A kind of preparation method of self-cleaning tempered glass

A tempered glass and self-cleaning technology, applied in the field of tempered glass, can solve problems such as failure, fracture of titanium dioxide film, self-cleaning effect, and decrease in self-cleaning effect.

Inactive Publication Date: 2016-06-22
FUJIAN GANGDA GLASS PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since anatase-type titanium dioxide is used as the main component of the self-cleaning film, and the glass surface is first sprayed and coated, and then the glass is tempered at a high temperature of 700 ° C, the titanium dioxide crystal form in the self-cleaning film formed by the spraying process The self-cleaning effect is severely reduced due to the transformation, and the surface tempering can cause the titanium dioxide film to break and make the self-cleaning effect invalid

Method used

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preparation example Construction

[0046] The embodiment of the present invention discloses a method for preparing self-cleaning tempered glass, comprising the following steps:

[0047] a) Spray the nano self-cleaning coating on the glass surface and dry it. The nano self-cleaning coating includes the following components:

[0048] Nano cobalt oxide, nano zirconia, nano molybdenum trioxide, water glass, hollow glass beads, palygorskite powder, sepiolite powder and solvent;

[0049] b) soaking the glass obtained in step a in an acid solution for acid treatment;

[0050] c) Bake the glass obtained in step b at a temperature of 200-300°C for 20-40 minutes, then temper it at 600-680°C for 6-10 minutes, and obtain a self-cleaning tempered glass after cooling.

[0051] The present invention avoids the use of anatase titanium dioxide as the main component of the self-cleaning membrane, and uses nano-cobalt oxide, nano-zirconia, nano-molybdenum trioxide, water glass, hollow glass beads, palygorskite powder and sepioli...

Embodiment 1

[0102] a) Mix 7g of nano-cobalt oxide, 9g of nano-zirconia, 15g of nano-molybdenum trioxide, 2g of water glass, 15g of hollow glass beads, 9g of palygorskite powder, 4g of sepiolite powder, and 40g of ethanol to obtain a nanometer self-cleaning coating;

[0103] The glass is ground, cleaned, dried, and then preheated at 270°C for 8 hours, and the glass preferably includes the following composition: 50wt% SiO 2 ; 8wt% Al 2 o 3 ; 16 wt% B 2 o 3 ; 16wt% La 2 o 3 ; 9wt% ZnO; 1wt% Li 2 O;

[0104] Spray the nano self-cleaning coating prepared above on the glass surface with a thickness of 7mm, dry it, the spraying air source pressure is 12~16kg, the spraying speed is 3~4m / s, the nozzle diameter is 2mm, and the spraying distance is 4~6cm. The number of times of coating is 2~3 times, and the thickness of the self-cleaning coating obtained by spraying is 20~200nm. The spraying process is preferably in a closed environment to ensure that there is no wind and clean air in the en...

Embodiment 2

[0108] a) Mix 5g of nano-cobalt oxide, 10g of nano-zirconia, 18g of nano-molybdenum trioxide, 2g of water glass, 12g of hollow glass beads, 9g of palygorskite powder, 6g of sepiolite powder, and 40g of ethanol to obtain a nanometer self-cleaning coating;

[0109] The glass is ground, cleaned, dried, and then preheated at 270°C for 8 hours, and the glass preferably includes the following composition: 50wt% SiO 2 ; 8wt% Al 2 o 3 ; 16 wt% B 2 o 3 ; 16wt% La2 o 3 ; 9wt% ZnO; 1wt% Li 2 O;

[0110] Spray the nano self-cleaning coating prepared above on the glass surface with a thickness of 7mm, dry it, the spraying air source pressure is 12~16kg, the spraying speed is 3~4m / s, the nozzle diameter is 2mm, and the spraying distance is 4~6cm. The number of times of coating is 2~3 times, and the thickness of the self-cleaning coating obtained by spraying is 20~200nm. The spraying process is preferably in a closed environment to ensure that there is no wind and clean air in the env...

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Abstract

The invention provides a preparation method of self-cleaning toughened glass, comprising: spraying nano-self-cleaning paint on the glass surface, which includes the following components: nano-cobalt oxide, nano-zirconia, nano-molybdenum trioxide, water glass, hollow glass micro Beads, palygorskite powder, sepiolite powder and solvent; then soak the glass in acid solution for acid treatment; bake at 200~300°C for 20~40 minutes, and then temper at 600°C~680°C for 6~ After 10 minutes, self-cleaning tempered glass is obtained after cooling. The present invention uses nano-cobalt oxide, nano-zirconia, nano-molybdenum trioxide, water glass, hollow glass beads, palygorskite powder and sepiolite powder as the main components of the nano-self-cleaning coating. Under the synergistic effect of each component, not only The self-cleaning effect is played, and the crystal form does not change after high-temperature treatment, thereby ensuring that the prepared self-cleaning tempered glass has a good self-cleaning effect.

Description

technical field [0001] The invention relates to the technical field of tempered glass, in particular to a preparation method of self-cleaning tempered glass. Background technique [0002] With the progress of society and the improvement of people's living standards, tempered glass has a wide range of applications, involving various fields of daily life such as construction, furniture, office supplies, and transportation. However, toughened glass has the problem of poor stain resistance during use, especially in the northern regions where there is a lot of dust in the atmosphere, serious air pollution, drought and little rain. The cleaning technology of tempered glass is demanding and difficult, and it is easy to pollute the surrounding environment after cleaning with a large amount of organic solvents and acidic detergents, and the discharge of cleaning waste is also a problem. Therefore, it is of great significance to develop tempered glass with self-cleaning function. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/22C03C17/23
Inventor 谢东明
Owner FUJIAN GANGDA GLASS PROD
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