CN101633803A - Organic paint removing agent, preparation method and application in removing paint layer at surface of special equipment - Google Patents
Organic paint removing agent, preparation method and application in removing paint layer at surface of special equipment Download PDFInfo
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- CN101633803A CN101633803A CN200910184753A CN200910184753A CN101633803A CN 101633803 A CN101633803 A CN 101633803A CN 200910184753 A CN200910184753 A CN 200910184753A CN 200910184753 A CN200910184753 A CN 200910184753A CN 101633803 A CN101633803 A CN 101633803A
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Abstract
The invention discloses an organic paint removing agent and a preparation method. The paint removing agent is prepared by dichloromethane, formic acid, phenol, Span 80, lauryl sodium sulfate, organic glass powder and a surface modifying agent in percentage by weight. The preparation method comprises the following steps: mixing the dichloromethane and the formic acid; after the phenol is heated to 45-55 DEG C till being melted, adding mixing liquid; then adding the Span 80 and the lauryl sodium sulfate into the mixed liquid to stir; adding the organic glass powder and dissolving the organic glass powder to the mixed liquid; adding the surface modifying agent into one second of mixed liquid and then heating the mixture to 35-65 DEG C together till the mixture is completely melted; then adding one second of residual mixed liquid. The organic paint removing agent has the characteristics of low poison, no corrosion, rapid paint removal and less environmental pollution and can be widely applied to remove the paint layer at the surface of special equipment.
Description
Technical field
The invention belongs to chemical field, specifically relate to a kind of organic paint remover and preparation method who is used to remove special equipment surface enamelled coating and can satisfies the nondestructive testing requirement.
Background technology
Special equipment is meant and relates to life security, dangerous bigger boiler, pressurized vessel (containing gas cylinder), pressure pipeline, elevator, hoisting machinery, passenger aerial ropeway, large-scale recreation facility.Because of the needs of protection equipment, equipment surface applies paint usually, in current check and periodical survey process, needs the his-and-hers watches top coat layer to remove, and tradition adopts the mechanical grinding method, pollute big, efficient is low and big to equipment damage.How efficiently and not to damage the paint film of removing of equipment, become special equipment trade check problem demanding prompt solution.
At present, remove equipment surface paint and mainly contain physical method and chemical process, compare physical method, chemical process has characteristics such as efficient, easy, is one of common method of sloughing by surface paint.In the chemical depainting method, the prescription paint removing effect that with the methylene dichloride is main component is better, as Chinese patent CN1113926, the disclosed methylene dichloride of Chinese patent CN1492007 is main paint remover, all have advantages such as paint stripping rate is fast, yet because methylene dichloride is volatile and certain toxicity arranged, therefore, having limited it greatly uses widely.
Summary of the invention
The object of the present invention is to provide a kind of organic paint remover and preparation method and the application in removing special equipment surface enamelled coating thereof.
The objective of the invention is to realize by following technical scheme:
A kind of organic paint remover is characterized in that it is that per distribution ratio is made by weight by the following raw materials according component:
Methylene dichloride 60～90%,
Formic acid 2～10%,
Phenol 1～8%,
80 (Span80) 0.5～5% of class of department,
Sodium lauryl sulfate (K-12) 1～8%,
Synthetic glass powder 0.4～6%.
Surface-modifying agent 0.5～4%
The preparation method of above-mentioned organic paint remover carries out as follows:
(1) at first methylene dichloride and formic acid are mixed, add again in the above-mentioned mixed solution after then phenol being heated to 45～55 ℃ of fusings;
(2) then will the class of department 80 and sodium lauryl sulphate (K12) add in the above-mentioned mixed solution stirring and evenly mixing respectively;
(3) add the synthetic glass powder again, stirring makes in its mixing solutions that is dissolved in step (2);
(4) surface-modifying agent and 1/2 above-mentioned mixing solutions are heated to 35～65 ℃ together, dissolve fully until it;
(5) will remain 1/2 step (3) mixing solutions Yi Merger at last joins and promptly gets organic paint remover of the present invention in the above-mentioned fused solution.
Surface-modifying agent described in the above-mentioned steps (4) is Vaseline or paraffin.
The application of above-mentioned organic paint remover in removing special special equipment surface enamelled coating.
Organic paint remover of the present invention has overcome the severe corrosive and the long shortcoming of depainting time of inorganic paint remover, simultaneously by adding the method for organic glass powder and surface-modifying agent, also avoid the volatile and big problem of toxicity of existing organic paint remover, realized low toxicity, the quick depainting of no burn into and requirement low in the pollution of the environment preferably.
Embodiment
Embodiment 1 organic paint remover and preparation method thereof
1. organic paint remover is made by weight percentage by following raw materials according:
Methylene dichloride 70%,
Formic acid 10%,
Phenol 8%,
80 (Span80) 4% of class of department,
Sodium lauryl sulfate (K-12) 5%,
Synthetic glass powder 1.5%,
Vaseline 1.5%.
2. preparation method: its preparation process is as follows:
(1) at first the formic acid of 70% methylene dichloride and 10% is mixed, add again in the above-mentioned mixed solution after 8% phenol being heated to 45～55 ℃ of fusings then;
(2) then 4% class of department 80 and 5% sodium lauryl sulphate (K12) are added in the above-mentioned mixed solution stirring and evenly mixing respectively then;
(3) the synthetic glass powder of adding 1.5%, stirring makes in its mixing solutions that is dissolved in step (2);
(4) 1.5% Vaseline and 1/2 above-mentioned mixing solutions are heated to 35～45 ℃ together, dissolve fully until it;
(5) will remain 1/2 step (3) mixing solutions Yi Merger at last joins and promptly gets organic paint remover of the present invention in the above-mentioned fused solution.
The organic paint remover of gained evenly is coated on raises sub-petrochemical industry 200m
3High-pressure liquefaction gas storage tank surface applies the paint of removing this Surface Pressure Vessel after back 8 minutes, and can satisfy the requirement of nondestructive testing, adds that the coating time needs 3 hours altogether.Originally use artificial polishing process to remove surface paint and need 50 hours.Time-consumingly take a lot of work, labour intensity is big, polluted air, operating environment are abominable.And also damage the reservoir surface metal in the bruting process, shorten the work-ing life of this storage tank.
Embodiment 2 organic paint removers and preparation method thereof:
1. per distribution ratio is made by weight by following raw materials according for organic paint remover:
Methylene dichloride 75%
Formic acid 8%
Phenol 6%
80 (Span80) 5% of class of department
Sodium lauryl sulfate (K-12) 3%
Synthetic glass powder 1%
Paraffin 2%
2. preparation method: its preparation process is as follows:
(1) at first the formic acid of 75% methylene dichloride and 8% is mixed, add again in the above-mentioned mixed solution after then 6% phenol being heated to 45～55 ℃ of fusings;
(2) then 5% class of department 80 and 3% sodium lauryl sulphate (K12) are added in the above-mentioned mixed solution stirring and evenly mixing respectively then;
(3) the synthetic glass powder of adding 1%, stirring makes in its mixing solutions that is dissolved in step (2);
(4) 2% paraffin and 1/2 above-mentioned mixing solutions are heated to 45～65 ℃ together, dissolve fully until it;
(5) will remain 1/2 step (3) mixing solutions Yi Merger at last joins and promptly gets the organic paint remover of the present invention in the above-mentioned fused solution.
It is that 100m, caliber are 25mm pressure pipeline surface that the organic paint remover of gained evenly is coated on the high-spirited chemical industry length in Nanjing, apply the paint of removing this pressure pipeline surface after back 5 minutes, and can satisfy the requirement of nondestructive testing, add that the coating time needs 5 hours altogether.Originally use artificial polishing process to remove surface paint and need 120 hours.Time-consumingly take a lot of work, labour intensity is big, polluted air, operating environment are abominable.And also damage the pipe surface metal in the bruting process, shorten the work-ing life of this pipeline.
Research institute is detected this paint remover through the Nanjing product quality supervision and inspection, satisfies GB18581-2001 " limits of harmful substances in the indoor decorating material solvent type woodwork coating "; Carry out Mechanics Performance Testing with reference to GB/T228-2002 " metallic substance tensile test at room temperature method " to using the matrix behind this paint remover, detected result shows does not have influence to the mechanical property of body material; With reference to JB/T7901-1999 " metallic substance laboratory uniform corrosion total immersion test method " the corrosion situation of using matrix in this paint remover process is tested, detected result shows that its erosion rate is 0.0266mm/a, far below the relevant regulations of country.
Claims (4)
1, a kind of organic paint remover is characterized in that it is formulated by following raw materials by weight percent:
Methylene dichloride 60～90%, formic acid 2～10%, phenol 1～8%,
Department class 0.5～5%, sodium lauryl sulfate 1～8%,
Synthetic glass powder 0.4～6%, surface-modifying agent 0.5～4%.
2, a kind of method for preparing the described organic paint remover of claim 1, its preparation process is as follows:
(1) at first methylene dichloride and formic acid are mixed, add again in the above-mentioned mixed solution after then phenol being heated to 45～55 ℃ of fusings;
(2) then will the class of department 80 and sodium lauryl sulphate add in the above-mentioned mixed solution stirring and evenly mixing respectively;
(3) add the synthetic glass powder again, stirring makes in its mixing solutions that is dissolved in step (2);
(4) mixing solutions of surface-modifying agent and 1/2 step (3) is heated to 35～65 ℃ together, dissolves fully until it;
(5) will remain 1/2 step (3) mixing solutions Yi Merger at last joins and promptly gets organic paint remover of the present invention in the above-mentioned fused solution.
3, preparation method according to claim 2 is characterized in that the surface-modifying agent described in the step (4) is Vaseline or paraffin.
4, the application of organic paint remover as claimed in claim 1 in removing special equipment surface enamelled coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184753A CN101633803A (en) | 2009-08-14 | 2009-08-14 | Organic paint removing agent, preparation method and application in removing paint layer at surface of special equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184753A CN101633803A (en) | 2009-08-14 | 2009-08-14 | Organic paint removing agent, preparation method and application in removing paint layer at surface of special equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101633803A true CN101633803A (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910184753A Pending CN101633803A (en) | 2009-08-14 | 2009-08-14 | Organic paint removing agent, preparation method and application in removing paint layer at surface of special equipment |
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| CN (1) | CN101633803A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181199A (en) * | 2010-12-31 | 2011-09-14 | 西安利澳科技股份有限公司 | Aluminium alloy paint stripper and preparation method thereof |
| CN103450734A (en) * | 2013-08-23 | 2013-12-18 | 吴江龙硕金属制品有限公司 | Metal paint remover and preparation method thereof |
| WO2017008258A1 (en) * | 2015-07-14 | 2017-01-19 | 深圳市恒兆智科技有限公司 | Solvent-based paint remover, use thereof, and method for removing paint from workpiece |
| CN109694605A (en) * | 2017-10-24 | 2019-04-30 | 宝鸡烽火诺信科技有限公司 | A kind of efficient and environment-friendly type enameled wire varnish remover and preparation method thereof |
-
2009
- 2009-08-14 CN CN200910184753A patent/CN101633803A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181199A (en) * | 2010-12-31 | 2011-09-14 | 西安利澳科技股份有限公司 | Aluminium alloy paint stripper and preparation method thereof |
| CN102181199B (en) * | 2010-12-31 | 2013-04-24 | 西安经建油漆股份有限公司 | Aluminium alloy paint stripper and preparation method thereof |
| CN103450734A (en) * | 2013-08-23 | 2013-12-18 | 吴江龙硕金属制品有限公司 | Metal paint remover and preparation method thereof |
| WO2017008258A1 (en) * | 2015-07-14 | 2017-01-19 | 深圳市恒兆智科技有限公司 | Solvent-based paint remover, use thereof, and method for removing paint from workpiece |
| CN109694605A (en) * | 2017-10-24 | 2019-04-30 | 宝鸡烽火诺信科技有限公司 | A kind of efficient and environment-friendly type enameled wire varnish remover and preparation method thereof |
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Open date: 20100127 |