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Novel nanometer self-cleaning paint and nanometer self-cleaning glass containing coating formed by paint

A nanometer self-cleaning and coating technology, applied in the direction of coating, etc., can solve the problems of self-cleaning effect to be improved and low light transmittance, and achieve the effect of improving self-cleaning ability, high light transmittance, and wide applicability

Active Publication Date: 2015-06-03
北京中科华纳技术发展有限公司
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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 nanometer self-cleaning paint and nanometer self-cleaning glass containing coating formed by paint
  • Novel nanometer self-cleaning paint and nanometer self-cleaning glass containing coating formed by paint
  • Novel nanometer self-cleaning paint and nanometer self-cleaning glass containing coating formed by paint

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Experimental program
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Effect test

preparation example Construction

[0021] The invention discloses a method for preparing a novel low-refractive-index self-cleaning glass, which comprises the following steps:

[0022] 1) Spray the nano self-cleaning coating evenly on the glass surface;

[0023] 2) drying the self-cleaning glass obtained in step 1) at normal temperature or under heating conditions to obtain a self-cleaning glass with a nanometer self-cleaning film;

[0024] 3) Soak the self-cleaning glass obtained in step 2) in solvent A to remove the nano-porogen in the film layer, dry, and form a nano-concave-convex structure in the film layer; or,

[0025] Spray solvent A on the self-cleaning glass surface obtained in step 2), let it stand, remove the solvent A that has dissolved the nano-porogen, dry, and form a nano-concave-convex structure at the film layer;

[0026] Wherein, the nanometer self-cleaning coating comprises the following components: (a) silica nanoparticles; (b) polysiloxane; (c) anatase titanium dioxide; (d) nanoporogen an...

Embodiment 1

[0076] 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

[0081] 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.

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Abstract

The invention provides a novel nanometer self-cleaning paint and nanometer self-cleaning glass containing coating formed by the paint. The paint comprises the following components: (a) silicon dioxide nanoparticles, (b) polysiloxane, (c) anatase type titanium dioxide, (d) a nanometer pore-foaming agent and (e) a solvent B. The self-cleaning glass has improved self-cleaning capacity and high light transmittance and also has enhanced super-hydrophilic property and antifogging property and wide applicability.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and relates to a novel nano self-cleaning coating and nano self-cleaning glass containing the coating formed by the coating. 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, titanium dioxi...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D7/12C03C17/00
Inventor 张玲娟江雷
Owner 北京中科华纳技术发展有限公司
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