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

A nano-titanium dioxide, fluorocarbon aluminum veneer technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, coating, etc., can solve the problem of poor anti-fouling performance, and achieve uniform distribution, good self-cleaning function, and uniform thickness. Effect

Inactive Publication Date: 2015-05-20
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new type of nano-titanium dioxide self-cleaning fluorocarbon aluminum veneer, its preparation method and its application in view of the limitations of the traditional fluorocarbon aluminum veneer with poor stain resistance.

Method used

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

Examples

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Effect test

Embodiment 1

[0027] Example 1: Low-temperature preparation of titanium dioxide film on the surface of fluorocarbon aluminum veneer

[0028] Measure 5ml of tetrabutyl titanate, add it to 10ml of absolute ethanol, then add 2ml of glacial acetic acid dropwise thereto, and mix thoroughly at room temperature to obtain solution A. Take 10ml of absolute ethanol, 30ml of 0.2mol / l hydrochloric acid solution, 1ml of 1% acetic acid solution and 1ml of KH570 and mix thoroughly to obtain solution B. Slowly add solution B to solution A, mix well and heat to reflux at 80°C for 10h to obtain nano-TiO 2 Sol, aged for 1-3d for later use. Nano TiO 2 The sol is sprayed on the surface of the pretreated fluorocarbon aluminum veneer to form a layer of nano-TiO 2Heat treatment at 200°C for 3 hours after the thin film to obtain nano-titanium dioxide self-cleaning fluorocarbon aluminum veneer, such as figure 1 , figure 2 shown.

Embodiment 2

[0029] Example 2: Low-temperature preparation of titanium dioxide / silicon dioxide composite film on the surface of fluorocarbon aluminum veneer

[0030] Measure 5ml of tetrabutyl titanate, add it to 10ml of absolute ethanol, then add 2ml of glacial acetic acid dropwise thereto, and mix thoroughly at room temperature to obtain solution A. Take 10ml of absolute ethanol, 30ml of 0.2mol / l hydrochloric acid solution, 1ml of 1% acetic acid solution and 1ml of KH570 and mix thoroughly to obtain solution B. Slowly add solution B to solution A, mix well, and then heat and reflux at 80°C for 10 hours to obtain nano-TiO2 sol; measure 1ml tetraethyl orthosilicate and add 1ml absolute ethanol to fully mix to obtain solution C, drop into solution C Add a mixture of 1ml 1% acetic acid solution and 2ml absolute ethanol, mix well at room temperature to get SiO 2 sol; the freshly prepared SiO 2 Sol and TiO 2 Sol mixing, aging for 1-3d to produce TiO 2 / SiO 2 Composite sol. TiO 2 / SiO ...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04F13/12E01D19/00C09D1/00C01G23/053
Inventor 闫洪艾凡荣李勇
Owner NANCHANG UNIV
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