Curable epoxy resin composition

Abstract

The invention discloses a curable epoxy resin composition. The curable epoxy resin composition is characterized by comprising the following components in parts by weight: 20 to 30 parts of epoxy resin, 15 to 25 parts of 3-allyl isocyanate, 4 to 12 parts of a curing agent, 2 to 8 parts of a curing accelerator, 3 to 9 parts of epoxy phosphate, 1 to 5 parts of benzimidazole, 3 to 10 parts of titanium dioxide, 5 to 15 parts of an inorganic filler, 2 to 7 parts of a coupling agent, 1 to 6 parts of a dispersing agent, 2 to 9 parts of a thickening agent and 25 to 35 parts of deionized water. According to the curable epoxy resin composition provided by the invention, water serves as a dispersing medium and the content of an inorganic / organic solvent or a volatile organic compound is low, so environmental pollution is avoided. Coating has the advantages of high curing speed, high permeability, corrosion resistance and high adhesion property, and is applicable to the industries such as printing, electron, coating and printing ink.

Description

technical field [0001] The present invention relates to a curable epoxy resin composition. Background technique [0002] Epoxy resin is an important class of thermosetting resin, and is the most widely used matrix resin in polymer composite materials. The cured epoxy resin has excellent bonding performance, wear resistance, mechanical performance, electrical insulation performance and chemical stability. , high and low temperature resistance, low shrinkage, easy processing and low cost, etc., are widely used in adhesives, light industry, coatings, electrical and electronic insulation materials and other fields. [0003] However, commonly used epoxy resins have low solid content and contain a large amount of organic solvents, which are likely to cause volatilization of organic solvents during use, and these organic solvents include toluene and other substances that are harmful to the environment and humans. At the same time, due to the high viscosity and surface tension of t...

AI Technical Summary

Problems solved by technology

[0003] However, commonly used epoxy resins have low solid content and contain a large amount of organic solvents, which are easy to cause organic solvents to volatilize during use, and these organic solvents include substances harmful to the environment and humans such as toluene

At the same time, due to the high viscosity and surface tension of the epoxy resin system, it is difficult to diffuse into the substrate, and it is difficult to have a large bonding force with the substrate.

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