Basic paint remover and preparation method thereof

A paint stripper and alkaline technology, applied in the field of paint strippers and alkaline paint strippers, can solve the problems of high toxicity and long paint stripping time of organic paint strippers, and achieve the effect of improving paint stripping activity and weakening corrosion.

Inactive Publication Date: 2007-02-28
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The paint remover overcomes the disadvantages of strong corrosion and long paint removal time of simple inorganic paint removers, and at the same time avoids the shortcomings of organic paint removers such as high toxicity, strong volatility, and serious pollution, and achieves low Toxicity, non-corrosion, fast paint removal and environmental friendly requirements

Method used

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  • Basic paint remover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 3.56 grams of potassium hydroxide to 95.45 grams of benzyl alcohol. After the potassium hydroxide is completely dissolved, add 0.868 grams of caprylic acid glyceride and 0.027 grams of 8-mercaptoquinoline, and stir evenly to obtain a paint remover solution. Under the condition of 80°C, the device to be stripped is completely immersed in the solution for 10 minutes of stripping treatment, and the stripping rate can be 100%.

Embodiment 2

[0022] Add 3.62 grams of potassium hydroxide to 94.6 grams of benzyl alcohol. After the potassium hydroxide is completely dissolved, add 1.72 grams of glyceryl caprylate and 0.054 grams of 2,2-dithio-5-nitrobenzoic acid, and stir Uniform paint remover solution. Under the condition of 82° C., the device to be stripped is completely immersed in the solution for 9 minutes of stripping treatment, and the stripping rate reaches 100%.

Embodiment 3

[0024] Add 3.62 grams of potassium hydroxide to 94.6 grams of benzyl alcohol. After the potassium hydroxide is completely dissolved, add 1.72 grams of triglyceride caprate and 0.054 grams of 2,2-dithio-5-nitrobenzoic acid, and stir Uniform paint remover solution. Under the condition of 75° C., the device to be stripped is completely immersed in the solution for 12 minutes of stripping treatment, and the stripping rate reaches 100%.

[0025] The test results show that the paint stripping activity of the above three embodiments is relatively high.

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Abstract

The invention discloses an alkaline paint remover, which comprises the following parts: 64-96% benzene substituted alkylol, 3.1-31% potassium hydroxide, 0.1-5% surface activator and 0.01-0.1% erosion-proof agent.

Description

technical field [0001] The invention relates to a paint remover, specifically an alkaline paint remover, especially an alkaline paint remover containing a highly active corrosion inhibitor nitrobenzene disulfide or a mercaptoquinoline compound. Paint remover can be used to remove the paint layer on the surface of electronic products such as computers and mobile phones. Background technique [0002] Before repainting appliances or equipment parts, it is often necessary to strip the old paint layer. The removal of the old paint layer needs to be based on different requirements, different substrates, and different coatings. Corresponding requirements are put forward for the universality of the paint remover to remove various paint films. [0003] There are two types of paint removers commonly used at present: including inorganic and organic paint removers. [0004] Most of the inorganic paint removers are sodium hydroxide, which is relatively low in cost and safe to use, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/04
Inventor 于海英张生万张建乔华
Owner SHANXI UNIV
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