Preparation method of anti-reflection self-cleaning coated glass

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...

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 (generally above 400°C), and it cannot achieve superhydrophilicity under the condition of no light, and the self-cleaning effect is not ideal.

In addition, there are currently organic ingredients (such as: MgF 2 ) as an anti-reflection coating material for glass, but the obtained glass often has poor UV aging resistance

Images