Tough self-repair metal anti-corrosion paint and preparation method thereof

Abstract

The invention relates to a tough self-repair metal anti-corrosion paint and a preparation method thereof. The tough self-repair metal anti-corrosion paint comprises an alkyl silane ester, zinc powder, additives, auxiliaries and the like and is prepared by mixing according to a certain weight percentage and uniformly mixing double components. The tough self-repair metal anti-corrosion paint provided by the invention can be used as a steel high-performance anti-rust paint, is suitable for production by an assembly line, has the advantages of fast dryness, high efficiency, low cost, good welding and cutting performances, excellent impact resistance and wear resistance, excellent low-temperature curing performance and solvent resistance, relatively good flexibility and adhesion and relatively good anti-corrosion effect and can be matched with most of paint systems. More importantly, a metal anti-corrosion primer provided by the invention can not only meet green and environment-friendly requirements, but also realize a smart tough self-repair anti-corrosion paint; after a coating is damaged, part of silicon-oxygen-silicon chemical bonds can be opened by resin, the damaged coating surface can be repaired by self-migration and self-assembly effects of silicon-oxygen-silicon and the anti-corrosion effect can be further continuously maintained.

Description

technical field [0001] The invention relates to the field of anti-corrosion coatings, in particular to a tough self-repairing metal anti-corrosion coating and a preparation method thereof. Background technique [0002] Metal materials are an important material basis for the development of human society, but the corrosion of a large number of metal materials, especially steel materials, has brought huge losses to human society. According to reports, in 2013, the economic loss caused by corrosion of metal materials in the United States was about 800 billion U.S. dollars, which was equivalent to 4.5 wt% of the U.S. gross national product (GNP) in that year. Corrosion of metallic materials in other industrialized countries accounts for approximately 3-5 wt% of their GNP. The annual loss of corrosion of metal materials in my country is 500-1000 billion yuan, which accounts for a relatively large proportion of GDP. It can be seen that corrosion of metal materials has become one ...

AI Technical Summary

Problems solved by technology

Although traditional solvent-based anti-corrosion coatings have good anti-corrosion properties, their chemical bonds are single, hard and brittle, difficult to process, poor in stain resistance and alkali resistance, and a large amount of organic solvents will volatilize during the production and coating process

It not only damages the performance of the coating film, threatens the health of operators and causes environmental pollution, but also is not conducive to the sustainable development of the national economy.

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