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Method for preparing self-cleaning toughened glass

A tempered glass, self-cleaning technology, applied in the field of glass preparation, can solve the problems of affecting and affecting the self-cleaning effect of glass

Active Publication Date: 2011-05-04
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing self-cleaning tempered glass, which solves the impact of tempering high temperature on the titanium dioxide film layer in the preparation of self-cleaning tempered glass and further affects the self-cleaning effect of the glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of the self-cleaning toughened glass includes the following processes:

[0028] (1) First clean the tempered glass surface to ensure that there is no dust, and then polish it with cerium oxide polishing powder. The mass ratio of cerium oxide to water is 1:6. You can use dust-free paper or non-woven fabric for polishing, and then water it Rinse off the polishing powder and let it dry naturally or with hot air;

[0029] (2) Spray the self-cleaning emulsion evenly on the glass surface treated by (1), the spraying process parameters can be set as: spraying air source pressure 10kg, spraying speed 0.5m / s, nozzle diameter 1.6mm, spraying distance 30cm , set 4 nozzles as a group, the distance between two adjacent nozzles is 30cm, the number of spray coatings is 2 times, and the self-cleaning coating obtained is 200nm. The whole spraying process is set in a closed environment to ensure that there is no wind in the environment , The air is clean, the temp...

Embodiment 2

[0034] The preparation method of the self-cleaning toughened glass includes the following processes:

[0035] (1) First clean the tempered glass surface to ensure that there is no dust, and then polish it with cerium oxide polishing powder. The mass ratio of cerium oxide to water is 1:15. You can use dust-free paper or non-woven fabric for polishing, and then water Rinse the polishing powder, then clean it with absolute ethanol, and let it dry naturally;

[0036] (2) Spray the self-cleaning emulsion evenly on the glass surface treated by (1), the spraying process parameters can be set as: spraying air source pressure 6kg, spraying speed 0.1m / s, nozzle diameter 1.4mm, spraying distance 25cm , set 2 nozzles as a group, the distance between every two adjacent nozzles is 40cm, the number of times of spray coating is 3 times, the self-cleaning coating obtained is 300nm, the whole spraying process is set in a closed environment to ensure that there is no The wind and air are clean,...

Embodiment 3

[0041] The preparation method of the self-cleaning toughened glass includes the following processes:

[0042] (1) First clean the tempered glass surface to ensure that there is no dust, and then polish it with cerium oxide polishing powder. The mass ratio of cerium oxide to water is 1:20. You can use dust-free paper or non-woven fabric for polishing, and then water Rinse the polishing powder clean, then wash it with hydrochloric acid, then wash off the hydrochloric acid with water, and dry it with hot air;

[0043] (2) Spray the self-cleaning emulsion evenly on the glass surface treated by (1), and the spraying process parameters can be set as:

[0044] The air source pressure is 4kg, the spraying speed is 0.05m / s, the nozzle diameter is 0.8mm, and the spraying distance is 40cm. The single nozzle sprays the glass surface back and forth horizontally. The spraying process is set in a closed environment to ensure that there is no wind and clean air in the environment, the temper...

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Abstract

The invention discloses a method for preparing self-cleaning toughened glass, which is to spray self-cleaning emulsion on the toughened glass surface and perform high-temperature sintering to form a self-cleaning film on the glass surface. The proper temperature of the high-temperature sintering process ranges from 80 to 200 DEG C, while the temperature of the whole process is controlled to be below 200 DEG C, which is far lower than the high temperature of 700 DEG C required by the toughening process. The self-cleaning toughened glass prepared by the invention can effectively solve the problem that high toughening temperature causes transform of the crystalform of titanium dioxide and makes the self cleaning effect of the glass poor and the problem that curved surface toughening causes breakage of the titanium dioxide film and results in ineffectiveness of self cleaning property. The self-cleaning film can be uniformly combined with the surface of self-cleaning toughened glass prepared by the invention, the performance is stable, a static contact angle can be smaller than 7 DEG, the oil decomposition efficiency of optical catalysis is over 80 percent, the light permeability of the glass can reach over 75 percent, and the self-cleaning effect can last.

Description

technical field [0001] The invention belongs to the field of glass preparation, and in particular relates to a preparation method of self-cleaning tempered glass. Background technique [0002] In recent years, tempered glass has been widely used in various fields of daily life such as construction, furniture, office supplies, and transportation. But the cleaning method of tempered glass is still not greatly improved, and the cleaning method using detergent and water not only wastes resources, but also easily causes environmental pollution. Self-cleaning tempered glass provides a new way to clean tempered glass. [0003] Self-cleaning tempered glass is coated with a layer of titanium dioxide film with good hydrophilicity and photocatalysis on the surface of tempered glass. Experiments have proved that the film formed by titanium dioxide can effectively decompose organic matter under light conditions and achieve the function of self-cleaning. The self-cleaning glass prepare...

Claims

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Application Information

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IPC IPC(8): C03C17/22
Inventor 李祥伟
Owner CHERY AUTOMOBILE CO LTD
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