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Ultrahigh-reflectivity composite material and preparation method thereof

A composite material and ultra-high technology, applied in the field of ultra-high reflection composite materials and their preparation, to achieve good corrosion resistance and weather resistance, improve total reflectivity, and protect metal coatings

Inactive Publication Date: 2012-06-27
上海安美特铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, provide an ultra-high reflection composite material and its preparation method, overcome the problem of its low reflectivity to the light source, improve the utilization rate of light efficiency, and effectively save energy and reduce costs the role of

Method used

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  • Ultrahigh-reflectivity composite material and preparation method thereof
  • Ultrahigh-reflectivity composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the ultra-high reflection composite material of this embodiment includes a substrate 1, an affinity layer 2, a metal coating 3 and a protective layer. The protective layer includes a first protective layer 5 and a second protective layer 4. The substrate 1, the affinity layer And layer 2, metal plating layer 3, second protective layer 4 and first protective layer 5 are covered sequentially from bottom to top. The substrate 1 is a metal material, including aluminum, iron, copper, etc.; the affinity layer 2 is a porous layer with a thickness of 1 μm-4 μm; the metal plating layer is an aluminum-coated layer with a purity of 99.99%, and its thickness is 0.05 μm-1 μm; The second protective layer is a fluoride coating with a thickness of 0.03 μm-3 μm; the first protective layer is an oxide coating with a thickness of 0.03 μm-3 μm.

Embodiment 2

[0026] The ultra-high reflection composite material in the above embodiment is prepared by the preparation method in this embodiment.

[0027] A method for preparing an ultra-high reflection composite material, comprising the following steps:

[0028] In the first step, an aluminum plate is selected as the substrate 1, and then a 1.5 μm porous oxide film is prepared on the aluminum plate by anodizing, which is the affinity layer 2;

[0029] In the second step, a 0.05 μm aluminum coating with a purity of 99.99% is obtained on the affinity layer 2 by magnetron sputtering, which is the metal coating 3;

[0030] The third step is to attach a 0.06 μm magnesium fluoride coating on the metal coating 3 by thermal evaporation method, that is, the second protective layer 4;

[0031] The fourth step is to prepare a 0.1 μm titanium dioxide coating on the second protective layer 4 by sputtering, that is, the first protective layer 5 , so as to prepare a composite material with super high ...

Embodiment 3

[0035] This embodiment is a modification of Embodiment 2, and the difference lies in that different metal materials are used as the base materials.

[0036] In the present invention, the reflectivity structure comparison of different material substrates is as follows:

[0037] Substrate

[0038] From the above results, it can be seen that substrates of different materials have different reflectivity, and relatively speaking, copper and aluminum have better reflection effects when used as substrates.

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Abstract

The invention discloses an ultrahigh-reflectivity composite material and a preparation method thereof. The high-reflectivity composite material is composed of a base material, an affinity layer, a metal coating layer and a protective layer from bottom to top, wherein the protective layer is composed of a first protective layer and a second protective layer and is a coating of oxide, fluoride and the like. When visible light radiates to the first protective layer, a part of light is reflected to atmosphere, the other part of light transmits the first protective layer to arrive at the surface of the second protective layer, a part of light is reflected by the first protective layer, the surplus light transmits the second protective layer to arrive at the surface of the metal coating layer, a small part of light is absorbed by the metal coating layer, and the rest most of light is basically subjected to total reflection to be reflected to the atmosphere after transmitting the second protective layer and the first protective layer. Therefore, the composite material has extremely high reflectivity to a visible light region, and is an ultrahigh-reflectivity material; and the highest reflectivity is up to 98%.

Description

technical field [0001] The present invention relates to a kind of composite material, in particular, it is a kind of ultra-high reflective composite material and its preparation method. Also excellent. Background technique [0002] In the architectural lighting and decorative lighting industries, the requirements for the appearance and reflectivity of the board are relatively high. Usually, the reflectivity of lighting-grade aluminum plate is about 86%, which cannot meet the requirements of high-precision optical instruments, lighting tools and solar energy equipment. At present, the vacuum coating technology on the metal surface is mostly used in the market to improve its reflectivity. How to protect the vacuum coating layer and further improve the reflectivity on the basis of it has become a hot topic of concern. [0003] After searching the existing technology, the Chinese utility model patent: "mirror aluminum alloy plate", application number: 97237389.6, this patent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/04B32B3/24B32B9/04B32B33/00
Inventor 李凡李立群胡慧慧
Owner 上海安美特铝业有限公司
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