Fluoropolymer water-based anticorrosive paint

Abstract

The invention relates to fluoropolymer water-based anticorrosive paint. The fluoropolymer water-based anticorrosive paint comprises fluoropolymer water-based resin, zinc dinitrobenzoate, zinc phosphate, zinc molybdate, zinc aluminum phosphate hydrate, cosolvent, anti-flash-rust agent, assistants and deionized water. The fluoropolymer water-based resin is obtained through reaction among polyisocyanate, polyalcohol, hexafluoroisopropanol, oligomer polyalcohol, dimethylolpropionic acid, hydroxyethyl acrylate, acrylic acid type soft-hard monomers and neutralizers. Since the obtained fluoropolymerwater-based anticorrosive paint comprises low-surface-free-energy F-C chains, coatings have high flexibility, heat stability, ageing resistance, chemical inertness, hydrophobicity and corrosion resistance; the fluoropolymer water-based anticorrosive paint is widely applied to water, contamination and corrosion resistance of surfaces of steel structures and concrete in the fields of buildings, chemical engineering, petroleum, electricity, metallurgy, ships, transportation, spaceflight and the like.

Description

technical field [0001] The invention relates to a water-based anti-corrosion coating, in particular to a salt-spray-resistant and weather-resistant fluorine-containing polymer water-based anti-corrosion coating, which belongs to the technical field of water-based functional coatings. Background technique [0002] According to statistics, the metals that corrode and rust each year in the world account for more than 20% to 40% of the annual output, and more than 100 million tons of metals are scrapped due to corrosion every year, and the economic losses caused are about 1 trillion US dollars; The economic loss caused by metal corrosion accounts for about 1.5% to 3.5% of the gross national product. Since steel accounts for 95% of metal usage, and 70% of which is used in an atmosphere prone to rust, the corrosion protection of steel is of great significance. [0003] Coating is an indispensable material for protecting infrastructure in daily life. It is widely used in buildings...

AI Technical Summary

Problems solved by technology

However, its polyurethane resin and acrylic resin are physically mixed, and its compatibility and crosslinking density are not ideal.

[0007] At present, resins with a single property can no longer meet the requirements of the coatings market. Fluorine-containing polyurethane modified acrylic resin water-based coatings have the special properties of polyurethane and fluorine atoms, high cross-linking density and low surface tension, which is not conducive to the adhesion of pollutants on the surface, and at the same time introduce acrylic resin with lower price, so that it has good economic and practical value

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