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Composite film material of selective solar heat absorbing coating and preparation method of composite film material

A composite thin film and solar thermal technology, which is applied in the components of solar collectors, solar thermal energy, solar thermal power generation, etc., can solve the problems of inflexibility of the middle sublayer, poor product performance and appearance color, etc., and achieve design Flexible, ingenious design, and quality-improved effects

Inactive Publication Date: 2015-04-22
福建新越金属材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a composite thin film material of selective solar heat absorbing coating and its preparation method. Its main purpose is to overcome the lack of flexibility in production and design of the existing method for preparing the middle sub-layer and the performance and appearance of the product. often poor defect

Method used

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  • Composite film material of selective solar heat absorbing coating and preparation method of composite film material
  • Composite film material of selective solar heat absorbing coating and preparation method of composite film material
  • Composite film material of selective solar heat absorbing coating and preparation method of composite film material

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preparation example Construction

[0032] A method for preparing a selective solar heat absorbing coating, comprising the following steps:

[0033] Step 1. Using electron beam evaporation or AC magnetron sputtering process, aluminum strip, stainless steel strip or copper strip is used as the metal strip substrate 5, and a layer of high Reflective base layer 4 .

[0034] Step 2. Using electron beam evaporation or AC magnetron sputtering process, one or more coatings are plated on the highly reflective base layer 4 obtained in step 1 to establish the main absorbing coating of the selective solar heat absorbing coating film system. Layer 3, the primary absorptive coating 3 is prepared by co-sputtering two different target materials in the same coating chamber, where the target material used can be pure metal, alloy, non-metal, Metal oxides or mixtures of metal oxides. The method of co-sputtering with two different target materials will make the design of the selective solar heat absorbing coating more flexible a...

Embodiment 1

[0039] An antireflection layer based on a TCO material, comprising a TCO transparent conductive oxide coating 2 as a secondary antireflection layer and a SiO2 (SiOx) oxide coating 1 as a main antireflection layer, the SiO2 (SiOx) The oxide coating 1 covers the TCO transparent conductive oxide coating 2 . The TCO transparent conductive oxide coating 2 is prepared by a DC magnetron sputtering process using a composite TCO target. The SiO2 (SiOx) coating is prepared by using electron beam evaporation or AC magnetron sputtering process. The composite TCO target is a metal oxide or a mixture of metal oxides. The composite TCO target material is ZnO:Al2O3 (AZO).

[0040] In this embodiment, AZO, a semi-conductive coating material with a high refractive index, can replace the secondary anti-reflection layer material in the middle sub-layer structure of the traditional selective solar heat absorption coating film system. Compared with the sub-anti-reflection layer material (usually...

Embodiment 2

[0043] An antireflection layer based on a TCO material, comprising a TCO transparent conductive oxide coating 2 as a secondary antireflection layer and a SiO2 (SiOx) oxide coating 1 as a main antireflection layer, the SiO2 (SiOx) The oxide coating 1 covers the TCO transparent conductive oxide coating 2 . The TCO transparent conductive oxide coating 2 is prepared by a DC magnetron sputtering process using a composite TCO target. The SiO2 (SiOx) coating is prepared by using electron beam evaporation or AC magnetron sputtering process. The composite TCO target is a metal oxide or a mixture of metal oxides. The composite TCO target is ZnO:Ga2O3 (GZO).

[0044] In this embodiment, GZO, a semi-conductive coating material with a relatively high refractive index, can replace the secondary anti-reflection layer material in the middle sub-layer structure of the traditional selective solar heat absorption coating film system. Compared with the sub-anti-reflection layer material (usual...

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Abstract

The invention discloses a composite film material of a selective solar heat absorbing coating. The composite film material is prepared by a method as follows: co-sputtering two different target materials in a same coating cavity, wherein the adopted target materials can be pure metals, alloys, non-metals, metallic oxides or mixtures of the metallic oxides. Furthermore, the invention further discloses a preparation method of the composite film material. The composite film material disclosed by the invention is skillful in design and strong in practicability; by virtue of the method of co-sputtering the two different target materials, the prepared selective solar heat absorbing coating is more flexible and changeable in design, and through the flexible and changeable design, the selective solar heat absorbing coating is more excellent in the aspects of performance and appearance color.

Description

technical field [0001] The invention relates to a selective solar heat absorption coating for a flat solar heat collector, in particular to a composite thin film material of the selective solar heat absorption coating and a preparation method thereof. Background technique [0002] For the application of flat-panel solar collectors, the most common and common preparation technique is to prepare selective solar heat absorbing coatings on metal plates. For now, the vast majority of selective solar heat absorbing coatings are made by vacuum coating. [0003] The vacuum coating method is used to prepare the selective solar heat absorption coating, which includes a multi-layer thin film structure to form a film system of the selective solar heat absorption coating. Typically, selective solar heat absorbing coatings include a highly reflective substrate with low infrared emissivity. One or more intermediate sublayers are stacked on the infrared high reflection base layer, and thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/08C23C14/30F24J2/48
CPCY02E10/40C23C14/08C23C14/06C23C14/10C23C14/30F24S70/10
Inventor 马丁瑞纳眭凌杰
Owner 福建新越金属材料科技有限公司
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