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High-emission transparent heat-insulating paint in atmospheric window regions and preparation method thereof

A technology of atmospheric windows and thermal insulation coatings, applied in the field of coatings, can solve the problems of low emissivity in the atmospheric window area and inability to effectively dissipate heat, and achieve effective heat dissipation

Inactive Publication Date: 2012-04-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide a transparent heat-insulating coating with high emission in the atmospheric window, which can overcome the problem that the transparent heat-insulating coating disclosed in the prior art has a low emissivity in the atmospheric window area and cannot effectively dissipate heat insufficient

Method used

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  • High-emission transparent heat-insulating paint in atmospheric window regions and preparation method thereof
  • High-emission transparent heat-insulating paint in atmospheric window regions and preparation method thereof
  • High-emission transparent heat-insulating paint in atmospheric window regions and preparation method thereof

Examples

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Effect test

Embodiment 1

[0036] Embodiment 1, a transparent heat-insulating coating with high emission in the atmospheric window area, by weight, the main material of the transparent heat-insulating coating is composed of the following components: 50 parts of polyacrylate emulsion, nanometer antimony-doped tin dioxide (particle diameter 5-60nm) 15 parts, nano-mullite powder (particle size 5-60nm) 15 parts, 2 parts of sodium hexametaphosphate as an anionic dispersant, 4 parts of DP270 dispersant as a non-ionic dispersant , 1 part of 090 defoamer, 3 parts of hydroxyethyl cellulose ether as a thickener, 1 part of polypropylene oxide as a leveling agent, 1 part of alcohol ester-12 as a film-forming aid, as an antifreeze 1 part of propylene glycol, 7 parts of distilled water.

[0037] Its preparation method is to carry out following steps successively:

[0038] 1), Premix:

[0039] Add 7 parts of distilled water, 2 parts of sodium hexametaphosphate, 4 parts of DP270 dispersant and 0.3 part of 090 defoame...

Embodiment 2

[0044] Embodiment 2, a transparent heat-insulating coating with high emission in the atmospheric window, by weight, the main material of the transparent heat-insulating coating is made up of the following components: 50 parts of styrene-acrylic emulsion, fluorine-doped tin dioxide (particle diameter is 5~ 60nm) 15 parts, nano mullite powder (particle size 5 ~ 60nm) 15 parts, sodium hexametaphosphate as an anionic dispersant 2.5 parts, DP270 dispersant as a nonionic dispersant 5 parts, 090 1 part of foaming agent, 3 parts of hydroxyethyl cellulose ether as a thickener, 1 part of polypropylene oxide as a leveling agent, 1 part of alcohol ester-12 as a film-forming aid, 1 part of propylene glycol as an antifreeze parts, 6 parts of distilled water.

[0045] Its preparation method is to carry out following steps successively:

[0046] 1), Premix:

[0047] Add 6 parts of distilled water, 2.5 parts of sodium hexametaphosphate, 5 parts of DP270 dispersant and 0.3 part of 090 defoame...

Embodiment 3

[0052] Embodiment 3, a transparent heat-insulating coating with high emission in the atmospheric window, by weight, the main material of the transparent heat-insulating coating is composed of the following components: 50 parts of styrene-acrylic emulsion, nano-indium tin oxide (particle diameter is 5-60nm ) 7 parts, 8 parts of nano-antimony-doped tin dioxide (with a particle size of 5-60nm), 15 parts of nano-mullite powder (with a particle size of 5-60nm), 2.5 parts of sodium hexametaphosphate as an anionic dispersant , 5 parts of DP270 dispersant as a non-ionic dispersant, 1 part of 090 defoamer, 3 parts of hydroxyethyl cellulose ether as a thickener, 0.5 parts of polypropylene oxide as a leveling agent, as a film-forming agent 1 part of alcohol ester-12 as auxiliary agent, 1 part of propylene glycol as antifreeze, and 6 parts of distilled water.

[0053] Its preparation method is to carry out following steps successively:

[0054] 1), Premix:

[0055] Add 6 parts of distil...

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Abstract

The invention discloses a high-emission transparent heat-insulating paint in atmospheric window regions. The main material of the transparent heat-insulating paint is prepared from the following components in parts by weight: 30-70 parts of polymer emulsion, 10-30 parts of nano doped oxide powder, 2-30 parts of high-emission nano powder in atmospheric window regions, 1-10 parts of anionic dispersant, 2-20 parts of nonionic dispersant, 0.5-2 parts of defoaming agent, 0-5 parts of thickening agent, 1-2 parts of film forming assistant, 1-2 parts of antifreezing agent, 1-2 parts of leveling agentand 5-20 parts of distilled water. The invention also discloses a preparation method of the transparent heat-insulating paint, which comprises the following steps: after evenly mixing the components,regulating the pH value to 8.5-9.5 with a multifunctional assistant AMP-95 to obtain the high-emission-rate transparent heat-insulating paint in atmospheric window regions. The paint has high emission rate in atmospheric window regions, and can implement effective heat dissipation.

Description

technical field [0001] The invention relates to a coating, in particular to a high-emission transparent heat-insulating coating which can be coated on the atmospheric window area of ​​the outer surface of building or vehicle window glass and a preparation method thereof. Background technique [0002] From the point of view of thermal radiation, outer space can be approximated as a black body with an absolute temperature of zero. If a black body with a temperature of T=300K is set outside the atmosphere (blocking the direct sunlight); then it will be gradually cooled down. According to the Stephen-Boltzmann law, the energy W per unit area radiated into outer space can be calculated: [0003] W=αT 4 =5.7×10 -8 ×300 4 ≈450W / m 2 [0004] This value is a very high cooling capacity. In outer space, good thermal insulation can be obtained by using radiant coatings. The National Aeronautics and Space Administration (NASA) developed a new type of high-radiation coating (Emiss...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D125/14C09D101/28C09D5/33C09D7/12C09D7/06C09D7/47
Inventor 杨辉郭兴忠蔡伟炜吕林一秀
Owner ZHEJIANG UNIV
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