Preparation method of a heat-insulating, anti-fog, self-cleaning superhydrophilic transparent coating

A transparent coating and self-cleaning technology, applied in the field of preparation of super-hydrophilic transparent coatings, can solve the problems of poor thermal insulation effect, poor anti-fog durability, and single function of thermal insulation coating, and achieve excellent thermal insulation function , the effect of improving water resistance and simple preparation process

Active Publication Date: 2022-06-14
江西善纳新材料科技有限公司
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  • Application Information

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Problems solved by technology

[0008] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for preparing a super-hydrophilic transparent coating with functions of heat insulation, self-cleaning and anti-fog, aiming to solve the problem of single-function super-hydrophilic coatings currently on the market. To solve the problems of anti-fog, self-cleaning and heat-insulating coatings, the existing super-hydrophilic coatings have poor anti-fog durability, poor water resistance, poor weather resistance and poor wiping resistance. ; Solve the poor heat insulation effect of existing heat insulation coatings, and ensure that high infrared rejection rate can be maintained while maintaining high visible light transmittance

Method used

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  • Preparation method of a heat-insulating, anti-fog, self-cleaning superhydrophilic transparent coating
  • Preparation method of a heat-insulating, anti-fog, self-cleaning superhydrophilic transparent coating
  • Preparation method of a heat-insulating, anti-fog, self-cleaning superhydrophilic transparent coating

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preparation example Construction

[0037] A preparation method of a heat-insulating, anti-fog self-cleaning super-hydrophilic transparent coating, the specific steps are:

[0038] Step 1: Prepare nano-insulation powder slurry dispersion; weigh nano-insulation powder, solvent and dispersant, place them in a ball mill, and weigh zirconia balls according to the ratio of 4:1 to 8:1 The ball mill speed is 400r / min, and the ball milling time is 4-8h. After ball milling, a uniformly dispersed nano-insulation powder dispersion slurry is obtained. The mass of nano-insulation powder accounts for 20%-30% of the mass of the dispersion slurry, the mass of the solvent accounts for 61%-76% of the mass of the dispersion slurry, and the mass of the dispersant accounts for 4%-9% of the mass of the dispersion slurry; The heat insulating powder is one or more mixtures of lanthanum hexaboride, tin antimony oxide and cesium tungsten bronze powder; the solvent is one or more of pure water, ethanol, isopropanol, ethyl acetate or A m...

Embodiment 1

[0044] Weigh 3g of nano-cesium tungsten bronze, 6.1g of ethanol, and 0.9g of acid group-containing polyester dispersant and place them in a ball mill. The ball milling time was 4h. After ball-milling, nano cesium tungsten bronze dispersion slurry (the solid content of cesium tungsten bronze is 30%) is obtained. Disperse 0.3g of polyacrylic acid aqueous solution and 0.7g of polypropylene glycol-400 in 2.4g of ethanol, stir magnetically for 10min uniformly, then add 0.08g of γ-methacryloyloxypropyltrimethoxysilane to it, and then magnetically stir it at room temperature. After stirring for 30min, a hydrophilic polymer solution with a certain degree of crosslinking was obtained. Then take 1g of nano-cesium tungsten bronze dispersion slurry into a hydrophilic polymer with a certain degree of cross-linking, add 0.05g of leveling agent, stir magnetically for 30min, and then spray the solution on the surface of the glass substrate. The glass was baked in an oven at 80°C for 30 minu...

Embodiment 2

[0046] Weigh 2g of nano-cesium tungsten bronze, 7.6g of pure water, and 0.4g of polyfatty acid oligomer dispersant and place them in a ball mill. The ball milling time was 4h. After ball-milling, nano cesium tungsten bronze dispersion slurry (the solid content of cesium tungsten bronze is 20%) is obtained. Disperse 0.4g maleic anhydride and 0.6g polyvinyl alcohol in 2.4g pure water, stir magnetically for 10min uniformly, add 0.1g γ-aminopropyltriethoxysilane to it, and stir magnetically for 30min at room temperature, both A hydrophilic polymer solution with a certain degree of crosslinking is obtained. Then take 1g of nano-cesium tungsten bronze dispersion slurry into a hydrophilic polymer with a certain degree of cross-linking, add 0.05g of leveling agent, stir magnetically for 30min, and then spray the solution on the surface of the glass substrate. The glass was baked in an oven at 80°C for 30 minutes, and the coating was obtained after drying.

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Abstract

The invention discloses a method for preparing a heat-insulating, anti-fogging, self-cleaning super-hydrophilic transparent coating. Step 1, preparing nano-heat-insulating powder slurry dispersion; Step 2, preparing a hydrophilic polymer with a certain degree of crosslinking solution; Step 3, preparing a super-hydrophilic transparent coating with heat insulation, anti-fog, and self-cleaning functions; dispersing the nano-insulation powder slurry obtained in Step 1 and step 2 to obtain a hydrophilic polymerization with a certain degree of crosslinking Stir the material and additives evenly, then spray the obtained solution on the surface of the glass substrate, put the coated glass in an oven to dry, and after drying, you can get a super-friendly glass with heat insulation, anti-fog and self-cleaning functions. Water clear coat. The invention solves the problems of poor anti-fog durability, poor water resistance, poor weather resistance and impermanence to wiping existing in the existing super-hydrophilic coating.

Description

technical field [0001] The invention relates to the field of chemical coatings, and in particular, to a method for preparing a super-hydrophilic transparent coating with functions of heat insulation, self-cleaning and anti-fogging, and requires the priority of application number 2021114097750 filed on November 20, 2021 . Background technique [0002] As we all know, paint has three main functions: decoration, protection and marking of objects. Today, with the development of human technology, the types and functions of coatings have become more and more, and the application places have become more and more extensive. However, in some special operating environments, a single-function coating cannot meet people's needs. In addition, with the rapid development of science and technology, people's performance requirements for coatings (such as anti-fogging, heat insulation, sound insulation, anti-bacteria, anti-privacy, stain resistance, etc.) are getting higher and higher. wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D201/10C09D201/02C09D7/61
CPCC09D201/10C09D201/025C09D7/61C08K2201/011C08K3/08C08K3/22C08K3/38
Inventor 陈伟凡陈龙王立中刘正叶剑勇刘越蒋绪川
Owner 江西善纳新材料科技有限公司
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