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Self-cleaning outdoor water-based nano tin antimony oxide-silicon dioxide/silicon-acrylic composite transparent heat-insulating coating and preparation method thereof

A technology of nano-tin antimony oxide and silicon dioxide, which is applied in the direction of radiation-absorbing coatings and coatings, and can solve the problems of unfavorable long-term exposure to the outdoors, high solid content of slurry, and poor water resistance.

Pending Publication Date: 2021-11-26
CARPOLY CHEM GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above technical scheme, the former needs to prepare two kinds of slurry, the process is more complicated, and the solid content of the slurry is higher, which is unfavorable to the performance of the paint film
The latter coating has poor water resistance after film formation (cracking and discoloration after 3 days), and its hardness is only 2H, which is not conducive to long-term exposure outdoors

Method used

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  • Self-cleaning outdoor water-based nano tin antimony oxide-silicon dioxide/silicon-acrylic composite transparent heat-insulating coating and preparation method thereof
  • Self-cleaning outdoor water-based nano tin antimony oxide-silicon dioxide/silicon-acrylic composite transparent heat-insulating coating and preparation method thereof
  • Self-cleaning outdoor water-based nano tin antimony oxide-silicon dioxide/silicon-acrylic composite transparent heat-insulating coating and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0048] see figure 1 , the present invention provides an aqueous ATO-SiO 2 / Silicone-acrylic composite transparent heat-insulating paint and preparation method thereof, comprises the steps:

[0049] S101: ATO, dispersant and deionized water are mixed and stirred to prepare an ATO dispersion liquid.

[0050] Further, in step S101, the particle size of ATO is ≤10nm.

[0051] Further, in step S101, the dispersant is a mixture of tertiary amine type dispersant and silane dispersant;

[0052] Further, the tertiary amine type dispersant is selected from one or more of triethanolamine, N,N-dimethylethanolamine, and triethylamine;

[0053] The silane dispersant is selected from one or more of γ-(methacryloyloxy)propyltrimethoxysilane, vinyltrimethoxysilane and vinyltriethoxysilane.

[0054] Further, in step S101, the mass ratio of ATO, dispersant and water is (5-10): (0.2-0.7): (20-30).

[0055] Further, in step S101, ATO is prepared through a hydrothermal method.

[0056] In the...

Embodiment 1

[0097] This embodiment provides a self-cleaning outdoor water-based ATO-SiO 2 / Silicone-acrylic composite transparent heat-insulating coating and preparation method thereof, the steps are as follows:

[0098] (1) Preparation of ATO dispersion

[0099] In terms of parts by mass, 10.0 parts of ATO synthesized by hydrothermal method, 0.1 part of triethanolamine, 0.1 part of vinyltrimethoxysilane and 20 parts of deionized water were ultrasonically dispersed at room temperature for 0.5 hours, and mixed and stirred for 2 to 3 hours. Prepare a homogeneous ATO dispersion.

[0100] (2)ATO-SiO2 2 Preparation of composite sol

[0101] In terms of parts by mass, take 1.0 parts of tetraethyl orthosilicate and dissolve in 20.0 parts of ATO dispersion liquid, then add 0.2 parts of nitric acid aqueous solution with a mass concentration of 10%, mix evenly, and finally add 0.1 parts of 2,4-dihydroxy dihydroxy Benzophenone, stirred for 12 hours, left to age for 24 hours; the whole experiment...

Embodiment 2

[0109] This embodiment provides a self-cleaning outdoor water-based ATO-SiO 2 / Silicone-acrylic composite transparent heat-insulating coating and preparation method thereof, the steps are as follows:

[0110] (1) Preparation of ATO dispersion

[0111] In terms of parts by mass, 10.0 parts of ATO synthesized by hydrothermal method, 0.1 part of triethanolamine, 0.1 part of vinyltrimethoxysilane and 20 parts of deionized water were ultrasonically dispersed at room temperature for 0.5 hours, and mixed and stirred for 2 to 3 hours. Prepare a homogeneous ATO dispersion.

[0112] (2)ATO-SiO2 2 Preparation of composite sol

[0113] In terms of parts by mass, take 1.0 parts of tetraethyl orthosilicate and dissolve in 20.0 parts of ATO dispersion liquid, then add 0.2 parts of nitric acid aqueous solution with a mass concentration of 10%, mix evenly, and finally add 0.1 parts of 2,4-dihydroxy dihydroxy Benzophenone, stirred for 12 hours, left to age for 24 hours; the whole experiment...

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Abstract

The invention belongs to the technical field of water-based paint, and relates to a self-cleaning outdoor water-based ATO-SiO2 / silicone-acrylic composite transparent heat-insulating coating and a preparation method thereof. The preparation process of the water-based ATO-SiO2 / silicone-acrylic composite transparent heat-insulating coating comprises the following steps: mixing ATO, a dispersing agent and water to prepare a uniform ATO dispersion liquid; then dissolving tetraethoxysilane in the ATO dispersion liquid, and adding a benzophenone ultraviolet absorbent to prepare ATO-SiO2 composite sol; preparing the water-based silicone acrylic emulsion by using a silane coupling agent as an organic silicon monomer and a semi-continuous seed initiation method; and finally, uniformly mixing the water-based silicone acrylic emulsion, the nano tin antimony oxide-silicon dioxide composite sol, a film-forming agent and other auxiliaries to prepare the ATO-SiO2 / silicone acrylic composite transparent heat-insulating coating. The preparation method can be used to prepare the ATO-SiO2 / silicone-acrylic composite transparent heat-insulating coating which meets the national environmental protection standard and has high adhesive force, high paint film hardness, high visible light transmittance and excellent water resistance, weather resistance and heat-insulating property.

Description

technical field [0001] The invention belongs to the technical field of water-based coatings. The invention relates to a self-cleaning outdoor water-based nano-tin antimony oxide-silicon dioxide / silicon acrylic composite transparent heat-insulating paint and a preparation method thereof. Background technique [0002] The energy consumption of modern buildings has always been high. According to the results of the "China Building Energy Consumption Research Report" released in 2017, the proportion of building energy consumption accounts for 30% to 40% of the total human energy consumption. It is noteworthy that in China's total energy consumption, building energy consumption accounts for about 20%, most of which come from heating and air conditioning energy consumption. The energy lost through doors and windows accounts for half of the heating and air conditioning energy consumption of the entire building. Therefore, if you want to solve the problem of high energy consumption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D7/61C09D5/32C08F220/14C08F220/18C08F220/20C08F220/06C08F230/08
CPCC09D143/04C09D7/61C09D5/32C08F220/14C08K2201/011C08K3/36C08K3/22C08K5/132C08F220/1804C08F220/20C08F220/06C08F230/085
Inventor 张心亚柯澳爵谭振华李晓敏张浩
Owner CARPOLY CHEM GRP
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