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Transparent heat insulation coating material, preparation method and application thereof

A coating and transparent technology, applied in polyester coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of nano-particles easy to agglomerate, easy to aggregate and precipitate, easy to reverse coarse, etc., to achieve good infrared barrier performance, improve the barrier effect, reduce the effect of solar radiation

Inactive Publication Date: 2009-10-07
FUDAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the high specific surface area and surface free energy of nanoparticles, they are in a thermodynamically unstable state, and the nanoparticles are easily agglomerated into clusters and difficult to disperse uniformly.
The nano-slurry prepared by the prior art tends to have disadvantages such as large average particle size, easy inversion of coarseness, poor transparency in the visible light region, easy aggregation and precipitation during storage, and unsatisfactory heat insulation effect

Method used

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  • Transparent heat insulation coating material, preparation method and application thereof
  • Transparent heat insulation coating material, preparation method and application thereof
  • Transparent heat insulation coating material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Preparation of water-based thermal insulation nano slurry:

[0046] Antimony tin oxide 10

[0047] Lanthanum hexaboride 1

[0048] Wetting and dispersing agent (Disperbyk-190) 0.8

[0049] Hyperdispersant (Hyperdisper-5410) 2.0

[0050] water 87

[0051] Add the wetting dispersant and hyperdispersant to the water first, after stirring evenly, add the above powder under medium speed stirring, after the powder is evenly mixed in the water, disperse ultrasonically for 1 hour, and sand in the sand mill After 36 hours, a slurry with an average particle diameter of about 80 nm was obtained.

Embodiment 2

[0053] Preparation of alcohol-soluble thermal insulation nano-slurry:

[0054] Antimony tin oxide 30

[0055] Lanthanum hexaboride 2

[0056] Wetting and dispersing agent ByK 160 (acrylate) 1.5

[0057] Hyperdispersant (Hyperdisper-5410) polyester) 1.5

[0058] Ethanol 63

[0059] leveling agent 2

[0060] Defoamer 0.3

[0061] Add the wetting and dispersing agent ByK 160 and the hyperdispersant (Hyperdisper-5410) into ethanol first, after stirring evenly, add the above powder under medium-speed stirring, and after the powder is uniformly mixed in water, disperse ultrasonically for 3 hours , Sand mill in a sand mill for 50 hours, add leveling agent and defoamer to obtain a slurry with an average particle size of about 100nm.

Embodiment 3

[0063] Preparation of solvent-based thermal insulation nano-slurries:

[0064] Indium tin oxide (ITO) 59

[0065] Lanthanum hexaboride 1

[0066] Wetting and dispersing agent (Disperbyk-161) 6

[0067] Hyperdispersant (BSK 32800SH) 2.0

[0068] Xylene 32

[0069] Add the wetting dispersant and hyperdispersant to xylene first, and after stirring evenly, add the above-mentioned powder under medium-speed stirring. After the powder is uniformly mixed in water, ultrasonically disperse for 0.5 hours, and put it in a sand mill Sand mill for 28 hours to obtain a slurry with an average particle diameter of about 180nm.

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Abstract

The invention relates to a transparent heat insulation coating material, the preparation method and the application thereof. The material is made from the raw material of lanthanum hexaboride / tin indium oxide or lanthanum hexaboride / tin antimony oxide, by the steps of pretreating by ultrasonic dispersion, and grinding to prepare nanometer slurry with heat insulation function, wherein the nanometer slurry has particle sizes mainly between 10nm and 200nm, the average particle size between 50nm and 120nm, and superior dispersion stability; mixing the nanometer slurry with film forming substance, auxiliary agent and solvent, to obtain the transparent heat insulation coating material. The coating material can obstruct more than 80% of infrared light, has a visible light transmittance above 60%, achieves excellent transparency and sunshine energy shielding effect; can be directly coated on transparent glass, polycarbonate, synthetic glass and polyester; and achieves the aims of energy conservation and heat insulation.

Description

technical field [0001] The invention belongs to the technical fields of chemical industry and paint, and in particular relates to a transparent heat-insulating coating material and its preparation method and application. Background technique [0002] In order to reduce solar radiation and achieve the purpose of saving energy, people use various methods to change the light transmission performance of glass. Automobile glass film can block sunlight radiation, reduce the temperature of the surfaces and air in the car, improve the riding environment of the passengers, and reduce the fuel consumption of the car. Similarly, some building energy-saving glass is coated with metal film (aluminum, silver, etc.) ) also achieves the purpose of blocking sunlight radiation and reducing air-conditioning energy consumption. [0003] In recent years, it has been found that some metal oxides have good optical barrier properties, such as antimony tin oxide (ATO) has good barrier properties to...

Claims

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Application Information

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IPC IPC(8): C09D133/02C09D175/04C09D167/08C09D167/00C09D161/20C09D183/04C09D1/00C09D7/12C09D5/00C03C17/32
Inventor 顾广新武利民魏勇游波
Owner FUDAN UNIV
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