Modified epoxy resin coating

Abstract

The invention discloses a modified epoxy resin coating. The coating comprises a component A and a component B in a weight ratio of (80-100):(10-18), wherein the component A is prepared from the following raw materials in parts by weight: 30-46 parts of aliphatic glycidyl ether epoxy resin, 20-30 parts of acrylic acid emulsion, 10-16 parts of modified alkyd resin, 5-10 parts of polyurethane, 2-10 parts of allyl glycidyl ether, 10-30 parts of polypyrrole hollow spheres, 10-20 parts of titanium dioxide microspheres, 3-8 parts of quartz sands, 3-6 parts of mica iron oxide, 1-3 parts of cotton linter, 1-10 parts of macroporous type-II strong base anion resin, 5-10 parts of kaolin, 1-3 parts of zinc oxide, 2-6 parts of sodium polyacrylate, 20-30 parts of polyvinyl alcohol, 0.5-2.5 parts of polyorganosiloxane, 0.2-0.9 part of caster oil, 0.5-1.8 parts of a wetting agent and 20-60 parts of deionized water; and the component B is prepared from the following raw materials in parts by weight: 5-10 parts of propylene glycol monomethyl ether acetate, 15-30 parts of aminoethylpiperazine, 10-20 parts of m-xylylenediamine, 10-30 parts of propanediol butyl ether and 20-40 parts of deionized water. The modified epoxy resin coating has good adhesion and excellent corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a modified epoxy resin coating. Background technique [0002] Nowadays, the traditional anti-corrosion coatings contain heavy metal compounds, which are harmful to the environment and the human body, and are gradually discontinued; and now most of the anti-corrosion coatings are based on environmentally friendly chlorinated rubber modified resins. The corrosion performance and wear resistance are weak, which can no longer meet the new standards and requirements in the anti-corrosion market; currently, epoxy resin anti-corrosion coatings occupy an important position in the anti-corrosion field. Epoxy resin itself is thermoplastic and its molecular weight is not high. It must be cross-linked with a curing agent to form a network-like macromolecule in order to show the advantages of epoxy resin and form an excellent coating; but the current epoxy resin coating Adhesion and flexibi...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, the traditional anti-corrosion coatings contain heavy metal compounds, which are harmful to the environment and the human body, and are gradually discontinued; but now most of the anti-corrosion coatings are based on environmentally friendly chlorinated rubber modified resins. The corrosion performance and wear resistance are weak, which can no longer meet the new standards and requirements in the anti-corrosion market; currently, epoxy resin anti-corrosion coatings occupy an important position in the anti-corrosion field

Epoxy resin itself is thermoplastic and its molecular weight is not high. It must be cross-linked with a curing agent to form a network-like macromolecule in order to show the advantages of epoxy resin and form an excellent coating; but the current epoxy resin coating Adhesion and flexibility can not meet the demand, need to be improved urgently