Water-dispersed fluorine-containing hydroxyl acrylic-epoxy ester heterozygous body resin and coating thereof

Abstract

The invention relates to a water-dispersed fluorine-containing hydroxyl acrylic-epoxy ester heterozygous body which is prepared by the following steps of: mixing epoxy resin, fatty acid and a certain quantity of acrylic acid and carrying out catalytic reaction at a temperature of 100 DEG C to obtain epoxy ester resin single acrylate; and then adding an acrylic acid monomer to obtain a product by utilizing an unsaturated bond and a free radical copolymer thereof. The invention has the beneficial effects that epoxy ester resin is obtained by the modified acrylic acid and is reacted with the acrylic acid monomer; the defect of low grafting rate of epoxy ester modified acrylic resin is overcome; and the compatibility of a system is improved. The resin is matched with amino resin to form a film forming matter, can be prepared into high-temperature baking type water-borne coating and can also be applied to the surface of a metal antirust and glass product.

Description

technical field [0001] The invention relates to a water-based acrylic resin, in particular to a water-dispersed fluorine-containing hydroxyl acrylic acid-epoxy ester hybrid resin and its coating, as well as the coating using it as the main film-forming substance. Background technique [0002] Copolymers based on vinyl monomers such as acrylate, methacrylate, and styrene as the main raw material are called acrylic resins, and coatings that use them as film-forming base materials are called acrylic resin coatings. This type of coating has the advantages of light color, color retention, gloss retention, weather resistance, corrosion resistance and pollution resistance. Water-based acrylic coatings have the advantages of low price, safe use, saving resources and energy, reducing environmental pollution and public nuisance, and have become one of the main research and development directions of the current coatings industry. Due to the defects of low crosslinking density, poor so...

AI Technical Summary

Problems solved by technology

In this technology, the viscosity of the resin is too high during the synthesis process, which is not conducive to production, and requires high temperature curing, which is not conducive to wide application

[0005] Japan's Hitachi also launched a water-based epoxy / acrylic paint, which is based on the addition of unsaturated acid to epoxy resin, and then copolymerized with acrylic acid to obtain epoxy / acrylic emulsion. This product requires more alcohol ether additives , the VOC content is high, and the paint film is still insufficient in terms of water resistance and corrosion resistance

Images