Self-repairing conversion permeation type antirust coating based on rusty matrix and preparation method thereof

Abstract

The invention discloses a self-repairing conversion penetration type antirust coating based on a rusty matrix and a preparation method thereof. The self-repairing conversion penetration type antirustcoating is composed of an antirust primer and self-repairing microcapsules. The coating has permeation and self-repairing effects, eleostearic acid contained in the tung oil in the capsule core of theself-repairing microcapsule can also play a role in converting a rust layer, and therefore the purpose of self-repairing of the antirust coating is further achieved on the basis of inheriting the advantages of permeation type and conversion type antirust coating for a rusty matrix.

Description

technical field [0001] The invention belongs to the field of anti-corrosion coatings, and in particular relates to a self-repairing conversion penetration type anti-rust coating based on a rusty substrate and a preparation method thereof. The prepared coating has self-repairing and excellent anti-corrosion properties. Background technique [0002] Affected by the rapid development of the modern metal industry, various metal industries have begun to focus on the anti-corrosion and protection of metal materials. Because of its excellent performance, steel plays a very important role in all aspects of human society. There are a large number of engineering buildings that use steel as the main body. [0003] But the biggest disadvantage of steel is that it is easy to rust, which will bring safety hazards and cause economic losses. Among the many anti-corrosion measures, anti-corrosion coatings are the most effective, economical and widely used. The traditional anti-corrosion co...

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Problems solved by technology

[0015] Compared with the stable anti-rust coatings for substrates with rust, the application range of anti-rust coatings for substrates with penetration and transformation is wider. If you want to take advantage of the advantages of the penetrating and transformation-type antirust coatings for rusty substrates, the existing method is to apply two coatings with different functions on the rusty substrates in stages. This method is complicated to construct; some scholars try to imagine Mixing two kinds of paint together and coating directly, although it seems to reduce the process, but the mixed use of two different functional paints is not easy to control the mixing ratio on site, and it is also unpredictable whether the combined use will affect each other

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