A fluorine-silicon composite visible light catalyzed antibacterial antifouling coating and preparation method thereof

Abstract

The invention relates to coating preparation technology, and aims to provide a fluorine-silicon composite visible light-catalyzed antibacterial and antifouling coating and a preparation method thereof. The mass percentage content of each component in the coating is: fluorine-containing silicon acrylic resin solution 20%-60%, propylene glycol methyl ether acetate 0.1%-20%, nano-semiconductor material with photocatalytic response 0.1%-20%, nano Silicon oxide 0.1%-20%, organic solvent 30%-75%; the nano-semiconductor material with photocatalytic response refers to nano-silver vanadate, or a combination of nano-silver vanadate and enhanced nano-semiconductor material; the enhanced The nano-semiconductor material refers to at least one of nano-titanium dioxide or nano-silver powder. The invention has high light transmittance, good scrubbing resistance and solvent resistance, and has the function of self-cleaning and antifouling. By introducing photocatalytic antibacterial nano-fillers, the fouling microorganisms are inactivated at the initial stage of microbial fouling, and the long-term self-cleaning effect is achieved under the low surface energy of the coating itself.

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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