One-step treatment process of sol filming for preparing toughening self-cleaning glass with film of titanium dioxide

A technology of titanium dioxide and tempered glass, applied in the field of tempered self-cleaning glass, which can solve the problems of long self-cleaning glass preparation cycle, inability to use all-weather, poor wear resistance, etc.

Inactive Publication Date: 2007-01-24
WUHAN UNIV OF TECH
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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 solve the above-mentioned problems of self-cleaning glass such as long preparation cycle, poor wear resistance, and inability to use all-weather, and provide a kind of glass for architectural decoration with photocatalytic, self-cleaning, antibacterial, transparent, impact-resistant and wear-resistant functions. The glass has a short production cycle, saves energy, is low in cost, and can be completed by one-step heat treatment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Preparation of titanium dioxide precursor sol plating solution

[0025] Using butyl titanate as the main raw material, a calculated amount of butyl titanate is dissolved in absolute ethanol with a volume ratio of 1:3. Add water and diethanolamine to it, and its volume ratio is water: butyl titanate: diethanolamine = 1:17:5, and finally dilute with ethanol to a total volume of 100, and then filter to obtain a light yellow transparent clear sol, which is allowed to stand More than 12 hours standby;

[0026] 2. Preparation of coated glass substrate: the coating is carried out in a stainless steel tank, the substrate is cut and edged according to the required size, washed, and dried at 105-110°C for 10 minutes;

[0027] 3. Use the dipping method to coat the film, drop the glass substrate at a speed of 50cm / min, dip it in the plating solution obtained in step 1 for 1 minute, then pull it vertically at a speed of 24cm / min, and then dry it at 105-110°C for 15 minutes;

[...

Embodiment 2

[0032] 1. Preparation of silver-doped titanium dioxide precursor sol plating solution

[0033]With butyl titanate as the main raw material, a calculated amount of butyl titanate is dissolved in absolute ethanol with a volume ratio of 1:3, and water and diethanolamine are added therein, and the volume ratio is water: butyl titanate :diethanolamine=1:17:5. Finally, dilute with ethanol to a total volume of 100, then add the bactericidal additive silver salt complex, and the addition amount is 2×10 of the titanium dioxide content. -5 , continue to stir for 1 hour and then filter to obtain a light yellow transparent clear sol, which is left to stand for more than 12 hours for later use;

[0034] 2. Preparation of coated glass substrate: the coating is carried out in a stainless steel tank, the glass substrate is cut and edged according to the required size, washed, and dried at 105-110°C for 10 minutes;

[0035] 3. Use the dipping method to coat the film, drop the glass substrate...

Embodiment 3

[0040] 1. The preparation of titanium dioxide precursor sol plating solution is the same as step 1 of embodiment 1;

[0041] 2. The preparation of the glass substrate is the same as step 2 of Example 1;

[0042] 3. The single-sided spray coating method is used to coat the glass substrate, using the sol spray method to coat the film, put the titanium dioxide sol into the spray tank, turn on the compressed air switch, adjust the air pressure to make the sprayed sol reach the atomization level, and the glass substrate is flat Put it on the fixed bracket, and the bracket is pushed into the spray chamber through the roller transmission device. The nozzles of the spray chamber are set at the upper end and distributed at multiple points, so that a uniform single-sided spray coating can be obtained when the substrate is moved and transported;

[0043] 4. One-step sintering and forming. The single-sided coated glass is placed on the roller conveyor belt, with the film facing up, and is...

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Abstract

The present invention relates to a method for preparing tempered anti-bacterial self-cleaning glass. Said method utilizes one-step heat treatment process to make the titanium dioxide base film coated or plated on the glass surface be sintered and converted into anatase crystal type to implement glass tempering so as to obtain the transparent tempered bacteria-killing self-cleaning glass product with good photocatalytic activity photosuperhydrophilicity and anti-bacterial function. Besides, said invention also provides its application range.

Description

technical field [0001] The present invention is a sol film of titanium dioxide precursor that is dipped or sprayed on flat glass, and after being dried and transformed into a gel film, it is sintered into a titanium dioxide film with a layer of anatase crystal form by one-step heat treatment to form an antibacterial and transparent A method of tempering self-cleaning glass. Background technique [0002] With the development of modern society and the improvement of people's quality of life, people pay more and more attention to environmental purification and housing projects. The development of science, technology and industry, on the one hand, has improved people's quality of life, on the other hand, the continuous development has caused the deterioration of the human living environment, especially the pollution and destruction of the space environment for people's production and work activities and the living room environment. It has an impact on people's health, and it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/23
Inventor 赵修建周学东袁启华
Owner WUHAN UNIV OF TECH
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