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Solar heat absorbing material

A solar energy absorption and absorbent technology, which is applied in solar thermal power generation, radiation absorbing coatings, fireproof coatings, etc., can solve the problems of difficulty in large-scale development and utilization, low energy density, discontinuity, etc. Excellent aging resistance

Inactive Publication Date: 2018-03-09
GUANGXI JIKUAN SOLAR ENERGY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Solar thermal application is one of the simplest, most direct, and most effective ways for human beings to utilize solar energy. However, due to the small and discontinuous energy density of solar energy after reaching the earth, it has brought difficulties to large-scale development and utilization.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Mix 6 parts of manganese dioxide, 2 parts of ferric oxide, and 1 part of titanium dioxide uniformly as absorbent 1.

[0021] Add 20 parts of absorbent 1 to 10 parts of p-xylene, 40 parts of epoxy-modified acrylate resin, and 5 parts of additives (the weight ratio of leveling agent, wetting agent and defoamer is 2:1:1), 1 part of 2-bromo-2-(2-fluorophenyl)-1-cyclopropylethanone and 2-(2-nitroanilino)-3-cyano-5-methylthiophene mixture, using ball milling Grind the hair method until the particle size is less than 100 mesh, and then add 8 parts of dry oil alkyd resin.

[0022] The prepared paint was sprayed on a degreased zinc plate, and cured at room temperature to form a 6um coating with a solar absorptivity of 0.952 and an emissivity of 0.19.

Embodiment 2

[0024] Mix 7 parts of manganese dioxide, 3 parts of ferric oxide, and 2 parts of titanium dioxide uniformly as absorbent 2.

[0025] Add 25 parts of absorbent 2 to 15 parts of p-xylene, 50 parts of epoxy-modified acrylate resin, and 8 parts of additives (the weight ratio of leveling agent, wetting agent and defoamer is 1:0.8:0.8), 2 parts of 2-bromo-2-(2-fluorophenyl)-1-cyclopropylethanone and 2-(2-nitroanilino)-3-cyano-5-methylthiophene mixture, using ball milling Grind the powder until the particle size is less than 100 mesh, and then add 10 parts of dry oil modified alkyd resin.

[0026] The prepared paint was sprayed on a degreased zinc plate, and cured at room temperature to form a 6um coating with a solar absorptivity of 0.955 and an emissivity of 0.21.

Embodiment 3

[0028] Add 30 parts of absorbent 3 to 25 parts of p-xylene, 65 parts of epoxy-modified acrylate resin, 5 parts of additives (the weight ratio of leveling agent, wetting agent and defoamer is 2:3:3), 3 parts of mixtures of 2-bromo-2-(2-fluorophenyl)-1-cyclopropylethanone and 2-(2-nitroanilino)-3-cyano-5-methylthiophene, using ball milling Grind the powder until the particle size is less than 100 mesh, and then add 12 parts of dry oil modified alkyd resin.

[0029] The prepared paint was sprayed on a degreased zinc plate, and cured at room temperature to form a 6um coating with a solar absorptivity of 0.952 and an emissivity of 0.25.

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Abstract

A solar heat absorbing material comprises resin, a curing agent, an absorbing agent, a solvent, an assistant and an absorbing fortifier. A solar heat absorbing coating is prepared through the following components in parts by weight: 1-3 parts of the mixture of 2-bromo-2-(2-fluorophenyl)-1-cyclopropyl and butanone-2-(2-nitroaniline)-3-cyano-5-thiotolene, 40-60 parts of epoxy modified acrylate resin, 8-12 parts of drying oil modified alkyd resin, 6-8 parts of manganese dioxide, 2-4 parts of ferric oxide, 1-3 parts of titanium dioxide, 10-30 parts of paraxylene, and 5-8 parts of an assistant. According to the solar heat absorbing material, the solar absorbing rate can reach 95% or above, and the transmission rate is 0.19-0.25.

Description

technical field [0001] The invention belongs to heat-absorbing paints, in particular to solar heat-absorbing paints. Background technique [0002] Energy utilization occupies a pivotal position in the development of human society, but the excessive development of resources and low efficiency of resource utilization make human beings face a severe test. As we all know, solar energy is the most abundant and widely available renewable energy, which plays a major role in solving energy crisis and environmental problems. , making it a hot research topic in various countries. Solar energy is generated by the hydrogen-helium fusion of hydrogen atoms inside the sun and releases huge nuclear energy, which is the radiant energy from the sun. Most of the energy required by human beings comes directly or indirectly from the sun. Plants release oxygen and absorb carbon dioxide through photosynthesis, and convert solar energy into chemical energy and store it in plants. Fossil fuels s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/14C09D5/32C09D7/61C09D7/63F24S70/275
CPCY02E10/40C09D133/14C08K2003/2241C08K2003/2262C08K2003/2272C08L2201/08C09D5/18C09D5/32C08L67/08C08K13/02C08K3/22C08K5/07C08K5/45
Inventor 陈明贤谢彤方凤才黄可煜马付杰
Owner GUANGXI JIKUAN SOLAR ENERGY EQUIP
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