Nano black chrome highly selective endothermic film formula and preparation method thereof

A high-selectivity, heat-absorbing film technology, applied in the direction of coating, can solve the problems of not being effectively improved and optimized, expensive magnetron sputtering coating manufacturing equipment, short service life, etc., and achieve strong market prospects and Prospect of economic benefits, excellent product stability, simple and feasible preparation process

Inactive Publication Date: 2018-10-02
德州金奈尔新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat-absorbing film technology of flat-plate collectors in my country has not been effectively improved and optimized. The coatings used in domestic flat-plate solar collectors mainly include paint coatings, anodic oxidation coatings, black chrome coatings and magnetic coatings. Controlled Sputtering Coating
At present, the paint coatings on the market have high emissiv

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0013] A nano black chromium highly selective heat-absorbing film layer formula, raw materials are composed of base material, nano chromium trioxide powder and ethanol, the mass of base material accounts for 25% of the total mass of raw materials; the mass of nano chromium trioxide powder accounts for 5% of the total mass of raw materials; the quality of ethanol accounts for 70% of the total mass of raw materials. The base material includes manganese acetate, ferric chloride, nickel chloride and copper chloride. The mass ratio of each component used in the base material is: acetic acid Manganese: ferric chloride: copper chloride: nickel chloride is 4:2:3:1. The four components of the substrate are all analytical pure reagents; the purity of the nano-chromium trioxide powder is greater than 99.9%, the particle diameter D50 is less than 20 nanometers, and the shape is irregular; the purity of ethanol is 99.9%.

[0014] The preparation method of the above-mentioned nano black chr...

example 2

[0016] A nano black chromium highly selective heat-absorbing film layer formula, raw materials are composed of base material, nano chromium trioxide powder and ethanol, the mass of base material accounts for 20% of the total mass of raw materials; the mass of nano chromium trioxide powder accounts for 5% of the total mass of raw materials; the quality of ethanol used accounts for 75% of the total mass of raw materials. The base material includes manganese acetate, ferric chloride, nickel chloride and copper chloride. The mass ratio of each component used in the base material is: acetic acid Manganese: ferric chloride: copper chloride: nickel chloride is 3:3:2:1. The four components of the substrate are all analytical pure reagents; the purity of the nano-chromium trioxide powder is greater than 99.9%, the particle diameter D50 is less than 20 nanometers, and the shape is irregular; the purity of ethanol is 99.9%.

[0017] The preparation method of the above-mentioned nano blac...

example 3

[0019] A nano black chrome highly selective heat-absorbing film layer formula, raw materials are composed of base material, nano chromium trioxide powder and ethanol, the mass of base material accounts for 30% of the total mass of raw materials; the mass of nano chromium trioxide powder accounts for 7% of the total mass of raw materials; the quality of ethanol used accounts for 63% of the total mass of raw materials. The base material includes manganese acetate, ferric chloride, nickel chloride and copper chloride. The mass ratio of each component used in the base material is: acetic acid Manganese: ferric chloride: copper chloride: nickel chloride is 5:1:4:1. The four components of the substrate are all analytical pure reagents; the purity of the nano-chromium trioxide powder is greater than 99.9%, the particle diameter D50 is less than 20 nanometers, and the shape is irregular; the purity of ethanol is 99.9%.

[0020] The preparation method of the above-mentioned nano black ...

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Abstract

The invention discloses a nano black chrome highly selective endothermic film formula and a preparation method thereof. The raw materials consist of a base material, nano dichromium trioxide powder and ethanol; the base material includes manganese acetate, ferric chloride, nickel chloride and cupric chloride; and the mass ratio of the components which are the manganese acetate, the ferric chloride, the nickel chloride and the cupric chloride in the base material is 3-5:1-3:2-4:1. The nano material uniformly is deposited on the surface of the metal base material; and through actual measurement,solar absorptivity is greater than 93%, and infrared emissivity is less than 10%; the obtained film has excellent product stability, weatherability and optical performance; and the preparation technology is simple and feasible, and the formula and the preparation method have stronger market prospects and economic benefits prospects.

Description

technical field [0001] The invention relates to the technical field of heat-absorbing materials, in particular to a nano black chromium high-selectivity heat-absorbing film layer formula and a preparation method thereof. Background technique [0002] With the domestic energy and environmental protection issues, solar energy has been paid more and more attention as an inexhaustible clean energy. In the field of solar energy utilization technology, solar flat panel collectors are more and more favored by the building integration market and consumers. The preparation technology of heat-absorbing film is the core technology of flat-panel solar energy, which is related to the core and quality of the product, from simple black paint in the early stage to metal oxide coating with organic adhesives such as rubber and resin, to electroplating, anode The oxidized black chromium and the blue titanium film of the physical vapor phase method have gone through a long process. The perfor...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D7/61
CPCC09D1/00
Inventor 王俊华
Owner 德州金奈尔新材料科技有限公司
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