CN107641369A - A kind of aerial fog type is without wax paint stripper - Google Patents
A kind of aerial fog type is without wax paint stripper Download PDFInfo
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- CN107641369A CN107641369A CN201711154573.XA CN201711154573A CN107641369A CN 107641369 A CN107641369 A CN 107641369A CN 201711154573 A CN201711154573 A CN 201711154573A CN 107641369 A CN107641369 A CN 107641369A
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Abstract
Include the invention discloses a kind of aerial fog type without wax paint stripper, its formula：Environment protection type high-boiling-point solvent AGSE16.0~24.0 part；2.0~6.5 parts of solvent naphtha；0.8~3.6 part of ethylene glycol phenyl ether；2.0~4.0 parts of propylene glycol monomethyl ether；26.0~40.0 parts of dichloromethane；5.0~12.0 parts of methanol；2.0~9.0 parts of formic acid microcapsules；1.5~3.5 parts of thickener；12.0~26 parts of propellant.Using the paint stripper of above technical scheme, there is advantages below：1. low boiling point solvent compounds with middle high boiling solvent, collaboration reduces rate of volatilization, has extremely strong dissolving power and penetration；2. the dual microencapsulation of formic acid, avoiding formic acid corrosion tank, strengthen paint removing effect, improve the stability of product；3. adding thickener, slow down product loss, improve the utilization rate of product, do not contain paraffin, do not influence application again after rinsing well；Absorbed heat 4. being vaporized by propellant, reduce workpiece surface temperature so that the evaporation rate of product is low, has construction concurrently flexibly, conveniently, is atomized the characteristics of excellent.
Description
Technical field
The present invention relates to a kind of coating or paint film clearance technique, more particularly to a kind of evaporation rate it is low, can efficiently depainting, energy
Clean residue is got express developed without the aerial fog type of influence ground again application without wax paint stripper.
Background technology
Coating is that one kind is coated on body surface and can form film, has protection, decoration, mark and other special works
With.With China's economic development, the progress of science and technology, coating will provide more and more perfect, stronger and stronger in more aspects
Function.But there is damage, coating aging in use in coating, or because of Individualized Pursuit aesthetics, function etc. original
Because needing removing, application again.
Remove a variety of methods that have of old coating, including Physical and chemical method.Physical includes abrading using mechanical means
The coating of matrix surface, the coating of pure color coating, laser treatment method, flame ablation method and giant douche etc..Comparatively speaking,
Chemical method is more commonly used.Chemical method is to permeate paint film using paint stripper, dissolve or reacted with paint film, is removed so as to reach
The effect of coating or surface paint.Paint stripper can be divided into alkali paint remover, acid paint stripper and solvent stripper according to composition.
At present, solvent stripper is most common one kind, and it mainly has alkyl chloride hydro carbons, phenmethylol class, crassitude ketone and ester
Class etc., the type paint stripper make paint film or coating and matrix quick separating using solvent covering, infiltration and dissolution.Solvent
Type paint stripper is typically made up of main solvent, cosolvent, activator, volatilization inhibitor and other auxiliary agents.
The chlorinated hydrocarbons paint stripper being formulated using dichloromethane, paraffin as main component, water stamp paint stripper is commonly called as, it is main
It is used to remove acrylic paint, nitrate paint, alkyd paint, there is the high feature of paint removal efficiency.But the close and thick two-component for coating
Polyurethane furniture lacquer, epoxy-based lacquers and low-temperature setting two-component paint paint removing effect it is poor, easily cause wood furniture ground expansion and
Damage.
In order to improve the efficiency of depainting, it is molten on the one hand to add some electrophilicitys during chlorinated hydrocarbons paint stripper is manufactured
Agent-activator（Such as formic acid）, with the macromolecular chain segment that accelerates the failure, strengthen infiltration and swelling action of the main solvent to coating, play
Accelerate the effect of depainting.It is well known that the paint stripper overwhelming majority on the market uses tinplate to add as packing material in formula
Enter organic acid for activating agent, long time stored meeting corrosion tank, quality, potential safety hazard be present.
On the other hand to reduce or preventing the volatilization of the dichloromethane of main solvent, time enough can stops simultaneously
Ooze in people's old coating film, paint blister or dissolving have been stung, usually add paraffin as the slow agent of volatilization resistance.However, paraffin is in depainting
During, the surface of matrix is easily remained in, if can not clean up, adhesive force of the new enamelled coating to matrix can be influenceed.Therefore, make
During with paint stripper with paraffin, it is necessary to surface of bottom material is thoroughly cleaned, the paraffin of residual is fully erased, can application again.
Technical research disclosed in existing paint stripper is a lot.CN201610712968.6 discloses a kind of low volatility depainting
Agent, use phenmethylol, methanol, hydroxyethylpropyl cellulose, ethyl cellulose, Methyl cellulose, formic acid, calgon, the erosion of vulva
Agent, polyxyethylated alkylolamides and Xin Kui acid glycerides are made, and have the characteristics that paint stripping rate is fast, effect is good, toxicity is low.
CN201510751796.9 discloses stable paint stripper of a kind of environmental protection and preparation method thereof, uses butyl acrylate, dichloromethane
Alkane, diethyl carbonate, turpentine oil, methanol, formic acid, BTA, dimethyl sulfoxide (DMSO), calcium chloride, neopelex,
Hydrogen peroxide, paraffin, lucite powder, water-soluble cellulose, distilled water and stabilization aid are made, and have environmental protection, paint removal efficiency
The characteristics of height, property are stable, volatility is small.（Bear gold equality, " development of efficient paint remover "《Modern coatings and application》, 2005
03 phase of year, P7~9）Remover recipe is disclosed, uses ethanol, phosphoric acid, hydrofluoric acid, paraffin, benzene, dichloromethane and acetone system
, there is efficient, low volatilization, inexpensive.CN103555047A discloses a kind of paint stripper and preparation method thereof, including
Main solvent 20~70%, formic acid esters 5~30%, surfactant 0.5~5%, thickener 0.5~5% and water 5~40%, have and use
It is convenient, simple, the paint film on various base materials can be effectively removed, without formic acid, ammoniacal liquor etc. to environment and the prejudicial thing of base material
Matter, and the component sprayed again without the obstruction paint film such as paraffin, kerosene.
Above-mentioned documents emphasis solves to improve paint removal efficiency, reduces volatility and undesirable for the elimination effect of baking vanish
The defects of, but be not directed to how to avoid or prevent organic acid corrosion tank, eliminate quality, potential safety hazard；Also reduction production is not disclosed
The removing problem of the volatile particular technique effect of product and residual paraffin.
As can be seen here, develop a kind of steady quality, safe, evaporation rate is low, efficient depainting, can get express developed clean
Residue has very big economy and market significance without the aerial fog type of influence ground again application without wax paint stripper.
The content of the invention
It is to provide the paint stripper without wax paint stripper, another purpose it is an object of the present invention to provide a kind of aerial fog type
Preparation method.
According to an aspect of the invention, there is provided a kind of aerial fog type includes without wax paint stripper, its formula：
16.0~24.0 parts of environment protection type high-boiling-point solvent AGSE
2.0~6.5 parts of solvent naphtha
0.8~3.6 part of ethylene glycol phenyl ether
2.0~4.0 parts of propylene glycol monomethyl ether
26.0~40.0 parts of dichloromethane
5.0~12.0 parts of methanol
2.0~9.0 parts of formic acid microcapsules
1.5~3.5 parts of thickener
12.0~26 parts of propellant.
The environment protection type high-boiling-point solvent AGSE is dibasic acid ester mixture, also known as DBE, and its main component is succinic acid two
Methyl esters, dimethyl glutarate and dimethyl adipate, there is extremely strong dissolving power and low volatility, it, which can be completely dissolved film, makes
It departs from ground, can effectively reduce swelling of wood and damage, is a kind of biodegradable environment protection type high-boiling-point solvent of energy, right
Polyurethane resin, acrylic resin, polyester resin, alkyd resin, epoxy resin etc. have good solvability.
The solvent naphtha is at least one of 120# solvent naphthas, 200# solvent naphthas.
The ethylene glycol phenyl ether is high with the boiling point of propylene glycol monomethyl ether, volatility is low, permeability is strong, can make cleaning agent, help and ooze
Saturating agent.
The dichloromethane has the characteristic that molecular weight is small, penetrating power is strong, can rapid osmotic to film high polymer height
Molecule segment gap, and make coating be expanded to original 3~4 times, pressure and tension force during expansion make paint film be come off from ground.
In embodiments of the present invention, main solvent passes through middle high boiling solvent AGSE, solvent naphtha, ethylene glycol phenyl ether, third
Glycol methyl ether and low boiling point solvent dichloromethane, methanol compounding, ensure that the present invention has extremely strong dissolving power and penetration；Together
When methylene chloride is greatly lowered, avoid the expansion and damage of wooden ground.
In embodiments of the present invention, the methanol and environment protection type high-boiling-point solvent AGSE, ethylene glycol phenyl ether, propane diols
Methyl ether, dichloromethane form azeotropic mixture, play hydrotropy effect, main solvent can be cooperateed with to be fully infiltrated into film, accelerate paint stripping rate.
The formic acid microcapsules are solid formic acid bilayered microcapsule, and its core is matched somebody with somebody by weight by formic acid and curing agent urea
Than for 1:1.5 solid formic acids being formulated；Wall material first layer is ethyl cellulose, and the wall material second layer is sodium alginate.
The preparation method of the formic acid microcapsules, comprises the following steps by weight ratio：
A. 5~8 parts of toluene, 1.5 parts of ethanol are added in the three-necked flask with reflux, 70~75 DEG C of waters bath with thermostatic control,
Under 300~500r/min rotating speeds, it is slowly added to 7~10 parts of ethyl celluloses and is dispersed to be completely dissolved, continues scattered 5~10min
Obtain dispersion liquid；Then the mixture for entering 45 parts of formic acid and curing agent urea is slowly added into dispersion liquid；In stirring
Lower slow non-solvent petroleum ether to the ethyl cellulose that adds condenses, and stops heating；Stand, naturally cool to room temperature, filtering, washing,
Drying, that is, obtain the microcapsules of ethyl cellulose cladding；
B. in the three-necked flask 20 parts of water added, 60 DEG C is heated, 6 parts of sodium alginates is slowly added to while stirring, treats alginic acid
After sodium is completely dissolved, add the microcapsules of 18 parts of ethyl celluloses cladding, continue to stir 10min, stop heating, cooling, filtering,
Drying obtains sodium alginate and the formic acid microcapsules of ethyl cellulose double-coating.
By using double wall core, effectively prevent formic acid microcapsules from being dissolved by Organic Alcohol, ether and halogenated hydrocarbons, and avoid first
Acids eat metals tank body, quality, potential safety hazard are eliminated, improve the bin stability of product.Solid formic acid is double-deck during use
Microcapsules are opened because being squeezed, and solid formic acid is dissolved in organic solvent, and formic acid molecule penetrates into and the macromolecular chain segment that accelerates the failure,
Strengthen infiltration and swelling action of the main solvent to coating, play a part of accelerating depainting.
The thickener is that section of the U.S. is risen in G1701 oil thickeners, Degussa A300 gas-phase silica thickeners extremely
Few one kind.Thus, the viscosity of paint stripper is improved, slows down trickling, reduce loss, improve the utilization rate of paint stripper.
The propellant is at least one of carbon dioxide, HFO-1234ze, HFO-1234yf.Thus, by this product
When being sprayed onto by depainting workpiece surface, vaporization heat absorption occurs for propellant moment, quickly reduces the temperature around paint film, slow down de-
Paint the rate of volatilization of agent so that dichloromethane, methanol and formic acid small molecule have time enough infiltration, swelling paint film.
According to another aspect of the present invention, there is provided a kind of preparation method of aerial fog type without wax paint stripper, including it is following
Step：
S1, by weight ratio, environment protection type high-boiling-point solvent AGSE, ethylene glycol phenyl ether, propylene glycol monomethyl ether are added in reaction cylinder
Stir evenly, be slowly added to thickener and be dispersed to uniformly；
S2, under stirring, be slowly added to solvent naphtha, methanol, dichloromethane, continue scattered 5~10min；
S3, formic acid microcapsules are added, disperse 5~10min to uniform, produce no wax paint stripper.
In embodiments of the present invention, will can also be poured into the S3 steps without wax paint stripper in inhalator jar ,-
Vacuumize under 0.04MPa~-0.08MPa vacuums, sealed after being put into valve, fill propellant, load onto head and obtain aerosol
Type is without wax paint stripper.
The present invention contrasts with market like product, has the advantages that：
1. use in high boiling solvent AGSE, solvent naphtha, ethylene glycol phenyl ether, propylene glycol monomethyl ether and low boiling point solvent dichloromethane,
Methanol compounds, and collaboration reduces the rate of volatilization of this product so that product of the present invention has extremely strong dissolving power and penetration, adds
Fast paint stripping rate；
2. the dual microencapsulation of formic acid, formic acid corrosion metal can is avoided, potential safety hazard is eliminated, not only improves product
Stability, and substantially improve the paint removing effect of part two-component paint；
3. adding thickener, product loss is slow down significantly, the utilization rate of product is improved, does not contain paraffin, easily rinse well, no
Influence the application again of workpiece；
4. being vaporized by propellant and inhaling thermal property, the volatilization speed for by depainting workpiece surface temperature, being advantageous to slow down product is reduced
Degree, it is easy to solvent penetration, swelling paint film, improves paint removing effect, while there is construction flexibly, to be conveniently atomized the characteristics of excellent.
Embodiment
The present invention will be described for following examples, but the present invention is not limited to these examples system.To the present invention's
Embodiment is modified or carries out equivalent substitution to some technical characteristics, without departing from the spirit of the present invention program,
It all should cover among the claimed technical scheme scope of the present invention.
Embodiment 1
（1）The preparation method of formic acid microcapsules
A. 5 parts of toluene, 1.5 parts of ethanol are added in the three-necked flask with reflux, 70~75 DEG C of waters bath with thermostatic control, 300
Under~500r/min rotating speeds, it is slowly added to 7 parts of ethyl celluloses and is dispersed to be completely dissolved, continues scattered 5~10min and disperseed
Liquid；Then the mixture for entering 18 parts of formic acid and 27 parts of curing agent urea is slowly added into dispersion liquid；Delay under stirring
Add non-solvent petroleum ether to ethyl cellulose to condense, stop heating；Stand, naturally cool to room temperature, filtering, washing, drying,
Obtain the microcapsules of ethyl cellulose cladding；
B. in the three-necked flask 20 parts of water added, 60 DEG C is heated, 6 parts of sodium alginates is slowly added to while stirring, treats alginic acid
After sodium is completely dissolved, add the microcapsules of 18 parts of ethyl celluloses cladding, continue to stir 10min, stop heating, cooling, filtering,
Drying obtains sodium alginate and the formic acid microcapsules of ethyl cellulose double-coating.
（2）A kind of aerial fog type includes without wax paint stripper, its formula：
Embodiment 2
（1）The preparation method of formic acid microcapsules：Except toluene selects 8 parts, from 9 especially, remaining component is with implementing for ethyl cellulose
In example 1（1）It is identical.
（2）A kind of aerial fog type includes without wax paint stripper, its formula：
Embodiment 3
（1）The preparation method of formic acid microcapsules：Except toluene selects 7 parts, from 10 especially, remaining component is with implementing for ethyl cellulose
In example 1（1）It is identical.
（2）A kind of aerial fog type includes without wax paint stripper, its formula：
Embodiment 4
（1）The preparation method of formic acid microcapsules：With in embodiment 2（1）It is identical
（2）A kind of aerial fog type includes without wax paint stripper, its formula：
Comparative example 5：Except dichloromethane selects 37.2 parts, from 0 especially, remaining component is identical with (2) in embodiment 1 for thickener.
Comparative example 6：Except dichloromethane selects 41.5 parts, formic acid microcapsules select 0 especially, in remaining component and embodiment 1
(2) it is identical.
Comparative example 7：Except dichloromethane selects 38.5 parts, formic acid microcapsules and thickener select 0 part, and propellant selects liquid
Outside liquefied oil gas, additionally increase by 2 parts of paraffin, remaining components are identical with (2) in embodiment 4.
Comparative example 8：Except dichloromethane selects 60.5 parts, formic acid microcapsules, thickener and propellant select 0 especially, volume
2 parts of paraffin of outer increase, remaining components are identical with (2) in embodiment 4.
Embodiment 1~4, comparative example 5~8 paint stripper correlated performance using following methods test.
1. viscosity：Using applying -4 glasss, the viscosity of 25 DEG C of paint stripper feed liquids is measured.
2. volatility：Using weight method, the weight claimed every time is subtracted with initial species, between the two with original species
Ratio is the volatility of product.10g paint remover products are sprayed onto wooden ground two-component PU furniture lacquers surface, test respectively is applied
1min and 10min volatility after work.
3. depainting rate：With reference to HG/T 2881-1997《Paint stripper paint removal efficiency determination method》.Paint kind and choose two-component
PU is painted and low-temperature setting baking vanish, ground select tinplate, and paint remover products are sprayed or brushed to paint film, start simultaneously at meter
When, test starts paint film expansion and corrugation area percent after 15min.
4. recoat the adhesive force of paint film：By the polyurethane baking vanish of stainless steel ground chlorinated hydrocarbon paint remover products depainting,
And rinsed well with water, spray acrylic compounds spray painting again after workpiece drying, paint film is measured after being completely dried 72h with scratch
Its adhesive force.
A kind of correlated performance test result of paint stripper obtained by embodiment 1~4, comparative example 5~8 is as shown in table 1 below.
The correlated performance test of the paint stripper of the embodiment of table 1 and comparative example
As can be seen from the above table, a kind of aerial fog type of the present invention is without wax paint stripper and prior art（Comparative example 5-8）Compare, product glues
Denseness is high, is advantageous to slow down paint stripper loss in construction, improves the utilization rate of product；Exclude propellant vaporization volatilization because
Element, product rate of volatilization of the present invention is low, and paint removal efficiency is high；Without paraffin, the workpiece recoating paint film rinsed well through water, dried is attached
Put forth effort strong.
Claims (5)
1. a kind of aerial fog type is without wax paint stripper, it is characterised in that its formula includes：
16.0~24.0 parts of environment protection type high-boiling-point solvent AGSE
2.0~6.5 parts of solvent naphtha
0.8~3.6 part of ethylene glycol phenyl ether
2.0~4.0 parts of propylene glycol monomethyl ether
26.0~40.0 parts of dichloromethane
5.0~12.0 parts of methanol
2.0~9.0 parts of formic acid microcapsules
1.5~3.5 parts of thickener
12.0~26 parts of propellant；
Wherein formic acid microcapsules are solid formic acid bilayered microcapsule, and its core is by weight ratio by formic acid and curing agent urea
1:1.5 solid formic acids being formulated, wall material first layer are ethyl cellulose, and the wall material second layer is sodium alginate.
2. a kind of aerial fog type as claimed in claim 1 is without wax paint stripper, it is characterised in that the solvent naphtha is 120# solvents
At least one of oil, 200# solvent naphthas.
3. a kind of aerial fog type as claimed in claim 1 is without wax paint stripper, it is characterised in that the preparation side of the formic acid microcapsules
Method, comprise the following steps by weight ratio：
A. 5~8 parts of toluene, 1.5 parts of ethanol are added in the three-necked flask with reflux, 70~75 DEG C of waters bath with thermostatic control,
Under 300~500r/min rotating speeds, it is slowly added to 7~10 parts of ethyl celluloses and is dispersed to be completely dissolved, continues scattered 5~10min
Obtain dispersion liquid；Then the mixture for entering 45 parts of formic acid and curing agent urea is slowly added into dispersion liquid；In stirring
Lower slow non-solvent petroleum ether to the ethyl cellulose that adds condenses, and stops heating；Stand, naturally cool to room temperature, filtering, washing,
Drying, that is, obtain the microcapsules of ethyl cellulose cladding；
B. in the three-necked flask 20 parts of water added, 60 DEG C is heated, 6 parts of sodium alginates is slowly added to while stirring, treats alginic acid
After sodium is completely dissolved, add the microcapsules of 18 parts of ethyl celluloses cladding, continue to stir 10min, stop heating, cooling, filtering,
Drying obtains sodium alginate and the formic acid microcapsules of ethyl cellulose double-coating.
4. a kind of aerial fog type as claimed in claim 1 is without wax paint stripper, it is characterised in that the thickener is that section of the U.S. rises
At least one of G1701 oil thickeners, Degussa A300 gas-phase silica thickeners.
5. a kind of aerial fog type as claimed in claim 1 is without wax paint stripper, it is characterised in that the propellant be carbon dioxide,
At least one of HFO-1234ze, HFO-1234yf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154573.XA CN107641369A (en) | 2017-11-20 | 2017-11-20 | A kind of aerial fog type is without wax paint stripper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154573.XA CN107641369A (en) | 2017-11-20 | 2017-11-20 | A kind of aerial fog type is without wax paint stripper |
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| CN107641369A true CN107641369A (en) | 2018-01-30 |
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| CN201711154573.XA Pending CN107641369A (en) | 2017-11-20 | 2017-11-20 | A kind of aerial fog type is without wax paint stripper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110845905A (en) * | 2019-12-23 | 2020-02-28 | 嘉纳尔科技（北京）有限公司 | Paint remover and production method thereof |
| CN112454738A (en) * | 2020-10-28 | 2021-03-09 | 江西格林美资源循环有限公司 | Efficient waste plastic depainting treatment device and process |
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| CN102040880A (en) * | 2009-10-19 | 2011-05-04 | 樊继田 | Method for preparing aerosol |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110845905A (en) * | 2019-12-23 | 2020-02-28 | 嘉纳尔科技（北京）有限公司 | Paint remover and production method thereof |
| CN112454738A (en) * | 2020-10-28 | 2021-03-09 | 江西格林美资源循环有限公司 | Efficient waste plastic depainting treatment device and process |
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