Novel thermal-insulation waterproof coating used for solar energy devices

A waterproof coating and solar energy technology, which is applied in the field of solar energy, can solve the problems of black nickel coating thermal stability, poor corrosion resistance, etc., and achieve the effects of low emissivity, high thermal conductivity, and high transmittance

Inactive Publication Date: 2018-07-31
JIANGSU SHUANGNENG SOLAR ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor thermal stability and corrosion resistance of black nickel coating, it is usually only suitable for low temperature solar thermal utilization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The novel solar thermal insulation and waterproof coating of the present invention is made of the following components according to the weight ratio:

[0020] 44 parts of film-forming agent, 28 parts of acrylic resin, 1 part of polyvinylpyrrolidone, 1.0 parts of carbon black, 1.1 parts of chromium oxide green, 8 parts of methyl isobutyl ketone, 13 parts of film-forming aid, 4 parts of enamel black, light absorbing 44 parts of solvent, 1 part of chlorinated paraffin, 1 part of carbon black, 8 parts of precipitated barium sulfate, 23 parts of solvent, 4 parts of iron manganese black pigment, 6 parts of auxiliary agent, 0.2 part of silane coupling agent, 1 part of sulfonated graphene .

[0021] In the above formula, the wavelength of ultraviolet light irradiation is 200nm-400nm, the film-forming agent is modified casein-gelatin, and the light-absorbing agent is cobalt blue powder, cobalt manganese copper oxide blended into black; or use chromium oxide green powder, seleniu...

Embodiment 2

[0023] The novel solar thermal insulation and waterproof coating of the present invention is made of the following components according to the weight ratio:

[0024] 87 parts of film-forming agent, 32 parts of acrylic resin, 3 parts of polyvinylpyrrolidone, 2.4 parts of carbon black, 1.8 parts of chromium oxide green, 10 parts of methyl isobutyl ketone, 25 parts of film-forming aid, 9 parts of enamel black, light absorption 63 parts of solvent, 3 parts of chlorinated paraffin, 2 parts of carbon black, 10 parts of precipitated barium sulfate, 47 parts of solvent, 8 parts of iron manganese black pigment, 23 parts of additives, 0.4 parts of silane coupling agent, 2 parts of sulfonated graphene .

[0025] In the above formula, the wavelength of ultraviolet light irradiation is 200nm-400nm, the film-forming agent is modified casein-gelatin, and the light-absorbing agent is cobalt blue powder, cobalt manganese copper oxide blended into black; or use chromium oxide green powder, sele...

Embodiment 3

[0027] The novel solar thermal insulation and waterproof coating of the present invention is made of the following components according to the weight ratio:

[0028] 66 parts of film-forming agent, 30 parts of acrylic resin, 2 parts of polyvinylpyrrolidone, 1.7 parts of carbon black, 1.5 parts of chromium oxide green, 9 parts of methyl isobutyl ketone, 19 parts of film-forming aid, 6 parts of enamel black, light absorption 53 parts of additives, 2 parts of chlorinated paraffin, 1 part of carbon black, 9 parts of precipitated barium sulfate, 35 parts of solvent, 6 parts of iron manganese black pigment, 13 parts of additives, 0.3 parts of silane coupling agent, 2 parts of sulfonated graphene .

[0029] In the above formula, the wavelength of ultraviolet light irradiation is 200nm-400nm, the film-forming agent is modified casein-gelatin, and the light-absorbing agent is cobalt blue powder, cobalt manganese copper oxide blended into black; or use chromium oxide green powder, selen...

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Abstract

The invention relates to a novel thermal-insulation waterproof coating used for solar energy devices. The coating is prepared from the following components in parts by weight: 44-87 parts of a film forming agent, 28-32 parts of acrylic resin, 1-3 parts of polyvinylpyrrolidone, 1.0-2.4 parts of carbon black, 1.1-1.8 parts of chrome oxide green, 8-10 parts of methyl isobutyl ketone, 13-25 parts of afilm forming auxiliary agent, 4-9 parts of enamel black, 44-63 parts of a light absorbing agent, 1-3 parts of chlorinated paraffin, 1-2 parts of carbon black, 8-10 parts of precipitated barium sulfate, 23-47 parts of a solvent, 4-8 parts of a manganese ferrite black pigment, 6-23 parts of an auxiliary agent, 0.2-0.4 part of a silane coupling agent, and 1-2 parts of sulfonated graphene. The coating provided by the invention has the advantages that a coating layer prepared from the coating has a high absorption rate, high thermal conductivity, low radiance and high stability, and a conversion rate of solar energy by an endothermic coating is effectively improved; and the coating has good weather resistance and water resistance, and is a solar energy endothermic coating especially suitable for a solar energy heat absorber.

Description

technical field [0001] The invention relates to the field of solar energy, in particular to a novel thermal insulation and waterproof coating for solar energy. Background technique [0002] Solar absorbing coatings have a great impact on the technical and economic performance of solar energy utilization. In order to improve the efficiency of solar energy devices and reduce costs, solar science and technology workers in various countries attach great importance to the research and development of solar absorbing coatings, and have developed a variety of coatings. has been used in production with good results. [0003] Electroplating coating is a mature technology of solar absorbing materials, which can be divided into black chromium coating or black nickel coating. The absorption ratio α and emission ratio ε of black chromium coating are 0.93-0.97 and 0.07 respectively. -0.15, α / ε is 6-13, with excellent spectral selectivity. The thermal stability and high temperature resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/32C09D189/00C09D133/00C09D7/62C09D7/61C09D7/65C09D5/08
CPCC09D5/32C08K2003/2248C08K2003/2251C08K2003/2262C08K2003/2272C08K2003/2289C08K2003/3009C08L2201/08C08L2205/035C09D5/08C09D5/18C09D7/61C09D7/62C09D7/65C09D189/00C09D189/005C08L89/005C08L33/00C08L39/06C08L91/06C08K13/06C08K3/04C08K3/30C08K3/22
Inventor 贲道祥
Owner JIANGSU SHUANGNENG SOLAR ENERGY
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