Fluorine-silicon composite visible-light-catalyzed antibacterial antifouling coating material and preparation method thereof

Abstract

The invention relates to a coating material preparation technology, and provides a fluorine-silicon composite visible-light-catalyzed antibacterial antifouling coating material and a preparation method thereof. The coating material comprises the following components in percentage by mass: 20-60% of a fluorine-silicon-containing acrylic resin solution, 0.1-20% of propylene glycol methyl ether acetate, 0.1-20% of a nano semiconductor material with photocatalytic response, 0.1-20% of nano silicon oxide and 30-75% of an organic solvent, wherein the nano semiconductor material with photocatalytic response is nano silver vanadate or a combination of nano silver vanadate and a reinforced nano semiconductor material, and the reinforced nano semiconductor material is at least one of nano titanium dioxide and nano silver powder. According to the invention, the fluorine-silicon composite visible-light-catalyzed antibacterial antifouling coating material has the advantages of high light transmittance, good scrub resistance and good solvent resistance, and has the self-cleaning antifouling function; and by introducing the photocatalytic antibacterial nano-filler, fouling microorganisms are inactivated at the initial stage of microbial fouling formation, and a long-acting self-cleaning effect is achieved under the characteristic of low surface energy of the coating.

Description

technical field [0001] The invention relates to coating preparation technology, in particular to a fluorine-silicon composite visible light catalyzed antibacterial and antifouling coating and a preparation method thereof. The coating can be used for antibacterial and antifouling protection of glass and other transparent or opaque inorganic non-metallic or metal surfaces, as well as for anticorrosion and antifouling of plastic surfaces and metal plated parts, wear-resistant coatings, insulation and antifouling of electronic components . Background technique [0002] In many occasions in life, glass is used as a decorative or protective surface material. However, the glass surface is rich in hydroxyl groups, which is a hydrophilic surface. When it encounters rainy days or water vapor in the air encounters a supercooled glass surface, a water film will be formed on the glass surface, which is easily contaminated by dust and other sundries. For example, the glass curtain wall ...

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Problems solved by technology

[0005] However, the low surface energy of the coating film obtained by polymerization of a single fluorine-containing acrylate makes it easy to separate from the substrate after curing, and the hardness of the coating obtained by silicon-containing acrylate does not meet the requirements.

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