Novel solvent-free high-performance epoxy anticorrosive paint for steel surface

Abstract

The invention relates to a high-performance solvent-free epoxy anticorrosive paint for a steel surface and a preparation method thereof. The high-performance solvent-free epoxy anticorrosive paint comprises a component A and a component B, wherein the component A comprises 40 weight percent of epoxy resin 830, 30 weight percent of epoxy resin 618 and 30 weight percent of toughening agent (self-made polyurethane epoxy resin); and the component B comprises 50 weight percent of amine hardener, 10 weight percent of zinc phosphate, 10 weight percent of aluminium trippolyhosphate, 10 weight percent of micaceous iron oxide, 5 weight percent of talcpowder (800 meshes), 2 weight percent of precipitated barium sulfate (800 meshes) and 13 weight percent of aluminum powder. The high-performance solvent-free epoxy anticorrosive paint has the characteristics of no solvent, low viscosity, high anticorrosion performance and the like.

Description

Technical field: [0001] The invention relates to the field of heavy-duty anti-corrosion coatings for steel surfaces, in particular to a heavy-duty anti-corrosion coating for steel surfaces which uses epoxy resin as a main film-forming substance, cycloaliphatic amine as a curing agent, and polyurethane epoxy as a toughening agent. Background technique: [0002] With the continuous enhancement of people's awareness of environmental protection and the increasingly stringent environmental protection laws and regulations, the development of environmentally friendly coatings at home and abroad has also intensified, and the development of solvent-free epoxy heavy-duty anti-corrosion coatings has gradually been paid attention to. However, some current solvent-free epoxy anti-corrosion coatings mainly use polyamide or modified aromatic amine curing agent, which is difficult to construct, the resin viscosity is relatively high, it is difficult to mix polyamide and epoxy resin evenly, a...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of high-performance solvent-free anticorrosion paint and preparation method that is applicable to steel surface, and the main technical problem that it will solve is to aim at the problem of high viscosity, high solvent content of existing epoxy anticorrosion paint, thereby provide a A solvent-free high-performance epoxy anti-corrosion coating suitable for use on steel surfaces; the invention adopts domestic and foreign advanced and excellent-performance curing agent cycloaliphatic amine, non-toxic anti-corrosion pigments, microfibers and new active diluents to prepare environmentally friendly non-toxic coatings. Solvent epoxy heavy duty coating

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