Preparation method of anti-reflection self-cleaning coated glass

A coated glass and self-cleaning technology, which is applied in the field of preparation of anti-reflection and self-cleaning coated glass, can solve the problems of poor UV aging resistance, unsatisfactory self-cleaning effect, and inability to achieve super-hydrophilicity, etc., and achieve UV aging resistance Excellent, improve the visible light transmittance, reduce the temperature effect

Inactive Publication Date: 2013-05-08
上海圣元新能源科技有限公司
View PDF4 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, hydrothermal pretreatment of the glass substrate is required, and the required equipment and processes are complex, making it difficult to realize industrialization
At present, the self-cleaning coated glass prepared by the sol-gel method often needs to be baked at a relatively high temperature (gene

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of anti-reflection self-cleaning coated glass
  • Preparation method of anti-reflection self-cleaning coated glass
  • Preparation method of anti-reflection self-cleaning coated glass

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] The present invention relates to a preparation method of antireflection self-cleaning coated glass, which comprises the following steps:

[0024] Step 1. Preparation of SiO 2 -TiO 2 Composite sol: incorporating nano-SiO 2 Sol and Nano TiO 2 The sol is mixed according to the silicon-titanium molar ratio of 1:5 to 30, stirred evenly, then dropwise added an acid catalyst to adjust the pH value of the mixed sol to 2 to 4, and continued stirring to obtain the SiO 2 -TiO 2 composite sol;

[0025] Step 2. Coating by pulling method: first put the clean glass substrate on the pulling machine, and then put the glass substrate on the SiO 2 -TiO 2 After fully immersing in the composite sol for 5-20 minutes, pull it upwards at a pulling rate of 1-20 cm / min, and then let the glass substrate with the wet film attached to it air-dry at room temperature for 10-20 minutes, and the surface of the glass substrate forms a surface. a nano-film layer with roughness;

[0026] Step 3, p...

Example Embodiment

[0027] Example 1

[0028] Step 1. Preparation of TiO 2 Sol:

[0029] Anatase TiO 2 The powder is completely dissolved in deionized water, anatase TiO 2 The molar ratio of powder to deionized water is 1:5 to obtain the TiO 2 sol;

[0030] Step 2. Preparation of SiO 2 Sol:

[0031] Weigh ethyl orthosilicate, absolute ethanol, deionized water and acid catalyst (30% nitric acid aqueous solution) in a molar ratio of 1:15:1:0.001, and dilute ethyl orthosilicate with absolute ethanol. The mixed solution of acid catalyst and deionized water was added dropwise, and the above mixed solution was stirred and reacted at 20° C. for 4 hours, then allowed to stand for aging for 1 day, and then the reacted mixed solution was diluted 1.2 times with additional absolute ethanol to obtain The SiO 2 Sol, spare;

[0032] Step 3. Preparation of SiO 2 -TiO 2 Compound sol:

[0033] The nano-SiO 2 Sol and Nano TiO 2 The sol is mixed according to the molar ratio of silicon and titanium to 1...

Example Embodiment

[0038] Example 2

[0039] Step 1. Preparation of TiO 2 Sol:

[0040] Anatase TiO 2 The powder is completely dissolved in deionized water, anatase TiO 2 The molar ratio of powder to deionized water is 1:30 to obtain the TiO 2 sol;

[0041] Step 2. Preparation of SiO 2 Sol:

[0042] Weigh ethyl orthosilicate, anhydrous ethanol, deionized water and acid catalyst (20% aqueous sulfuric acid) in a molar ratio of 1:30:5:0.01, dilute ethyl orthosilicate with absolute ethanol, dropwise The mixed solution of acid catalyst and deionized water was added, the above mixed solution was ultrasonically reacted at 30°C for 20 minutes, then left to stand for aging for 2 days, and the reacted mixed solution was diluted 0.8 times with additional absolute ethanol to obtain the obtained solution. SiO 2 Sol, spare;

[0043] Step 3. Preparation of SiO 2 -TiO 2 Compound sol:

[0044] The nano-SiO 2 Sol and Nano TiO 2 The sol is mixed at a molar ratio of silicon to titanium of 1:30, stirre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of anti-reflection self-cleaning coated glass, which comprises the steps of preparing a SiO2-TiO2 composite sol firstly, then carrying out film coating by using a pulling method, and forming a coarse nano thin film layer on the surface of a glass substrate through the SiO2-TiO2 composite sol; and finally, carrying out low-temperature post-treatment on the obtained product so as to obtain coated glass. By using the preparation method disclosed by the invention, the visible light transmittance of the prepared coated glass can be improved, the light transmittance is increased by 2-3%, and the prepared coated glass can achieve a photocatalytic self-cleaning effect. The preparation method disclosed by the invention is simple, a glass substrate is not required to be subjected to complex pretreatment, and coated glass is not required to be subjected to high-temperature baking. The coated glass prepared by using the method disclosed by the invention has excellent ultraviolet aging resistance; and because a coated layer is a nano film, and the surface of the nano film has a proper roughness, the nano film can achieve a physical hydrophilic effect, so that the coated layer on the surface of the glass substrate also can have a super-hydrophilic self-cleaning performance under the condition of no light.

Description

technical field [0001] The invention relates to a preparation method of coated glass, in particular to a preparation method of anti-reflection self-cleaning coated glass. Background technique [0002] At present, there are few reports on the preparation of coated glass with both anti-reflection and photocatalytic self-cleaning effects by coating the glass surface. Among them, the patent number is CN102649623A, and the invention patent titled "Anti-reflective super-hydrophilic self-cleaning anti-fog glass and its preparation method" adopts two methods of heating water bath under normal pressure or sealing heating water heat, through alkaline aqueous solution Efficient etching is carried out on glass sheets of various components to obtain anti-reflection super hydrophilic self-cleaning anti-fog glass. In this patent, hydrothermal pretreatment is required for the glass substrate, and the required equipment and processes are complex, making it difficult to realize industrializa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C03C17/23
Inventor 杜云贵方建辉刘小文李建光
Owner 上海圣元新能源科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap