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Paint removing composition and preparation method thereof

A composition and paint stripping technology, applied in the direction of chemical paint/ink remover, coating, etc., can solve the problems of corrosion of metal substrates, low corrosion potential, and damage to the structure of metal substrates

Active Publication Date: 2019-08-16
SHENZHEN WAVE TELECOMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low corrosion potential of the metal substrate, the added nucleophile will have a more serious corrosion effect on the metal substrate and destroy the structure of the metal substrate.

Method used

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  • Paint removing composition and preparation method thereof
  • Paint removing composition and preparation method thereof
  • Paint removing composition and preparation method thereof

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preparation example Construction

[0024] The preparation raw materials of the above-mentioned paint stripping composition have reasonable compatibility and synergistic effect, so that the paint stripping composition obtained has high paint stripping efficiency and low corrosion rate to the base material.

[0025] In one embodiment, the substrate is an aluminum alloy substrate or a magnesium alloy substrate. Aluminum alloy substrates have a low corrosion potential and are susceptible to corrosion by paint strippers. However, the paint stripping composition of the above embodiment can quickly remove the paint film or powder layer on the aluminum alloy substrate, and has less corrosion effect on the aluminum alloy substrate. It should be noted that the base material is not limited to the base material indicated above, and may also be other metal base materials.

[0026] In one embodiment, the paint film is a paint film of polyurethane paint or a paint film of acrylic paint.

[0027] In one embodiment, the powde...

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Abstract

The invention relates to a paint removing composition and a preparation method thereof. The paint removing composition comprises the following raw materials in parts by mass: 40-70 parts of a main solvent, 20-40 parts of a cosolvent, 1-20 parts of an accelerator and 0.01-5 parts of a corrosion inhibitor, wherein the main solvent is selected from at least one of dichloromethane, chloroform, dichloropropane, N-methylpyrrolidone, N, N-dimethylformamide and dimethylsulfoxide; the cosolvent is selected from at least one of a fatty alcohol and an aromatic alcohol; and the accelerator is selected from at least one of acids and phenols. The paint removing composition has higher paint stripping efficiency and less corrosion to a substrate.

Description

technical field [0001] The invention relates to the technical field of paint removers, in particular to a paint remover composition and a preparation method thereof. Background technique [0002] On some aluminum alloy workpieces with more complex structures, powder piles are more likely to occur at the corners during powder electrostatic spraying. In this case, rework and paint removal are required. At present, the more commonly used solution in the industry is to use a strong paint remover to remove the paint from the powder layer, then clean it and respray it. [0003] Generally, an inorganic paint remover is used for paint removal, such as an alkaline paint remover. Alkaline paint strippers take a long time to remove paint and require certain heating conditions, and have certain corrosiveness to metal substrates. And organic paint strippers have received extensive attention because of the advantages of high paint stripping efficiency. The main component of organic pai...

Claims

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Application Information

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IPC IPC(8): C09D9/00
CPCC09D9/005
Inventor 张少林孙昌盛杨淦伟王晓利袁磊柯浪滔
Owner SHENZHEN WAVE TELECOMM TECH CO LTD