Waterborne antirust paint with rust and preparation method of paint

Abstract

The invention discloses a waterborne antirust paint with rust and a preparation method of the paint, and belongs to the technical field of paints. The paint comprises a component A and a component B which are mixed at the time of use; the component A is prepared from waterborne epoxy resin, modified aluminum tripolyphosphate, a conversion agent gallic acid and other aids commonly used for paints;the component B is a homemade waterborne modified tea polyphenol which is prepared through a Mannich reaction of tea polyphenol, acetaldehyde and dimethylamine. The paint prepared by means of the method has chelation with a matrix in the use process, the adhesive force of the paint is greatly increased, the conversion of the rust is facilitated, and the paint has excellent curing force and corrosion resistance and is environmentally friendly and free of pollution.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a water-based anti-rust coating with rust. Background technique [0002] Anti-rust paint with rust is a kind of coating that can be directly applied on a certain rusted metal surface. By stabilizing, passivating or transforming the rust, the active rust can be turned into a harmless substance, so as to achieve the dual purpose of rust removal and protection. anti-rust paint. With the improvement of people's living standards, people's performance requirements for coatings are also getting higher and higher. At present, most domestic antirust paints with rust are solvent-based paints. In order to achieve the purpose of long-term antirust, most of them are added with zinc chrome yellow and other antirust pigments containing toxic heavy metals, which are easy to cause environmental pollution; at the same time, acrylic antirust emulsion Among them, phosphate-containing acrylic acid monomers ...

AI Technical Summary

Problems solved by technology

At present, most of the domestic anti-rust paints with rust are solvent-based paints. In order to achieve the purpose of long-term anti-rust, most of the anti-rust pigments containing toxic heavy metals such as zinc chrome yellow are added, which is easy to cause environmental pollution; at the same time, acrylic anti-rust emulsion Among them, phosphate-containing acrylic acid monomers participate in acrylic acid emulsion polymerization, and use the combination of phosphoric acid functional groups and metal substrates to remove rust.

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