Nano-paste, self-cleaning coating liquid and thermal insulating coating liquid as well as transparent substrates and preparation methods thereof

A nano-slurry, coating liquid technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of unsatisfactory thickness, high cost, complex film production process, etc., to improve the process, wide application range, The effect of simplifying the coating process

Active Publication Date: 2014-09-24
张扬 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of complex production process, high cost and unsatisfactory thickness of the film used to improve the light transmittance of glass in the prior art, and to provide a nano-slurry a

Method used

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  • Nano-paste, self-cleaning coating liquid and thermal insulating coating liquid as well as transparent substrates and preparation methods thereof
  • Nano-paste, self-cleaning coating liquid and thermal insulating coating liquid as well as transparent substrates and preparation methods thereof
  • Nano-paste, self-cleaning coating liquid and thermal insulating coating liquid as well as transparent substrates and preparation methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1 Nano slurry with self-cleaning function

[0040] The formula of self-cleaning nano-paste is shown in the following table:

[0041] Photocatalyst (Evonik Degussa P25) 10 servings

[0042] Wetting agent (BYK Disperbyk-181) 4 parts Active dispersant (BYK-5410) 6 servings Defoamer (BYK-028) 0.2 parts Anhydrous ethanol (China National Pharmaceutical Group Chemical Reagent Company) 80 servings

[0043] Preparation method: first dissolve the wetting agent, defoamer and active dispersant in ethanol, add the photocatalyst P25 powder under stirring conditions, and after stirring, sand mill in a sand mill for 3 hours to obtain an average particle size of 95nm (Dynamic Light Scattering Test Results) The particle size distribution of the slurry around figure 1 Shown.

Example Embodiment

[0044] Example 2 Nano-paste with heat insulation function

[0045] The formula of self-cleaning nano-paste is shown in the following table:

[0046] Nano Indium Tin Oxide (Shanghai Zheng Nano ITO-P100) 30 servings Wetting agent (BYK Disperbyk-181) 8 servings Active dispersant (BYK-6190) 10 servings Defoamer (BYK-028) 0.3 copies Anhydrous ethanol (China National Pharmaceutical Group Chemical Reagent Company) 52 servings

[0047] Preparation method: first dissolve the wetting agent, defoamer and active dispersant in ethanol, add indium tin oxide powder under stirring conditions, and after stirring, sand mill in a sand mill for 3 hours to obtain the average particle size The particle size distribution of the slurry around 83nm (dynamic light scattering test result) is as figure 2 Shown.

Example Embodiment

[0048] Example 3 Self-cleaning glass

[0049] The formula of self-cleaning film coating liquid is shown in the following table:

[0050] Silicone resin (Dow Corning 2-19122) 2 servings Nano-paste with self-cleaning function (Example 1) 5 servings Titanium Dioxide Sol 1 serving Defoamer (BYK-028) 0.1 part Thickener (Dow Chemical RM-8W) 0.3 copies Anhydrous ethanol (China National Pharmaceutical Group Chemical Reagent Company) 80 servings

[0051] Preparation method of self-cleaning coated glass:

[0052] Mix the above-mentioned self-cleaning coating liquid uniformly according to the formula, roll it on the surface of the glass substrate, wait for the surface to dry, and then bake at 150°C for 15 minutes to obtain a transparent self-cleaning film with a thickness of 20 nanometers on the glass surface. Clean the coating to obtain self-cleaning glass.

[0053] The preparation process of the titanium dioxide sol is as follows: dissolve n-tetrabutyl titanate and acetylacetone in et...

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Abstract

The invention discloses a nano-paste, a self-cleaning coating liquid and a thermal insulating coating liquid as well as transparent substrates and preparation methods thereof. The formula of the nano-paste comprises the following components in parts by weight: 5-25 parts of nano-powder, 1-25 parts of wetting agent, 1-25 parts of active dispersant and 10-200 parts of dispersion medium, wherein the nano-powder is a photocatalyst powder or a thermal insulating powder; the solid content of the nano-powder is 5-50wt%; the particle size distribution of particles in the nano-paste is 10-200 nanometers. The self-cleaning coating liquid and the thermal insulating coating liquid are obtained by firstly preparing stable nano-photocatalyst paste and nano-thermal insulating paste and then compounding the stable nano-photocatalyst paste and nano-thermal insulating paste with film forming matters such as inorganic sol and organic resin. The coating liquids can be applied to the surfaces of different transparent substrates by use of a plurality of different construction methods, so that transparent materials having double functions of self-cleaning and thermal insulation can be obtained; as a result, large-scale preparation of multifunctional transparent coated materials, such as multifunctional coated glass, is realized.

Description

Technical field [0001] The present invention relates to the fields of chemicals, materials and environmental protection, in particular to a nano slurry, a self-cleaning coating film liquid containing the same, a heat insulating coating liquid containing the same, and their preparation methods and applications. Background technique [0002] In recent years, transparent materials such as glass have been used more and more widely in construction, vehicles and ships, and their high permeability to solar radiation has greatly increased the cooling and heating energy consumption of the internal space. Therefore, people began to use various methods to purposefully change the light transmittance of glass. At present, the most common method is to plate a metal film on the glass surface to achieve the effect of blocking solar heat radiation. For example, heat-insulating glass such as coated glass and low-emissivity glass uses high-temperature pyrolysis deposition or magnetron vacuum sputt...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D183/04C09D175/04C03C17/23C03C17/22C03C17/30C03C17/32
Inventor 张扬顾广新魏勇
Owner 张扬
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