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Antifog self-cleaning glass and preparation method thereof

A self-cleaning, anti-fog technology, applied in chemical instruments and methods, glass/slag layered products, metal/metal oxide/metal hydroxide catalysts, etc. Fog vision, unclear, etc.

Inactive Publication Date: 2014-01-08
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] One of the purposes of the present invention is to solve technical problems such as difficult cleaning of high-rise building curtain walls caused by the extensive use of above-mentioned glass products in the construction industry and unclear vision caused by easy fogging on the glass surface

Method used

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  • Antifog self-cleaning glass and preparation method thereof
  • Antifog self-cleaning glass and preparation method thereof
  • Antifog self-cleaning glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] An anti-fog self-cleaning glass, comprising a glass substrate and an anti-fog self-cleaning film obtained by dipping and pulling on it, said TiO 2 thin film, that is, nano-α-Fe 2 o 3 to TiO 2 It is obtained by doping, wherein the doping ratio of Fe is calculated by molar ratio, that is, Fe:Ti is 0:100, 1.05:100, 1.1:100, 1.25:100 respectively.

[0054] The glass substrate is flat glass with a thickness of 4mm.

[0055] The above-mentioned preparation method of an anti-fog self-cleaning glass specifically comprises the following steps:

[0056] (1) Preparation of Fe-doped TiO by solution-gel method 2 Precursor titanium alkoxide gel

[0057] Calculated by molar ratio, that is, tetra-n-butyl titanate: absolute ethanol: glacial acetic acid: deionized water is a ratio of 1:10:1:1, and tetra-n-butyl titanate, absolute ethanol, glacial acetic acid and deionized Solution X is obtained after mixing ionic water;

[0058] (2) Add nanometer α-Fe with Fe:Ti molar ratio...

Embodiment 2

[0064] An anti-fog self-cleaning glass, comprising a glass substrate and an anti-fog self-cleaning film obtained by dipping and pulling on it, said TiO 2 thin film, that is, nano-α-Fe 2 o 3 to TiO 2 It is obtained by doping, wherein the doping ratio of Fe is calculated by molar ratio, that is, Fe:Ti is 1.1:100;

[0065] The substrate is flat glass with a thickness of 4 mm.

[0066] The above-mentioned preparation method of an anti-fog self-cleaning glass specifically comprises the following steps:

[0067] (1) Preparation of Fe-doped TiO by solution-gel method 2 Precursor titanium alkoxide gel

[0068] Calculated by molar ratio, that is, tetra-n-butyl titanate: absolute ethanol: glacial acetic acid: deionized water is a ratio of 1:10:1:1, and tetra-n-butyl titanate, absolute ethanol, glacial acetic acid and deionized Solution X is obtained after mixing ionic water;

[0069] (2) Add nanometer α-Fe with a molar ratio of Fe:Ti of 1.1:100 to four equal volumes of solution ...

Embodiment 3

[0075] An anti-fog self-cleaning glass, comprising a glass substrate and an anti-fog self-cleaning film obtained by dipping and pulling on it, said TiO 2 thin film, that is, nano-α-Fe 2 o 3 to TiO 2 It is obtained by doping, wherein the doping ratio of Fe is calculated by molar ratio, that is, Fe:Ti is 1.1:100;

[0076] The glass substrate is flat glass with a thickness of 4mm.

[0077] The above-mentioned preparation method of an anti-fog self-cleaning glass specifically comprises the following steps:

[0078] (1) Preparation of Fe-doped TiO by solution-gel method 2 Precursor titanium alkoxide gel

[0079] Calculated by molar ratio, that is, tetra-n-butyl titanate: absolute ethanol: glacial acetic acid: deionized water is a ratio of 1:10:1:1, and tetra-n-butyl titanate, absolute ethanol, glacial acetic acid and deionized Solution X is obtained after mixing ionic water;

[0080] (2) Add nanometer α-Fe with Fe:Ti molar ratio of 1.25:100 to three equal volumes of soluti...

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Abstract

The invention discloses antifog self-cleaning glass and a preparation method thereof. The antifog self-cleaning glass comprises a glass matrix and an antifog self-cleaning film on the glass matrix, wherein the antifog self-cleaning film is obtained by a dip-coating method and is preferably a transparent Fe<3+> / TiO2 film with thickness of 50-300nm; the Fe<3+> / TiO2 film is obtained by doping nano alpha-Fe2O3 in TiO2; the molar ratio of Fe to Ti is (1.05-1.25):100. The preparation method comprises the steps of firstly adopting a sol-gel method to prepare titanium alkoxide gel and then coating the titanium alkoxide gel on the surface of the clean glass matrix by the dip-coating method to form the uniform and transparent Fe<3+> / TiO2 film, thus obtaining the antifog self-cleaning glass. The antifog self-cleaning glass has higher photocatalytic activity, superstrong hydrophilicity, bactericidal ability and antifog and self-cleaning abilities, is ecologically and has environment-friendly effect and has good usability and wide application range.

Description

technical field [0001] The present invention mainly relates to TiO 2 The application of thin film in the field of new glass material development is a kind of 2 The hydrophilicity and photocatalysis of the film meet the requirements of new glass materials such as anti-fog and self-cleaning. Background technique [0002] At present, the measures for glass anti-fog self-cleaning in the market are mainly divided into the following four directions: 1. Rinse the glass surface with anti-fog cleaner according to the demand to form a layer of water film to maintain its function for a certain period of time; 2. The surface of the glass substrate is coated with a layer of transparent electrothermal film, and the two ends of the electrothermal film are connected with electricity. By increasing the surface temperature of the glass, it is difficult for the mist to condense on the glass surface; 3. Coating a layer of polymer material film such as hydrophilic resin on the glass surface, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/06B32B33/00C03C17/23B01J23/745
Inventor 吴江蔡雁南冯巧波李灿胡程镇杨思源张冲倪补杨强张柳柳
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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