NiCr system flat plate solar energy spectrally selective absorbing coating and preparation method thereof

A flat-panel solar energy and absorbing coating technology, which is applied in coatings, chemical instruments and methods, metal material coating technology, etc., can solve the problems of high production cost of coatings, achieve good adhesion, adjustable color, and high deposition rate Effect

Active Publication Date: 2012-08-01
北京桑达太阳能技术有限公司
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Problems solved by technology

The optical performance of the blue film is very good, but the production cost of the coating is also high

Method used

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  • NiCr system flat plate solar energy spectrally selective absorbing coating and preparation method thereof
  • NiCr system flat plate solar energy spectrally selective absorbing coating and preparation method thereof

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 As shown, the NiCr-based flat panel solar spectrum selective absorption coating of the present invention comprises a base 1, on which a transition layer 2, an infrared reflective layer 3, an absorbing layer 4 and an anti-reflection layer 5. Wherein, the absorption layer 4 is composed of a first sublayer and a second sublayer.

[0017] In the above embodiments, the substrate 1 can be made of aluminum, copper or stainless steel.

[0018] In each of the above embodiments, the transition layer 2 is a CrN, CrON, SiN or SiON layer with a thickness of 20-100 nm; the infrared reflection layer 3 is a Cu layer or an Al layer with a thickness of 50-200 nm; Both the sub-layer and the second sub-layer are NiCrON+CrON (or SiON) films, and the thickness of the first sub-layer and the second sub-layer is 50-100 nm; the anti-reflection layer...

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Abstract

The invention relates to a NiCr system flat plate solar energy spectrally selective absorbing coating and a preparation method thereof. The coating comprises a substrate, wherein a transition layer, an infrared reflecting layer, an absorbing layer and an antireflection layer are arranged on the substrate from inside to outside in sequence by a direct current (DC) magnetron sputtering method; and the absorbing layer is formed by a first sublayer and a second sublayer. The preparation method is characterized by adopting NiCr alloys as conducting particles and comprises the following steps of: (1) selecting the substrate, and preparing the transition layer on the substrate by a metal target DC magnetron sputtering method; (2) preparing the infrared reflecting layer on the transition layer by the metal target DC magnetron sputtering method, wherein the metal target is a pure metal Cu or Al target; (3) preparing the absorbing layer on the infrared reflecting layer by the NiCr alloy target DC magnetron sputtering method; and (4) preparing the antireflection layer on the absorbing layer by the metal target DC magnetron sputtering method. The coating has the advantages of high deposition rate and short production cycle, and the adopted materials can meet the environmental requirement. The coating and the preparation method can be widely applied to the technical field of solar heat utilization materials.

Description

technical field [0001] The invention relates to a solar spectrum selective absorption coating and a preparation method thereof, in particular to a NiCr-based flat solar spectrum selective absorption coating prepared by DC magnetron reactive sputtering and a preparation method thereof. Background technique [0002] With the promotion and popularization of new energy sources, as well as the progress and development of science and technology, the integration of solar energy and buildings has higher and higher technical requirements for solar water heaters, and the market demand is becoming more and more urgent. Compared with vacuum tube solar water heater products, flat plate products are safe, reliable, efficient, pressure-resistant, more suitable for integration with buildings, and more conducive to promoting the development of building integration. The heat collecting plate is the core component of the flat solar collector. In order to make the heat collecting plate absorb t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/04B32B9/04B32B33/00C23C14/35C23C14/06C23C14/16
Inventor 尹万里崔银芳张敏孙守建李世杰王轩
Owner 北京桑达太阳能技术有限公司
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