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Radiation cooling coating with self-cleaning function and preparation method thereof

A self-cleaning and cooling technology, applied in coatings, biocide-containing paints, anti-fouling/underwater coatings, etc., can solve the problems of lack of self-cleaning function, reduce the cooling effect of radiation cooling coatings, etc., to achieve Good lighting performance, improved cooling effect, low cost effect

Active Publication Date: 2019-01-08
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional radiative cooling coating lacks the self-cleaning function, which makes dust and dirty substances easily adhere to the surface of the radiative cooling coating, which reduces the cooling effect of the radiative cooling coating.

Method used

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  • Radiation cooling coating with self-cleaning function and preparation method thereof
  • Radiation cooling coating with self-cleaning function and preparation method thereof
  • Radiation cooling coating with self-cleaning function and preparation method thereof

Examples

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Effect test

Embodiment 1

[0041] A radiation cooling coating with self-cleaning function, the radiation cooling coating includes a bottom layer binder and a radiator and hydrophobic nanoparticles covered on the bottom layer binder, the infrared emission peak of the radiator is It is located in the infrared radiation band range of 8-13 μm and covers at least one band interval in the range of 8-13 μm.

Embodiment 2

[0043] A radiation cooling coating with self-cleaning function, the radiation cooling coating includes a bottom layer binder and radiators and hydrophobic nanoparticles covered on the bottom layer binder, the radiation body has a particle size of It consists of inorganic nanoparticles I with a particle size of 0.4-0.9 μm, or composed of inorganic nanoparticles II with a particle size of 1-4 μm, or composed of inorganic nanoparticles I with a particle size of 0.4-0.9 μm and inorganic nanoparticles with a particle size of 1-4 μm. Particle II is composed of a certain volume ratio.

Embodiment 3

[0045] A radiation cooling coating with self-cleaning function, the radiation cooling coating includes a bottom layer binder and radiators and hydrophobic nanoparticles covered on the bottom layer binder, the radiation body has a particle size of Inorganic nanoparticles I with a particle size of 0.4-0.9 μm and inorganic nanoparticles II with a particle size of 1-4 μm are composed according to a volume ratio of 1:(3-5).

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PUM

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Abstract

The invention belongs to the technical field of radiation cooling, and particularly relates to a radiation cooling coating with a self-cleaning function and a preparation method thereof. The radiationcooling coating comprises a bottom layer binder, and a radiator and hydrophobic nano particles, which are covered on the bottom layer binder; and an infrared emission peak of the radiator is positioned within an infrared radiation waveband range of 8 to 13 mum and at least covers one wave band interval in the range of 8 to 13 mum. According to the invention, by utilizing high hydrophobicity of the nano hydrophobic particles, the radiation cooling coating has a self-cleaning effect and a phenomenon of reducing the cooling effect due to dust accumulation is avoided. The radiation cooling coating disclosed by the invention has high emissivity on the wave band of 8 to 13 mum, is large in transmittance on a visible light wave band, is excellent in lighting performance, can also reduce absorption on energy on the rest of wave bands and ensures the cooling effect. The radiation cooling coating further adopts two different particle sizes of radiators, so that the radiation range is widened, ground heat is radiated to the outer space to the greatest degree, and the cooling effect is improved.

Description

technical field [0001] The invention belongs to the technical field of radiation cooling, and in particular relates to a radiation cooling coating with self-cleaning function and a preparation method thereof. Background technique [0002] Global warming and energy crisis have become important issues restricting human development, and energy saving and emission reduction are important ways to solve the above problems. As a non-energy-consuming cooling method, radiative cooling has gradually attracted the attention of researchers. Radiation energy to outer space is an important mechanism for maintaining the temperature of the earth. The efficiency of radiative cooling depends on the spectral emissivity of the surface of the object. By adjusting the surface emission It can be an important passive cooling method and can be widely used in temperature regulation of buildings, electronic heat dissipation, and cooling of solar cells. Relying on the "atmospheric window" band (8-13μm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/16
CPCC09D5/1687C08K2201/011C08K2003/2296C08K2003/2272C08K2003/2248C08K2003/2241C08K3/36
Inventor 王富强程子明
Owner HARBIN INST OF TECH AT WEIHAI
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