A kind of phosphate ester modified acrylic acid waterborne industrial coating

Abstract

The invention relates to a phosphate modified acrylic resin water-based industrial coating. The coating consists of a phosphate modified acrylate core-shell emulsion, a cosolvent, a substrate promoter, a nano functional material, color paste, an auxiliary agent and deionized water, wherein the phosphate modified acrylate core-shell emulsion is prepared from acrylate soft and hard monomer, acrylicacid, alkyl acrylate phosphate and a neutralizing agent through reaction. The phosphate modified acrylic water-based industrial coating provided by the invention has excellent adhesive force, water resistance, acid and alkali resistance, aging resistance, salt spray resistance, flash rust resistance, rust resistance, corrosion resistance and self flame retardancy.

Description

technical field [0001] The invention relates to a modified acrylic resin water-based coating, in particular to a phosphoric acid ester modified acrylic water-based industrial coating, which belongs to the technical field of water-based functional coatings. Background technique [0002] Coating is an indispensable material for daily production and protection of infrastructure. It is widely used in buildings, various hardware, decoration of industrial products, machinery, vehicles, ships, aircraft, instruments and other fields. Acrylic resin coatings have the advantages of cheap raw materials, good wettability to pigments, etc., and have good construction properties, and have always played an important role in the field of coatings. However, traditional acrylic resin paints contain a large amount of organic solvents, which have a serious impact on the human body and the ecological environment. [0003] With the enhancement of people's awareness of environmental protection, th...

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Problems solved by technology

[0004] Phosphate ester is a commonly used adhesion promoter, which is suitable for various substrates such as copper, iron, aluminum, wood, plastic, etc., especially for the adhesion of copper, iron, aluminum and other metal substrates. Because the strong polarity of the phosphoric acid group has a strong chemical bond with the substrate, but the phosphoric acid ester has a high acid value, generally the amount of addition should not be too much, too much will affect the water resistance of the coating

[0005] At present, water-based acrylic coatings have problems such as short anti-corrosion period, easy to flash rust after coating, poor acid and weather resistance, poor hardness and stability, etc.

At the same time, acrylic paint is an organic substance, which is flammable in case of fire after film formation, produces thick smoke and a large number of harmful substances, which affects its application range, so it is very necessary to modify its flame retardancy

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