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Novel preparation method of nanometer self-cleaning glass

A nano self-cleaning and self-cleaning technology, applied in the field of functional materials, can solve the problems of low light transmittance and self-cleaning effect to be improved, achieve low refractive index, enhance superhydrophilicity and anti-fog performance, and have wide applicability Effect

Active Publication Date: 2015-09-02
江纳股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it may have problems such as low light transmittance and self-cleaning effect to be improved.

Method used

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  • Novel preparation method of nanometer self-cleaning glass
  • Novel preparation method of nanometer self-cleaning glass
  • Novel preparation method of nanometer self-cleaning glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Use 400-mesh glass polishing powder to polish the glass surface with a rotating disk, then rinse the dirt and polishing powder on the glass surface with water, dry it naturally in a clean place, and spray the nano self-cleaning coating evenly on the glass surface with a spray gun (speed 1.2 m / s), stand at room temperature for 5 minutes, and a self-cleaning glass coated with a self-cleaning film can be obtained. The self-cleaning glass surface is sprayed with solvent A, left to stand, the solvent A in which the nano-porogen is dissolved is removed, and dried to form a nano-concave-convex structure on the film layer. Then the prepared self-cleaning glass was tempered at 700°C for 650 seconds. The treated self-cleaning glass not only maintained good superhydrophilic properties, but also the crystal form of titanium dioxide on the glass surface did not change. Strength and hardness are improved. After testing, the light transmittance of the glass is 95%, its contact angle ...

Embodiment 2

[0073] Two pieces of 5cm*5cm are taken from the self-cleaning glass (95% light transmittance) in Example 1, soaked in a methylene blue solution with a concentration of 1mmol / l for 1 hour, take it out, dry the back, and place it vertically in a dark place. After the methylene blue solution is naturally dried, put it under the ultraviolet lamp (45W) for half an hour, and then test the light transmittance of the glass to 95%, indicating that the methylene blue on the glass surface has been completely decomposed, and the self-cleaning glass has better light catalytic performance.

Embodiment 3

[0075] Continue to irradiate the self-cleaning glass with ultraviolet light for half an hour in Example 2 under a 500W ultraviolet lamp for 24 hours, observe its surface state, and there is no discoloration or pulverization.

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Abstract

The invention provides a novel preparation method of nanometer self-cleaning glass with low refractive index. The preparation method comprises the following steps: 1) uniformly spraying a nanometer self-cleaning paint onto the surface of glass; 2) drying the self-cleaning glass obtained from the step 1) under the normal temperature or heating condition so as to obtain self-cleaning glass with a nanometer self-cleaning film; and 3) spraying a solvent A onto the surface of the self-cleaning glass obtained from the step 2), standing, removing the nano-pore-forming agent-dissolved solvent A, and drying to form a nanometer concave-convex structure on the film. The self-cleaning glass prepared by the method has raised self-cleaning ability and high light transmittance, also has enhanced super-hydrophilic property and antifogging property, and has wider applicability.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and relates to a method for preparing glass, in particular to a technology for preparing self-cleaning glass with low refractive index. Background technique [0002] With the rapid development of my country's construction industry, glass curtain walls are favored by architects because of their advantages such as windproof, rainproof, heat preservation, heat insulation, noise prevention, air penetration resistance and decoration. But the way it's cleaned hasn't changed in any way. Manual cleaning is neither convenient nor safe. In addition, long-term use of cleaning agents not only wastes resources, but also pollutes the environment, which is not in line with the current national policy of environmental protection and conservation. Therefore, research on the preparation of self-cleaning glass has become a hot topic. [0003] Studies have shown that under the irradiation of light, tit...

Claims

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Application Information

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IPC IPC(8): C03C17/23
Inventor 江雷张玲娟朱茵
Owner 江纳股份公司
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