CN103555047B - Paint remover and preparation method thereof - Google Patents
Paint remover and preparation method thereof Download PDFInfo
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- CN103555047B CN103555047B CN201310520097.4A CN201310520097A CN103555047B CN 103555047 B CN103555047 B CN 103555047B CN 201310520097 A CN201310520097 A CN 201310520097A CN 103555047 B CN103555047 B CN 103555047B
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Abstract
The invention discloses a paint remover and a preparation method thereof. The paint remover comprises the following components in percentage by weight: 20-70% of a main solvent, 5-30% of formic ether, 0.5-5% of a surfactant, 0.5-5% of thickening agent and 5-40% of water. The paint remover is prepared by adding the main solvent into a stirring kettle, subsequently adding the thickening agent and the surfactant, starting stirring and uniformly dissolving, further adding water to stir uniformly, subsequently adding benzyl chloride (optionally), formic ether and a corrosion inhibitor in sequence, continuously stirring till the components are uniformly emulsified in the thick state, stopping stirring, discharging and packaging. The paint remover is convenient and simple to use, is capable of effectively eliminating paint films on various base materials, is free of substances, such as formic acid and ammonium hydroxide which are harmful to the environment and the base materials, and is free of components, such as paraffin and kerosene which can hinder the paint film from recoating; in addition, the paint remover has an ideal removing effect on stoving varnish as the optional benzyl chloride is added, so that the paint remover has a wide market prospect.
Description
Technical field
The present invention relates to depainting technical field, particularly a kind of paint remover and preparation method thereof.
Background technology
Paint remover is mainly used in removing the paint film on the substrate such as metal, timber, with traditional physics depainting method (as blast, strike shovel, cutter scrapes) compared with, have convenient, fast, to base material without advantages such as physical deterioration.
Traditional paint remover is divided into acid paint remover and basic paint remover, acid paint remover is primarily of compositions such as the vitriol oil, phosphoric acid, nitric acid, but these strong acid with can cause corrosion to metal base toward contact during paint film generation acidolysis reaction, particularly concentrated nitric acid, hydrochloric acid also can produce acid mist, easily damage human body during use.The main component of basic paint remover is the highly basic such as sodium hydroxide, potassium hydroxide, if these highly basic in use misoperation also may to burn human body skin, and basic paint remover needs heating usually when depainting, also bring inconvenience to user.
In order to avoid the detrimentally affect that strong acid, strong basicity paint remover bring, in recent years, the paint remover that it is main component that people often adopt with the organism such as benzene homologues, hydrochloric ether, the organism in this kind of paint remover and between paint film by dissolving, expand, permeate, the series of physical chemical process such as stripping can reach effective effect of removing paint film.
Such as publication number is authorized to be the patent of invention of CN101875796A, disclose a kind of formula of paint remover, except comprising methylene dichloride 70-80 especially in the main component of this paint remover, also comprise formic acid 1.8-2.2 part, paraffin 1.8-2.2 part, phosphatase 11 .4-1.6 part, ammoniacal liquor 8-12 part etc.Although this paint remover can reach certain paint removing effect, there is following problem:
First, formic acid in this paint remover, phosphoric acid and ammoniacal liquor are in order to the common permeate agent improving paint removal efficiency, enhancing paint removing effect adopts in this area, Main Function strengthens the infiltration of the main solvent such as methylene dichloride in paint film and swelling action, accelerate paint stripping, but for the acids such as formic acid, phosphoric acid, although its ratio does not have traditional acid paint remover high, but still can cause corrosion to metal base, affect performance and the work-ing life of base material.In addition, formic acid and ammoniacal liquor have stronger volatility, and in the use procedure of paint remover, be not only easily splashed to human body skin causes and burn, also can produce irritating smell, polluted air, Long Term Contact also can insulting respiratory mucosa.Common permeate agent also has kerosene, although kerosene to base material and human body all harmless, it can be attached to substrate surface after depainting, for the spraying again of paint film brings inconvenience.
Secondly, the paraffin used in this paint remover is in state of the art, in order to the coagulated substance preventing the too fast volatilization of paint remover from adding.But after depainting, these paraffin also can be the same with above-mentioned permeate agent kerosene, remains in the surface of base material, and extremely difficult removing, be also again that coating paint film causes obstruction.
In addition to the preceding, paint remover of the prior art also exists for the undesirable defect of the elimination effect of baking vanish, and baking vanish is usually painted by multilayer and forms through high bake sizing, and paint film is more firm, sticking power is very strong, and therefore common paint remover is often not easily removed.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of paint remover and preparation method thereof.This paint remover is easy to use, simple, can effectively remove paint film on various base material, waits infringement to base material is corrosion-free, also harmless to human body during use, and not containing the dirt settling such as paraffin, kerosene, facilitates the spraying again of paint film.
Paint remover provided by the invention, comprises the component of following weight percentage: main solvent 20 ~ 70%, manthanoate 5 ~ 30%, tensio-active agent 0.5 ~ 5%, thickening material 0.5 ~ 5% and water 5 ~ 40%.
Preferably, described paint remover comprises the component of following weight percentage: main solvent 20 ~ 70%, benzyl chloride 0.1 ~ 20%, manthanoate 5 ~ 30%, tensio-active agent 0.5 ~ 5%, thickening material 0.5 ~ 5%, inhibiter 0.1 ~ 5% and water 5 ~ 40%.
Preferably, in described paint remover, the weight percentage of each component is: main solvent 40 ~ 60%, benzyl chloride 0 ~ 10%, manthanoate 8 ~ 25%, tensio-active agent 1 ~ 3%, thickening material 0.5 ~ 3%, inhibiter 0 ~ 2% and water 10 ~ 35%.
Preferably, described main solvent is the mixture of phenylcarbinol or dichloro-alkane or phenylcarbinol and dichloro-alkane.
Preferably, described manthanoate is the mixture of one or more in methyl-formiate, ethyl formate, propyl formate, butyl formate, pentyl formate.
Preferably, the carbochain of described butyl formate and pentyl formate both can be straight chain, also can comprise side chain.
Preferably, described tensio-active agent is anion surfactant or nonionogenic tenside.
Preferably, described anion surfactant is sodium lauryl sulphate or Sodium dodecylbenzene sulfonate; Described nonionogenic tenside is alkylphenol polyoxyethylene or fatty alcohol-polyoxyethylene ether.
Preferably, described thickening material is hydroxyethylpropyl cellulose or ethyl cellulose or methylcellulose gum.
A kind of preparation method for the preparation of above-mentioned paint remover, it is characterized in that, main solvent is added in stirring tank, then add thickening material and tensio-active agent, then start and stir and be uniformly dissolved, then add water and stir, then benzyl chloride (selectable components is added successively, can not add during without the need to removing baking vanish), manthanoate and inhibiter, stop after continuing to be stirred to uniformly emulsify viscous pasty state, discharging is packed.
In sum, paint remover provided by the invention, while effective, the various paint film of fast eliminating, has following beneficial effect:
1, formic acid, phosphoric acid, ammoniacal liquor etc. common in existing paint remover is not contained to base material, human body, bad environmental component.
2, the component of obstruction can not caused to paint film again application containing paraffin, kerosene etc.
3, by adding selectable components benzyl chloride, not only can remove common various paint film, the baking vanish paint film that common paint remover is difficult to remove can also be removed.
Embodiment
In order to make those skilled in the art person understand technical scheme of the present invention better, below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
Unit is weight percentage
25kg phenylcarbinol is joined in the stirring tank of 200L, then adds 4kg hydroxyethylpropyl cellulose and 5kg alkylphenol polyoxyethylene, start and stir and be uniformly dissolved, then add 38kg water and stir.Finally add 28kg methyl-formiate, stir into uniformly emulsify viscous pasty state, stop stirring, discharging is packed.
Measure in embodiment 1 according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method " and provide the paint removal efficiency of paint remover (namely in the specified time, paint film expands and wrinkling area percent), result is as follows:
| Paint vehicle | Time | Paint removal efficiency |
| Acrylic paint | 5 | 98.2% |
| Epoxy-based lacquers | 10 | 98.1% |
| Polyurethane paint | 8 | 98.5% |
| F-C paint | 10 | 97.8% |
| Baking vanish | 12 | 82.0% |
Embodiment 2
Unit is weight percentage.
25kg phenylcarbinol and 25kg methylene dichloride are joined in the stirring tank of 200L, then adds 1kg ethyl cellulose and 1kg fatty alcohol-polyoxyethylene ether, start and stir and be uniformly dissolved, then add 40kg water and stir.Finally add 8kg butyl formate, stir into uniformly emulsify viscous pasty state, stop stirring, discharging is packed.
Measure in embodiment 1 according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method " and provide the paint removal efficiency of paint remover (namely in the specified time, paint film expands and wrinkling area percent), result is as follows:
| Paint vehicle | Time | Paint removal efficiency |
| Acrylic paint | 5 | 97.4% |
| Epoxy-based lacquers | 10 | 98.0% |
| Polyurethane paint | 8 | 98.5% |
| F-C paint | 10 | 97.8% |
| Baking vanish | 12 | 79.3% |
Embodiment 3
Unit is weight percentage.
30kg phenylcarbinol and 35kg methylene dichloride are joined in the stirring tank of 200L, then adds 4kg hydroxyethylpropyl cellulose and 4kg Sodium dodecylbenzene sulfonate, start and stir and be uniformly dissolved, then add 11kg water and stir.Finally add 16kg ethyl formate, stir into uniformly emulsify viscous pasty state, stop stirring, discharging is packed.
Measure in embodiment 1 according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method " and provide the paint removal efficiency of paint remover (namely in the specified time, paint film expands and wrinkling area percent), result is as follows:
| Paint vehicle | Time | Paint removal efficiency |
| Acrylic paint | 5 | 99.2% |
| Epoxy-based lacquers | 10 | 97.9% |
| Polyurethane paint | 8 | 98.1% |
| F-C paint | 10 | 98.0% |
| Baking vanish | 12 | 78.4% |
Embodiment 4
Unit is weight percentage.
26kg phenylcarbinol is joined in the stirring tank of 200L, then adds 1kg Vltra tears and 1.5kg alkylphenol polyoxyethylene, start and stir and be uniformly dissolved, then add 24.5kg water and stir.Add 15kg benzyl chloride successively, 28kg ethyl formate and 4kg inhibiter etc., stir into uniformly emulsify viscous pasty state, stops stirring, and discharging is packed.
Measure in embodiment 1 according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method " and provide the paint removal efficiency of paint remover (namely in the specified time, paint film expands and wrinkling area percent), result is as follows:
| Paint vehicle | Time | Paint removal efficiency |
| Acrylic paint | 5 | 98.5% |
| Epoxy-based lacquers | 10 | 98.5% |
| Polyurethane paint | 8 | 99.0% |
| F-C paint | 10 | 98.4% |
| Baking vanish | 12 | 98..2% |
Embodiment 5
Unit is weight percentage.
30kg phenylcarbinol and 35kg methylene dichloride are joined in the stirring tank of 200L, then adds 3kg Vltra tears and 3kg sodium lauryl sulphate, start and stir and be uniformly dissolved, then add 5.5kg water and stir.Add 9kg benzyl chloride successively, 12kg ethyl formate and 2.5kg inhibiter etc., stir into uniformly emulsify viscous pasty state, stops stirring, and discharging is packed.
Measure in embodiment 1 according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method " and provide the paint removal efficiency of paint remover (namely in the specified time, paint film expands and wrinkling area percent), result is as follows:
| Paint vehicle | Time | Paint removal efficiency |
| Acrylic paint | 5 | 98.5% |
| Epoxy-based lacquers | 10 | 98.6% |
| Polyurethane paint | 8 | 98.7% |
| F-C paint | 10 | 98.6% |
| Baking vanish | 12 | 98..0% |
Embodiment 6
Unit is weight percentage.
47.9kg phenylcarbinol is joined in the stirring tank of 200L, then adds 0.5kg Vltra tears and 1.5kg alkylphenol polyoxyethylene, start and stir and be uniformly dissolved, then add 39kg water and stir.Add 3.0kg benzyl chloride successively, 8.0kg ethyl formate and 0.1kg inhibiter etc., stir into uniformly emulsify viscous pasty state, stops stirring, and discharging is packed.
Measure in embodiment 1 according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method " and provide the paint removal efficiency of paint remover (namely in the specified time, paint film expands and wrinkling area percent), result is as follows:
| Paint vehicle | Time | Paint removal efficiency |
| Acrylic paint | 5 | 98.6% |
| Epoxy-based lacquers | 10 | 98.4% |
| Polyurethane paint | 8 | 98.3% |
| F-C paint | 10 | 98.4% |
| Baking vanish | 12 | 98.5% |
Embodiment 7
Unit is weight percentage.
40kg methylene dichloride is joined in the stirring tank of 200L, then adds 0.5kg Vltra tears and 2.5kg alkylphenol polyoxyethylene, start and stir and be uniformly dissolved, then add 33.9kg water and stir.Add 3.0kg benzyl chloride successively, 20kg propyl formate and 0.1kg inhibiter etc., stir into uniformly emulsify viscous pasty state, stops stirring, and discharging is packed.
Measure in embodiment 1 according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method " and provide the paint removal efficiency of paint remover (namely in the specified time, paint film expands and wrinkling area percent), result is as follows:
| Paint vehicle | Time | Paint removal efficiency |
| Acrylic paint | 5 | 99.5% |
| Epoxy-based lacquers | 10 | 99.3% |
| Polyurethane paint | 8 | 99.3% |
| F-C paint | 10 | 99.4% |
| Baking vanish | 12 | 99.0% |
Embodiment 8
Unit is weight percentage.
20kg phenylcarbinol and 25kg methylene dichloride are joined in the stirring tank of 200L, then adds 0.5kg Vltra tears and 2kg alkylphenol polyoxyethylene, start and stir and be uniformly dissolved, then add 32.4kg water and stir.Add 5kg benzyl chloride successively, 15kg ethyl formate and 0.1kg inhibiter etc., stir into uniformly emulsify viscous pasty state, stops stirring, and discharging is packed.
Measure in embodiment 1 according to national standard HG/T2881-1997 " paint remover paint removal efficiency assay method " and provide the paint removal efficiency of paint remover (namely in the specified time, paint film expands and wrinkling area percent), result is as follows:
| Paint vehicle | Time | Paint removal efficiency |
| Acrylic paint | 5 | 99.6% |
| Epoxy-based lacquers | 10 | 99.2% |
| Polyurethane paint | 8 | 99.8% |
| F-C paint | 10 | 99.3% |
| Baking vanish | 12 | 99.2% |
In addition, through test, all corrosion-free phenomenon of the base material of each paint vehicle in embodiment 1-8.
Can be found by embodiment 1-8, do not add benzyl chloride time (embodiment 1-3), paint remover provided by the invention effectively can remove various common paint film, but it is undesirable to baking vanish paint film elimination effect, after interpolation benzyl chloride (embodiment 4-8), paint remover also can reach the effect removed fast to baking vanish.
Above paint remover provided by the present invention and preparation method thereof is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands core concept of the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention.These improve and modify and obtain so-called novel compositions and also should fall in the protection domain of the claims in the present invention.
Claims (8)
1. a paint remover, is characterized in that, comprises the component of following weight percentage: main solvent 20 ~ 70%, benzyl chloride 0.1 ~ 20%, manthanoate 5 ~ 30%, tensio-active agent 0.5 ~ 5%, thickening material 0.5 ~ 5%, inhibiter 0.1 ~ 5% and water 5 ~ 40%; Described manthanoate is the mixture of one or more in methyl-formiate, ethyl formate, propyl formate, butyl formate, pentyl formate.
2. paint remover according to claim 1, is characterized in that, in described paint remover, the weight percentage of each component is: main solvent 40 ~ 60%, benzyl chloride 0.1 ~ 10%, manthanoate 8 ~ 25%, tensio-active agent 1 ~ 3%, thickening material 0.5 ~ 3%, inhibiter 0.1 ~ 2% and water 10 ~ 35%.
3. paint remover according to claim 1 and 2, is characterized in that, described main solvent is the mixture of phenylcarbinol or dichloro-alkane or phenylcarbinol and dichloro-alkane.
4. paint remover according to claim 1, is characterized in that, the carbochain of described butyl formate and pentyl formate both can be straight chain, also can comprise side chain.
5. paint remover according to claim 1 and 2, is characterized in that, described tensio-active agent is anion surfactant or nonionogenic tenside.
6. paint remover according to claim 5, is characterized in that, described anion surfactant is sodium lauryl sulphate or Sodium dodecylbenzene sulfonate; Described nonionogenic tenside is alkylphenol polyoxyethylene or fatty alcohol-polyoxyethylene ether.
7. paint remover according to claim 1 and 2, is characterized in that, described thickening material is hydroxyethylpropyl cellulose or ethyl cellulose or methylcellulose gum.
8. the preparation method for the preparation of paint remover described in claim 1 or 2, it is characterized in that, main solvent is added in stirring tank, then thickening material and tensio-active agent is added, start and stir and be uniformly dissolved, then add water and stir, then add benzyl chloride, manthanoate and inhibiter successively, stop after continuing to be stirred to uniformly emulsify viscous pasty state, discharging is packed.
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| CN103555047B true CN103555047B (en) | 2015-06-17 |
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| CN107075281A (en) * | 2014-08-19 | 2017-08-18 | 吉欧科技聚合物有限责任公司 | Diester peels off component |
| CN106752288A (en) * | 2016-12-08 | 2017-05-31 | 马鞍山拓锐金属表面技术有限公司 | A kind of environmentally friendly watery paint remover of anti-corrosion and preparation method thereof |
| CN107760092A (en) * | 2017-11-20 | 2018-03-06 | 广东三和化工科技有限公司 | A kind of preparation method of aerial fog type without wax paint stripper |
| CN110845905B (en) * | 2019-12-23 | 2022-08-05 | 嘉纳尔科技（北京）有限公司 | Paint remover and production method thereof |
| CN115354335B (en) * | 2022-09-14 | 2024-02-23 | 中亿丰罗普斯金材料科技股份有限公司 | Waste aluminum paint removal process and equipment thereof |
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| US5405548A (en) * | 1991-01-30 | 1995-04-11 | Elf Atochem North America Inc. | Methylbenzyl formate paint strippers |
| US5726140A (en) * | 1992-06-02 | 1998-03-10 | Elf Atochem North America, Inc. | Water-in-oil emulsion having aqueous phase evaporation retarded with wax |
| AU2001288537A1 (en) * | 2000-08-30 | 2002-03-13 | Henkel Loctite Corporation | Methylene chloride-free and optionally methanol-free paint stripper and/or gasket remover compositions |
| CN1982382B (en) * | 2005-12-12 | 2010-12-08 | 比亚迪股份有限公司 | Magnesium-alloy paint-remover composition and its production |
| CN101058691B (en) * | 2006-04-19 | 2010-11-03 | 比亚迪股份有限公司 | Paint remover composition |
| CN101260257A (en) * | 2008-04-28 | 2008-09-10 | 嘉纳尔科技（北京）有限公司 | Low volatility paint remover |
| CN101724312A (en) * | 2009-12-11 | 2010-06-09 | 上海立昌环境工程有限公司 | Paint remover and preparation method and application thereof |
| CN102344712B (en) * | 2011-10-31 | 2016-08-10 | 扬州润达油田化学剂有限公司 | A kind of efficient paint remover and preparation technology thereof |
| CN102816473A (en) * | 2012-08-13 | 2012-12-12 | 自贡鸿鹤化工股份有限公司 | Efficient metal paint remover and preparation method thereof |
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