；
（2）By solvent, water and cosolvent are stirred, and emulsifier for mixing mixing is then added, accelerating agent is then added, tealeaves carries
Liquid, zymotic fluid, corrosion inhibiter, thickener, antifoaming agent and sodium thiosulfate mixing are taken, vacuum defoamation is to get environmentally-friendly water-based depainting
Agent.
2. a kind of environmentally-friendly water-based paint stripper according to claim 1, it is characterised in that：The solvent is benzyl alcohol, ethylene
Any one in base ether or N-Methyl pyrrolidone.
3. a kind of environmentally-friendly water-based paint stripper according to claim 1, it is characterised in that：The cosolvent be methanol, butanol,
Any one in isopropanol, ethylene glycol ethyl ether or cyclohexanone.
4. a kind of environmentally-friendly water-based paint stripper according to claim 1, it is characterised in that：The accelerating agent is citric acid, apple
Any one in tartaric acid or benzoic acid.
5. a kind of environmentally-friendly water-based paint stripper according to claim 1, it is characterised in that：The preparation process of the zymotic fluid
For：By pine nut and acorn in mass ratio 1：1 mixed grinding obtains mixture, counts in parts by weight, by 10~20 parts of rubber bark beetles
Worm, 10~20 parts of pine moths, 20~30 parts of water mixing squeeze the juice, obtain mixing juice, count in parts by weight, 20~30 parts of mixing slurries
Juice, 10~20 parts of mixtures, 3~5 parts of whiterot fungis, 3~5 parts of biogas slurries, 8~10 parts of glucose solution mixed fermentations, filtering must be sent out
Zymotic fluid.
6. a kind of environmentally-friendly water-based paint stripper according to claim 1, it is characterised in that：The emulsifier is alkyl phenol polyoxy
Any one in vinethene, lauryl sodium sulfate or Tween-60.
7. a kind of environmentally-friendly water-based paint stripper according to claim 1, it is characterised in that：The corrosion inhibiter is three nitrogen of phenylpropyl alcohol
Any one in azoles, methyl-triazole, thiazole or imidazoles.
8. a kind of environmentally-friendly water-based paint stripper according to claim 1, it is characterised in that：The thickener is carboxymethyl cellulose
One kind in plain sodium, ethyl cellulose, methylcellulose, polyvinyl alcohol or guar gum.
9. a kind of environmentally-friendly water-based paint stripper according to claim 1, it is characterised in that：The antifoaming agent is poly dimethyl
One kind in siloxanes or polyoxypropylene ethylene oxide glycerin ether.
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