CN102964902A - Paint remover as well as preparation method and application thereof - Google Patents

Paint remover as well as preparation method and application thereof Download PDF

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Publication number
CN102964902A
CN102964902A CN2012104761801A CN201210476180A CN102964902A CN 102964902 A CN102964902 A CN 102964902A CN 2012104761801 A CN2012104761801 A CN 2012104761801A CN 201210476180 A CN201210476180 A CN 201210476180A CN 102964902 A CN102964902 A CN 102964902A
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Prior art keywords
parts
paint remover
paint
coating
preparation
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CN2012104761801A
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Chinese (zh)
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CN102964902B (en
Inventor
王成
王文
吴航
王群昌
朱圣龙
王福会
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Institute of Metal Research of CAS
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Institute of Metal Research of CAS
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Abstract

The invention relates to a paint remover, in particular relates to a paint remover which can remove multiple organic coatings as well as a preparation method and an application thereof and belongs to the field of fine chemical engineering. The paint remover comprises the following components (in parts by weight): 30-80 parts of dichloromethane, 0.2-5 parts of ethanol amine, 0.5-10 parts of formic acid, 5-20 parts of ethyl alcohol, 2-20 parts of acetone, 2-8 parts of liquid paraffin and 0.01-0.1 part of organic corrosion inhibitor, wherein the corrosion inhibitor is one or more of hexamethylenetetramine, cupferron, benzotriazole and sodium oleate. The preparation method of the paint remover comprises the steps of adding each component into a container in proportion and stirring to be uniform at normal temperature and normal pressure. The paint remover provided by the invention can effectively remove organic coatings on various metal surfaces, such as an epoxy resin coating, a polyurethane resin coating, an organic silicon resin coating and a polyester coating; the paint remover provided by the invention has strong coating dissolving capacity, paint removing speed at normal temperature is high, and metal substrate is not corroded; and raw materials are available, cost is low, and a production process is simple.

Description

A kind of paint remover and preparation method thereof and application
Technical field
The present invention relates to a kind of paint remover, particularly a kind of paint remover that multiple organic coating is had the removal effect and preparation method thereof and application belong to field of fine chemical.
Background technology
Organic coating is widely applied in daily life and industrial production.The effect of coating is to provide certain protective effect to base material on the one hand, is the outward appearance of beautifying coated article on the other hand.In the actual life, under environmental activity and physical mechanical effect, along with the prolongation coating of duration of service the part often occurs or big area lost efficacy, such as loss of gloss, efflorescence, come off, crackle, scuffing, ground corrosion etc., or defectives such as tangerine peel, crackle, efflorescence appears in the coating preparation process, cause the appearance of unacceptable product, this just requires thoroughly to remove coating, and again spraying.The mechanical removal coating has the shortcomings such as time-consuming, that efficient is low, often can not realize the removal of coating to complex-shaped component.In addition, also may cause the destructions such as scuffing of ground, the coating that adopts paint remover to remove substrate surface is a kind of effective means.
At present, there is following shortcoming in the paint remover of industrial use: metallic substance is caused corrosion, and high volatility, the paint remover that has need to heat use, contains the toxic substances such as benzene, phenol, hydrofluoric acid etc.
Summary of the invention
In view of above problem, the object of the present invention is to provide a kind of paint remover and preparation method thereof and application, mainly solve exist in the prior art metallic substance is caused corrosion, contain the problems such as toxic substance such as benzene, phenol, hydrofluoric acid.
Technical scheme of the present invention is:
A kind of paint remover, according to the mass fraction, it is composed as follows:
30~80 parts of methylene dichloride;
0.2~5 part of thanomin;
0.5~10 part in formic acid;
5~20 parts of ethanol;
2~20 parts in acetone;
2~8 parts of whiterusss;
0.01~0.1 part of organic inhibitor.
Described paint remover, according to the mass fraction, it is preferably composed as follows:
40~60 parts of methylene dichloride;
0.5~2 part of thanomin;
1~5 part in formic acid;
10~15 parts of ethanol;
10~15 parts in acetone;
3~5 parts of whiterusss;
0.03~0.05 part of organic inhibitor.
In the present invention, used organic inhibitor is one or more combinations of hexamethylenetetramine, N-nitrosophenyl hydroxylamine amine (cupferron), benzotriazole (BTA) and sodium oleate.
In the present invention, the mass fraction of hexamethylenetetramine is 0~0.1 part, and the mass fraction of cupferron is 0~0.1 part, and the mass fraction of benzotriazole is 0~0.1 part, and the mass fraction of sodium oleate is 0~0.1 part.
The preparation method of described paint remover joins each component in the container in proportion, stirs at normal temperatures and pressures, inhibiter is dissolved fully after, namely obtain paint remover.
The application of described paint remover, paint remover is used for the removal of metal material surface organic coating, perhaps is applied to the removal of woodenware surface paint film.
In the present invention, the inhibition mechanism of organic inhibitor is: be adsorbed on metal base surface and form organic adsorbent thin film in the depainting process, stop the corrosion of metallic substance in depainting solution.According to the difference of base material, can select different inhibiter or its combination, ferrous materials can be selected hexamethylenetetramine, and aluminium alloy can be selected N-nitrosophenyl hydroxylamine amine (cupferron) and sodium oleate, and copper alloy can be selected benzotriazole.For the various metals subassembly, can select the composite of inhibiter.
Advantage of the present invention and effect:
1, paint remover of the present invention is made of methylene dichloride, thanomin, formic acid, ethanol, acetone, whiteruss and organic inhibitor, take methylene dichloride as solvent, adopt whiteruss as volatilization inhibitor, formic acid, thanomin, ethanol and acetone accelerate the removal of coating, the corrosion of metallic substance in the organic inhibitor establishment depainting process.
2, preparation process of the present invention is to take by weighing in proportion each component, after inhibiter is dissolved fully, namely obtains paint remover, and raw material sources are extensive, and cost is low, and production technique is simple, and paint removing effect is remarkable.
3, paint remover of the present invention need not heat in preparation and use procedure, and the normal temperature paint removing effect is good.Metallic substance without corrosion, is not contained the hazardous and noxious substances such as benzene, phenol and hydrofluoric acid, use safety.
4, the present invention be depainting efficient high, to metal without the low-volatile paint remover of burn into, paint remover can effectively be removed the organic coating of various metallic surfaces, such as epoxy coating, urethane resin coating, silicone resin coating and polyester coatings etc.Paint remover is strong to the dissolving power of coating, and the normal temperature paint stripping rate is fast, and metal base is not corroded.
Embodiment
Embodiment 1
The preparation of paint remover: take by weighing methylene dichloride 30kg, thanomin 2.5kg, formic acid 4kg, ethanol 6kg, acetone 3.5kg, whiteruss 2.5kg, cupferron 0.05kg.Above-mentioned substance is added in the stirred vessel, be stirred at normal temperatures and pressures fully dissolving, can paint remover of the present invention.
Stripping test: will put into above-mentioned paint remover with the LY12 aluminum alloy specimen of the thick epoxy coating of 100 μ m, under the room temperature, the 4min coating begins swelling, and coating comes off fully behind the 11min, and aluminum alloy surface is smooth smooth, without corrosion.
Embodiment 2
The preparation of paint remover: take by weighing methylene dichloride 50kg, thanomin 1kg, formic acid 8kg, ethanol 20kg, acetone 16kg, whiteruss 5kg, benzotriazole 0.03kg.Above-mentioned substance is added in the stirred vessel, be stirred at normal temperatures and pressures fully dissolving, can paint remover of the present invention.
Stripping test: will put into above-mentioned paint remover with the red copper gold sample of the thick silicone resin coating of 100 μ m, under the room temperature, the 5min coating begins swelling, and coating comes off fully behind the 12min, and red copper surface is smooth smooth, without corrosion.
Embodiment 3
The preparation of paint remover: take by weighing methylene dichloride 37.5kg, thanomin 0.25kg, formic acid 0.75kg, ethanol 5kg, acetone 2.5kg, whiteruss 3kg, hexamethylenetetramine 0.08kg.Above-mentioned substance is added in the stirred vessel, be stirred at normal temperatures and pressures fully dissolving, can paint remover of the present invention.
Stripping test: will have the Q235 sample of vibrin coating to put into above-mentioned paint remover with 100 μ m are thick, under the room temperature, the 3min coating begins swelling, and coating comes off fully behind the 13min, and the Q235 surfacing is smooth, without corrosion.
Embodiment 4
The preparation of paint remover: take by weighing methylene dichloride 40kg, thanomin 5kg, formic acid 10kg, ethanol 20kg, acetone 20kg, whiteruss 5kg, hexamethylenetetramine 0.05kg, cupferron 0.015kg, sodium oleate 0.02kg.Above-mentioned substance is added in the stirred vessel, be stirred at normal temperatures and pressures fully dissolving, can paint remover of the present invention.
Stripping test: will have the Q235 of epoxy coating and 6063 aluminum alloy combination samples to put into above-mentioned paint remover with 100 μ m are thick, under the room temperature, the 5min coating begins swelling, and coating comes off fully behind the 15min, Q235 and 6063 aluminum alloy surface are smooth smooth, without corrosion.
Embodiment 5
The preparation of paint remover: take by weighing methylene dichloride 35kg, thanomin 1.5kg, formic acid 2.5kg, ethanol 5kg, acetone 4kg, whiteruss 2kg, hexamethylenetetramine 0.03kg, cupferron 0.02kg, benzotriazole 0.015kg, sodium oleate 0.012kg.Above-mentioned substance is added in the stirred vessel, be stirred at normal temperatures and pressures fully dissolving, can paint remover of the present invention.
Stripping test: will put into above-mentioned paint remover with the thick Q235 that the urethane resin coating arranged of 100 μ m and 3A21 aluminium alloy and QSn4-3 tinbronze composite sample, under the room temperature, the 6min coating begins swelling, coating comes off fully behind the 13min, Q235 and 3A21 aluminium alloy and QSn4-3 tinbronze gold surface are smooth smooth, without corrosion.
Embodiment result shows that by the paint remover that this technique obtains, paint removing effect is good, and to the metal object corrosion, technique is easy to control, is fit to suitability for industrialized production.
In addition, the above only is the better feasible embodiment of the present invention, the interest field that can not limit to this present invention, and described paint remover can be used for the removal of metal material surface organic coating, also can be applicable to the removal of woodenware surface paint film.Therefore, make other various corresponding changes and distortion according to technical scheme of the present invention and technical thought, still belong within the protection domain that the present invention contains.

Claims (6)

1. a paint remover is characterized in that, according to the mass fraction, it is composed as follows:
30~80 parts of methylene dichloride;
0.2~5 part of thanomin;
0.5~10 part in formic acid;
5~20 parts of ethanol;
2~20 parts in acetone;
2~8 parts of whiterusss;
0.01~0.1 part of organic inhibitor.
2. paint remover according to claim 1, it is characterized in that: according to the mass fraction, it is preferably composed as follows:
40~60 parts of methylene dichloride;
0.5~2 part of thanomin;
1~5 part in formic acid;
10~15 parts of ethanol;
10~15 parts in acetone;
3~5 parts of whiterusss;
0.03~0.05 part of organic inhibitor.
3. paint remover according to claim 1, it is characterized in that: used organic inhibitor is one or more combinations of hexamethylenetetramine, N-nitrosophenyl hydroxylamine amine, benzotriazole and sodium oleate.
4. paint remover according to claim 1, it is characterized in that: the mass fraction of hexamethylenetetramine is 0~0.1 part, the mass fraction of cupferron is 0~0.1 part, and the mass fraction of benzotriazole is 0~0.1 part, and the mass fraction of sodium oleate is 0~0.1 part.
5. the preparation method of paint remover according to claim 1 is characterized in that: in proportion each component is joined in the container, stirs at normal temperatures and pressures, inhibiter is dissolved fully after, namely obtain paint remover.
6. the application of paint remover according to claim 1 is characterized in that: paint remover is used for the removal of metal material surface organic coating, perhaps is applied to the removal of woodenware surface paint film.
CN201210476180.1A 2012-11-21 2012-11-21 Paint remover as well as preparation method and application thereof Active CN102964902B (en)

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Application Number Priority Date Filing Date Title
CN201210476180.1A CN102964902B (en) 2012-11-21 2012-11-21 Paint remover as well as preparation method and application thereof

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CN102964902A true CN102964902A (en) 2013-03-13
CN102964902B CN102964902B (en) 2014-07-30

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103172183A (en) * 2013-03-28 2013-06-26 哈尔滨工程大学 Water treatment corrosion inhibitor and water treatment agent containing same
CN103602991A (en) * 2013-11-18 2014-02-26 广东电网公司电力科学研究院 Compound corrosion inhibitor, preparation method and application thereof
CN104231714A (en) * 2014-09-25 2014-12-24 无锡康柏斯机械科技有限公司 Mechanical part paint remover and preparation method and application thereof
JP5940204B1 (en) * 2015-09-16 2016-06-29 株式会社オフィス・エー・ティー Film remover
CN106833102A (en) * 2017-03-14 2017-06-13 苏州市金纳润特科技有限公司 A kind of natural gas line paint stripper and its construction method
CN106893395A (en) * 2017-03-24 2017-06-27 苏州市金纳润特科技有限公司 A kind of ship of high-efficiency environment friendly depainting cream
CN107686676A (en) * 2017-09-25 2018-02-13 安徽香杨新能源科技发展有限公司 A kind of environmental friendly material
CN108519300A (en) * 2018-03-08 2018-09-11 中国科学院金属研究所 A kind of galvanic corrosion weightless test method under the conditions of realization high hydrostatic pressure
CN108726654A (en) * 2018-07-01 2018-11-02 李冬生 A kind of lacquer mist coagulant
CN113861746A (en) * 2021-08-26 2021-12-31 中国人民解放军第五七二一工厂 Method for removing radar wave-absorbing paint coating of airplane

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1743389A (en) * 2005-10-08 2006-03-08 北京化工大学 General efficient paint remover
US20060234889A1 (en) * 2005-04-15 2006-10-19 Ecolab Inc. Method for stripping floor finishes using composition that thickens upon dilution with water
CN101130647A (en) * 2007-04-10 2008-02-27 大连工业大学 Paint stripper
CN101684213A (en) * 2009-07-31 2010-03-31 南京师范大学 Multifunctional chorine-free and benzene-free compound paint stripper and production method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060234889A1 (en) * 2005-04-15 2006-10-19 Ecolab Inc. Method for stripping floor finishes using composition that thickens upon dilution with water
CN1743389A (en) * 2005-10-08 2006-03-08 北京化工大学 General efficient paint remover
CN101130647A (en) * 2007-04-10 2008-02-27 大连工业大学 Paint stripper
CN101684213A (en) * 2009-07-31 2010-03-31 南京师范大学 Multifunctional chorine-free and benzene-free compound paint stripper and production method thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103172183A (en) * 2013-03-28 2013-06-26 哈尔滨工程大学 Water treatment corrosion inhibitor and water treatment agent containing same
CN103172183B (en) * 2013-03-28 2014-03-26 哈尔滨工程大学 Water treatment corrosion inhibitor and water treatment agent containing same
CN103602991A (en) * 2013-11-18 2014-02-26 广东电网公司电力科学研究院 Compound corrosion inhibitor, preparation method and application thereof
CN103602991B (en) * 2013-11-18 2015-05-13 广东电网公司电力科学研究院 Compound corrosion inhibitor, preparation method and application thereof
CN104231714A (en) * 2014-09-25 2014-12-24 无锡康柏斯机械科技有限公司 Mechanical part paint remover and preparation method and application thereof
JP6047255B1 (en) * 2015-09-16 2016-12-21 株式会社オフィス・エー・ティー Film remover
JP5940204B1 (en) * 2015-09-16 2016-06-29 株式会社オフィス・エー・ティー Film remover
CN106833102A (en) * 2017-03-14 2017-06-13 苏州市金纳润特科技有限公司 A kind of natural gas line paint stripper and its construction method
CN106893395A (en) * 2017-03-24 2017-06-27 苏州市金纳润特科技有限公司 A kind of ship of high-efficiency environment friendly depainting cream
CN107686676A (en) * 2017-09-25 2018-02-13 安徽香杨新能源科技发展有限公司 A kind of environmental friendly material
CN108519300A (en) * 2018-03-08 2018-09-11 中国科学院金属研究所 A kind of galvanic corrosion weightless test method under the conditions of realization high hydrostatic pressure
CN108726654A (en) * 2018-07-01 2018-11-02 李冬生 A kind of lacquer mist coagulant
CN113861746A (en) * 2021-08-26 2021-12-31 中国人民解放军第五七二一工厂 Method for removing radar wave-absorbing paint coating of airplane

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Effective date: 20140110

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CB03 Change of inventor or designer information

Inventor after: Wang Cheng

Inventor after: Fu Qiang

Inventor after: Wang Wen

Inventor after: Wu Hang

Inventor after: Wang Qunchang

Inventor after: Zhu Shenglong

Inventor after: Wang Fuhui

Inventor after: Liu Shinian

Inventor after: Su Wei

Inventor after: Lv Wangyan

Inventor before: Wang Cheng

Inventor before: Wang Wen

Inventor before: Wu Hang

Inventor before: Wang Qunchang

Inventor before: Zhu Shenglong

Inventor before: Wang Fuhui

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: WANG CHENG WANG WEN WU HANG WANG QUNCHANG ZHU SHENGLONG WANG FUHUI TO: WANG CHENG WANG WEN WU HANG WANG QUNCHANG ZHU SHENGLONG WANG FUHUI LIU SHINIAN SU WEI LV WANGYAN FU QIANG

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