Preparation method of nanometer enhanced ultraviolet curing antifogging agent

Abstract

The invention relates to preparation of an antifogging material, and aims to provide a preparation method of a nanometer enhanced ultraviolet curing antifogging agent. The method comprises the following steps: uniformly mixing a carbon nitride nanoparticle dispersion liquid, deionized water and acetic acid, dropwise adding organosiloxane, and continuously stirring; heating and concentrating the product to obtain modified carbon nitride nanoparticles; uniformly mixing the silicon-acrylate modified carbon nitride compound with an acrylate monomer, 2-hydroxy-2-methyl-phenylacetone and absolute ethyl alcohol, and irradiating with strong light to obtain a silicon-acrylate modified carbon nitride compound; and then uniformly mixing with a fluorine-containing acrylate monomer, a propoxylated polyfunctional acrylate monomer, an aliphatic polyurethane acrylate monomer, a vinyl ether monomer, 2-hydroxy-2-methyl-phenylacetone and absolute ethyl alcohol, so as to obtain the antifogging agent product. The problem that hydrophilicity, water resistance, hardness and flexibility in a traditional ultraviolet curing system are difficult to consider at the same time is solved. Compared with the prior art, the product provided by the invention has the advantages of good water resistance and high hardness.

Description

technical field [0001] The invention relates to the preparation of anti-fog materials, in particular to a preparation method of a nano-enhanced ultraviolet curing anti-fog agent. Background technique [0002] Transparent optical materials, such as silicate glass, polycarbonate, polyester, polymethyl methacrylate, polyethylene, etc., are common materials in modern people's production and life, and have been widely used in various fields of the national economy, such as spectacle lenses, Bathroom glass or mirrors, vehicle windshields and rearview mirrors, observation windows for measuring instruments in laboratories, plastic sheets or glass curtain walls for greenhouses, etc. However, under certain conditions, transparent optical materials often have the problem of fogging, which brings inconvenience to the use of transparent optical materials, and even causes serious consequences that cannot be ignored. Therefore, how to solve the fogging problem of transparent optical mater...

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Problems solved by technology

Thermosetting coatings require a certain temperature to cross-link and solidify polymer materials into films, which limits their application on the surface of some heat-sensitive transparent optical materials, while UV-curing anti-fog coatings can effectively solve the problem of thermal-curing anti-fog coatings. this question

[0004] However, the polymer UV-cured anti-fog coating formed by existing products generally has low hardness and insufficient wear resistance. If a high-functionality monomer is introduced to increase the cross-linking density and increase its hardness, its hydrophilic anti-fog performance will be greatly improved. reduce

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