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Heat absorbing coating material for solar panel heat collector

A technology for solar panels and heat-absorbing coatings, applied in radiation-absorbing coatings, anti-corrosion coatings, epoxy resin coatings, etc. The effect of photothermal conversion efficiency, outstanding thermal stability and high sensitivity

Inactive Publication Date: 2019-04-16
安徽兆拓新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of black material has a better absorption effect on sunlight radiation, the light-to-heat conversion rate of the material has not been greatly improved, and the absorbed light energy is effectively converted into internal energy. relatively low

Method used

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  • Heat absorbing coating material for solar panel heat collector
  • Heat absorbing coating material for solar panel heat collector
  • Heat absorbing coating material for solar panel heat collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A heat-absorbing coating for a solar panel heat collector. According to the mass percentage, the components of the heat-absorbing coating include: 30% of a heat-absorbing agent, 15% of a cured resin, 2% of a film-forming aid, and the balance being a solvent;

[0029] Wherein, the endothermic agent is a solid mixture after photothermal sensitization treatment, and the method of photothermal sensitization treatment includes the following steps:

[0030] (1) Evenly ball-milling the heat-absorbing agent components, respectively using acetone solvent and deionized water to carry out circular cleaning;

[0031] (2) Add the cleaned endothermic agent into the photothermosensitization A liquid according to the solid-to-liquid ratio of 1:5, and add 0.7wt% of sulfamic acid accounting for the mass of the endothermic agent to the photothermosensitization A liquid at the same time Acid and 2.5wt% KBM-403 silane coupling agent, uniformly dispersed and soaked for 45 minutes, after the ...

Embodiment 2

[0045] A heat-absorbing coating for a solar panel heat collector. According to the mass percentage, the components of the heat-absorbing coating include: 35% of a heat-absorbing agent, 25% of a cured resin, 6% of a film-forming aid, and the balance being a solvent;

[0046] Wherein, the endothermic agent is a solid mixture after photothermal sensitization treatment, and the method of photothermal sensitization treatment includes the following steps:

[0047] (1) Evenly ball-milling the heat-absorbing agent components, respectively using acetone solvent and deionized water to carry out circular cleaning;

[0048] (2) Add the cleaned endothermic agent into the photothermosensitization A liquid according to the solid-to-liquid ratio of 1:5, and add 0.7wt% of sulfamic acid accounting for the mass of the endothermic agent to the photothermosensitization A liquid at the same time Acid and 2.5wt% KBM-403 silane coupling agent, uniformly dispersed and soaked for 60 minutes, after the so...

Embodiment 3

[0062] A heat-absorbing coating for a solar panel heat collector. According to the mass percentage, the components of the heat-absorbing coating include: 33% of heat-absorbing agent, 20% of cured resin, 4% of film-forming auxiliary agent, and the balance is solvent;

[0063] Wherein, the endothermic agent is a solid mixture after photothermal sensitization treatment, and the method of photothermal sensitization treatment includes the following steps:

[0064] (1) Evenly ball-milling the heat-absorbing agent components, respectively using acetone solvent and deionized water to carry out circular cleaning;

[0065] (2) Add the cleaned endothermic agent into the photothermosensitization A liquid according to the solid-to-liquid ratio of 1:5, and add 0.7wt% of sulfamic acid accounting for the mass of the endothermic agent to the photothermosensitization A liquid at the same time Acid and 2.5wt% KBM-403 silane coupling agent, uniformly dispersed and soaked for 55 minutes, after the...

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Abstract

The invention relates to the technical field of solar environmental-friendly materials, and particularly relates to a heat absorbing coating material for a solar panel heat collector. The heat absorbing coating material comprises, by weight, 30-35% of a heat absorbing agent, 15-25% of cured resin, 2-6 parts of a film forming auxiliary and the balanced solvent, wherein the heat absorbing agent is asolid mixture on which photothermal sensitization treatment is conducted, the heat absorbing agent comprises carbon black, iron-manganese black, phthalo blue, anatase titanium dioxide, silicon carbide and nickel cobalt iron alloy micro powder with the weight not higher than 5%, fluorocarbon resin, polyurethane resin, epoxy resin or organic silica resin is selected as the cured resin, and the solvent is the equal mass ratio mixture of one of acetone, cyclohexanone and dimethylbenzene and butyl acetate. Compared with a conventional heat absorbing coating material, the heat absorbing coating material has the advantages of better irradiation absorbing rate and photo-thermal conversion rate, and the heat absorbing coating material is suitable for the preparation of a panel heat collector.

Description

technical field [0001] The invention relates to the technical field of solar energy environment-friendly materials, in particular to a heat-absorbing coating for a solar panel heat collector. Background technique [0002] Clean energy such as wind energy, water energy, geothermal energy, solar energy, and nuclear energy is the direction of future energy industry development. Solar energy is the most important form of clean energy. It is the safest and most environmentally friendly of all new energy types. The available energy reserves are also very large, and the development prospects are very broad. The technical route of solar energy utilization mainly includes photovoltaic and solar thermal technology. Among them, the most important application of solar thermal technology in the lives of ordinary users is solar water heater products. Conventional solar water heaters on the market include two types: vacuum tube type and flat plate type. The core device of the flat type so...

Claims

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Application Information

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IPC IPC(8): C09D127/12C09D175/04C09D163/00C09D5/32C09D5/08
CPCC08K2003/0843C08K2003/0856C08K2003/0862C08K2003/2241C09D5/08C09D5/32C09D127/12C09D163/00C09D175/04C08K13/06C08K9/04C08K3/04C08K3/22C08K3/34C08K3/08
Inventor 陆志鹏
Owner 安徽兆拓新能源科技有限公司
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