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Anti-corrosion self-restoration paint

A self-repairing and coating technology, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of difficult scale production of nano-containers, and achieve a simple and easy-to-control preparation method, strong anti-corrosion performance, and low cost Effect

Active Publication Date: 2017-12-15
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the capacity of the existing nano-container-loaded corrosion inhibitor is less than 20%, and the doping amount in the metal coating is generally lower than 5%, and the nano-container is not easy to achieve industrial scale production, the technology of self-repair coating The level still needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Disperse the synthesized polydivinylbenzene microspheres with a particle size of 1 μm and carboxyl groups (the pH response range is 6-10, and the loaded corrosion inhibitor can be released faster when the pH value increases) to 500 g / L The corrosion inhibitor benzotriazole ethanol solution was mixed and stirred at 70°C for 10 hours, washed with deionized water and dried to obtain the self-repairing component. Add epoxy resin to 5% of the total amount of paint, stir at 500rpm for 10 minutes until the mixture is uniform, then add curing agent polyamide to the mixture, stir it evenly, and then spray it on the iron plate. The surface of the iron plate after spraying is smooth and smooth as figure 1 as shown, figure 2 After 130h salt spray test (A) commercially available epoxy zinc-rich primer (B) self-made intelligent anti-corrosion self-repairing coating rust comparison chart at scratches, it can be seen that the self-repairing epoxy primer can significantly improve the ...

Embodiment 2

[0042] The synthetic polydivinylbenzene microspheres with a particle size of 1 μm (pH response range of 6-9, and can release the loaded corrosion inhibitor faster when the pH value rises) were dispersed to 1000 g / L The corrosion inhibitor benzotriazole ethanol solution was mixed and stirred at 70°C for 24 hours, washed with deionized water and dried to obtain the self-repairing component. Add epoxy resin to 10% of the total mass of the paint, stir at 700rpm for 30 minutes until evenly mixed, then add curing agent polyamide to the mixed solution, stir evenly, and then apply it to the iron plate. The surface of the iron plate after painting is smooth and smooth as image 3 as shown, Figure 4 After 180h salt spray test (A) commercially available epoxy zinc-rich primer (B) self-made intelligent anti-corrosion self-repairing coating rust comparison chart at scratches, it can be seen that the self-repairing epoxy primer can significantly improve the anti-corrosion performance of t...

Embodiment 3

[0044]The synthesized polystyrene-based microspheres with a particle size of 0.1 μm (pH response range of 6-9, and can release the loaded corrosion inhibitor faster when the pH value rises) were dispersed to 500 g / L of corrosion inhibitor agent benzotriazole ethanol solution, mixed and stirred at 50°C for 10 h, washed with deionized water and dried to obtain the self-repairing component. Add epoxy resin according to the mass ratio of 5% of the total amount of paint, stir at 500rpm for 10 minutes until mixed evenly, then add curing agent polyamide into the mixed solution, stir evenly, and then apply it to the aluminum plate.

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Abstract

The invention discloses anti-corrosion self-restoration paint and a preparation method thereof. The anti-corrosion self-restoration paint is prepared from 5 to 10 percent of self-restoration ingredients in percentage by mass, wherein the self-restoration paint is paint of anti-rust filling materials. The self-restoration ingredients can be microspheres loaded with corrosion inhibitors; the loading quantity of the corrosion inhibitors is 10 to 30 percent of the mass of the microspheres. The prepared anti-corrosion self-restoration paint has the advantages that when the coating is damaged through corrosion, corrosion agent molecules are automatically released; the contact of metal with the corrosion media is prevented, so that the effect of preventing the further enhancement of the corrosion can be prevented; the sensitivity is high; the anti-corrosion performance is high. The preparation method is simple; the control is easy; no pollution is caused; the cost is low; the anti-corrosion self-restoration paint is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of metal anticorrosion coatings, and relates to an anticorrosion self-repairing coating capable of effectively inhibiting metal or other corrosion for a long time and a preparation method thereof. Background technique [0002] The direct economic loss caused by metal corrosion in the world is about 700 billion U.S. dollars every year. The economic loss caused by metal corrosion in my country is huge, accounting for 3% of the gross national product (GNP). Therefore, the corrosion and protection of metal materials have always been people's The focus of the research. In order to slow down and prevent metal corrosion reactions and prolong the life cycle of metal products, metal equipment usually needs to be added with an anti-corrosion coating on its surface during the manufacturing process. This technology can not only maintain the original physical and mechanical properties of metal materials, but also has good anti-cor...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D163/00
CPCC08K5/3472C08K5/3475C08K5/378C08K5/46C08K9/12C09D5/08C09D163/00
Inventor 李国良杨硕王军鹏周士乐齐涛
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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