Anticorrosive composite coating and preparation method thereof

Abstract

The invention discloses an anticorrosive composite coating and a preparation method thereof. The anticorrosive composite coating is prepared from the following formula components in parts by mass: 6 to 8 parts of zinc powder, 1 to 3 parts of palmitoleic acid, 4 to 6 parts of isopropanol, 11 to 15 parts of aluminum powder, 5 to 7 parts of polyethylene glycol, 4 to 6 parts of polypropylene glycol, 15 to 17 parts of alumina powder, 2 to 4 parts of normal temperature curing agent, 6 to 10 parts of ethanol aqueous solution, 10 to 20 parts of nickel powder, 6 to 10 parts of ammonium chloride, 7 to 9 parts of dicerium trioxide, 6 to 8 parts of silicon dioxide, 9 to 11 parts of monopotassium phosphate and 10 to 12 parts of carbonate. The anticorrosive composite coating disclosed by the invention has the advantages of high corrosion resistance, high protecting capability, good wear resistance, attractiveness and ideal decorativeness, and can protect a steel fastener matrix.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an anti-corrosion composite coating and a preparation method thereof. Background technique [0002] At present, the anti-corrosion measures for steel metal fasteners or connectors used in the marine environment at home and abroad mainly include electroplating cadmium, electrogalvanizing, hot-dip galvanizing and other technologies. Due to the toxicity of cadmium, the susceptibility to hydrogen embrittlement of electroplating, the aging performance of electroplated zinc passivation film at high temperature, and the insufficient corrosion resistance of hot galvanizing, the above-mentioned technologies cannot meet the growing demand for marine environment. Anti-corrosion requirements using steel metal fasteners. Therefore, the research of new technologies to replace the traditional anti-corrosion coating and coating technology of metal steel fasteners in marine environment has beco...

AI Technical Summary

Problems solved by technology

Due to the toxicity of cadmium, the susceptibility to hydrogen embrittlement of electroplating, the aging performance of electroplated zinc passivation film at high temperature, and the insufficient corrosion resistance of hot galvanizing, the above-mentioned technologies cannot meet the growing demand for marine environment. Corrosion Requirements Using Steel Metal Fasteners