Novel nanometer titanium dioxide self-cleaning fluorine-carbon aluminum single sheet as well as low-temperature preparation method and application thereof

Abstract

The invention discloses a novel nanometer titanium dioxide self-cleaning fluorine-carbon aluminum single sheet as well as a low-temperature preparation method and application thereof. The surface of the fluorine-carbon aluminum single sheet is coated with a self-cleaning nanometer titanium dioxide film or a nanometer titanium dioxide and silicon dioxide composite film; the film is uniformly distributed on the surface of the fluorine-carbon aluminum single sheet, and thickness of the film is 1-3 micrometers; and after being irradiated by ultraviolet light, the nanometer titanium dioxide film has super-hydrophilic property and photocatalytic property, thus, the self-cleaning effect is realized. The novel nanometer titanium dioxide self-cleaning fluorine-carbon aluminum single sheet related in the invention has the following advantages: (1) the thickness of the titanium dioxide film is uniform, nanometer titanium dioxide crystal particles are uniformly distributed, and the titanium dioxide film has super-hydrophilic property and a better self-cleaning function; (2) the film has photocatalytic property, so that residual organic pollutants on the surface of the film can be decomposed, and the self-cleaning effect is further improved; and (3) the original performances, such as weatherproof performance, chemical corrosion resistance and the like, of the fluorine-carbon aluminum single sheet are retained.

Description

technical field

[0001] The invention belongs to the field of new building materials, and in particular relates to a novel nano-titanium dioxide self-cleaning fluorocarbon aluminum veneer and its low-temperature preparation method and application. Background technique

[0002] Fluorocarbon aluminum veneer has the advantages of light weight, high strength, high rigidity, strong corrosion resistance and weather resistance, no light pollution, no waste gas generation, strong fire resistance, long service life, rich and bright colors, and good decorative effects. Since it was introduced into China in the early 1980s, it has developed rapidly and been widely used. However, after nearly 30 years of application practice, people have gradually found that due to the hydrophobicity of the fluorocarbon coating on the surface, the organic pollutants attached to the surface of the coating are difficult to be washed away by rain, and the rainwater is aggregated on the surface of the fluoro...

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