Radiation refrigeration coating containing high refractive index difference particle combination as well as preparation method and application of radiation refrigeration coating

A technology with high refractive index difference and radiative cooling, applied in reflection/signal coatings, coatings, sustainable manufacturing/processing, etc., to achieve enhanced solar reflection, improved radiative cooling, and high solar reflection

Pending Publication Date: 2022-03-18
吴景秀 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The energy consumption of refrigeration and air-conditioning in buildings accounts for 8-15% of the world's power generation. Traditional high-energy-consuming refrigeration technologies can no longer meet the current requirements for energy conservation and emission reduction.

Method used

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  • Radiation refrigeration coating containing high refractive index difference particle combination as well as preparation method and application of radiation refrigeration coating
  • Radiation refrigeration coating containing high refractive index difference particle combination as well as preparation method and application of radiation refrigeration coating
  • Radiation refrigeration coating containing high refractive index difference particle combination as well as preparation method and application of radiation refrigeration coating

Examples

Experimental program
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Effect test

Embodiment 1

[0025] This embodiment provides a radiation refrigeration coating containing a combination of high refractive index difference particles, including the following components by mass: BaSO 4 25 parts, Al 2 o 3 5 parts, SiO 2 25 parts, 25 parts of fluorocarbon water-based resin, 30 parts of water, 4 parts of dispersant aminopropylamine dioleate, 3 parts of coalescent propylene glycol phenyl ether, 1.5 parts of defoamer tributyl phosphate, thickener carboxymethyl Base cellulose 3 parts and leveling agent acrylate homopolymer 3 parts, of which BaSO 4 and Al 2 o 3 The particle size of SiO is 300~500nm; 2 The particle size is 3-5μm.

[0026] The preparation method of the radiant cooling coating containing the combination of high refractive index difference particles in this embodiment: the BaSO 4 and Al 2 o 3 Grinding to a particle size of 300-500nm, the SiO 2 Grind to a particle size of 3-5 μm, mix it into the mixed system of fluorocarbon water-based resin and water, th...

Embodiment 2

[0028] This embodiment provides a radiation refrigeration coating containing a combination of high refractive index difference particles, including the following components by mass: BaSO 4 22 parts, TiO 2 3 parts, SiO 2 15 parts, 15 parts of fluorocarbon water-based resin, 20 parts of water, 0.5 part of dispersant alkyl quaternary ammonium salt, 0.5 part of film-forming aid ethylene glycol butyl ether, 0.5 part of defoamer polyether defoamer, thickener 1 part of hydroxyethyl cellulose and 1 part of leveling agent cellulose acetate, in which BaSO 4 and TiO 2 The particle size of SiO is 300~500nm; 2 The particle size is 3-5μm.

[0029] The preparation method of the radiant cooling coating containing the combination of high refractive index difference particles in this embodiment: the BaSO 4 and TiO 2Grinding to a particle size of 300-500nm, the SiO 2 Grind to a particle size of 3-5 μm, mix it into the mixed system of fluorocarbon water-based resin and water, then add d...

Embodiment 3

[0031] This embodiment provides a radiation refrigeration coating containing a combination of high refractive index difference particles, including the following components by mass: BaSO 4 22 parts, ZnO 7 parts, Si 3 N 4 20 parts, 20 parts of water-based modified silicone resin, 25 parts of water, 2 parts of dispersant polycarboxylate sodium salt, 2 parts of film-forming aid benzyl alcohol, 1.0 parts of defoamer silicone defoamer, thickener A 2 parts of base cellulose and 2 parts of leveling agent silicone, of which BaSO 4 The particle size of ZnO and ZnO are both 300~500nm; Si 3 N 4 The particle size is 3-5μm.

[0032] The preparation method of the radiant cooling coating containing the combination of high refractive index difference particles in this embodiment: the BaSO 4 and ZnO to a particle size of 300-500nm, Si 3 N 4 Grind to a particle size of 3-5 μm, mix it into the mixed system of water-based modified silicone resin and water, then add dispersant, film-formi...

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Abstract

The invention relates to a radiation refrigeration coating containing a high refractive index difference particle combination and a preparation method and application thereof, and belongs to the technical field of radiation refrigeration materials. In order to improve the refrigeration performance of a radiation refrigeration material, the invention provides a radiation refrigeration coating containing a high refractive index difference particle combination, which comprises the following components: reflective functional particles, emission functional particles, a binder, a diluent, a dispersant, a coalescing agent, a defoaming agent, a thickening agent and a leveling agent, wherein the reflective functional particles are composed of high-refractive-index functional particles and low-refractive-index functional particles according to a certain mass ratio. Reflection type functional particles with different optical characteristics are emphatically matched, a plurality of interfaces with dielectric contrast are introduced to enhance solar reflection, the larger the contrast is, the more beneficial is that particles with higher refractive index scatter solar energy, the reflectivity of the prepared radiation refrigeration coating to the solar wave band can reach 98.1%, and the radiation refrigeration coating has good radiation refrigeration performance. And the radiation refrigeration effect can be obviously improved.

Description

technical field [0001] The invention belongs to the technical field of radiation refrigeration materials, and in particular relates to a radiation refrigeration coating containing a combination of particles with high refractive index difference and its preparation method and application. Background technique [0002] The energy consumption of refrigeration and air conditioning in buildings accounts for 8-15% of the world's power generation. Traditional high-energy-consuming refrigeration technologies can no longer meet the current requirements for energy conservation and emission reduction. The new radiation refrigeration technology completely abandons the way that traditional refrigeration technology needs to consume extra energy to drive refrigeration. By reflecting or scattering energy in the solar wave band (0.3-2.5μm), it uses the "atmospheric window" (8-13μm) and the universe with a temperature of 3K. The space exchanges heat through radiation, and realizes the cooling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D5/33C09D7/61C09D183/04C09D133/00
CPCC09D127/12C09D5/004C09D7/61C09D183/04C09D133/00C08K2003/3045C08K2003/2227C08K2003/2296C08K3/30C08K3/22C08K3/36C08K3/34C08K3/26Y02P20/10
Inventor 吴景秀程子明
Owner 吴景秀
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