Vacuum insulation panel and its preparation method

A vacuum insulation panel and vacuum technology, which is applied in heat exchange equipment, mechanical equipment, and pipelines through heat insulation protection, can solve the problems of large thermal bridge effect, high thermal conductivity, and high thermal conductivity of aluminum in vacuum insulation panels, and reduce product quality. The effect of scrap rate, high strength and many reactive groups

Active Publication Date: 2021-09-21
HAIER SMART HOME CO LTD
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Problems solved by technology

[0005] The barrier properties of coating materials are generally achieved by metal films or metal coatings. The common metal material is aluminum. Aluminum is widely used in the coating of vacuum insulation panels because of its good ductility, low cost and good barrier properties. Among the materials, however, aluminum has a high thermal conductivity (225w / mk), which often leads to a large thermal bridge effect and a high thermal conductivity of the prepared vacuum insulation panel

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  • Vacuum insulation panel and its preparation method

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[0037] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific implementation methods of the present application. Apparently, the described implementations are only some of the implementations of this application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0038] An embodiment of the present invention provides a vacuum insulation panel, including an airgel composite film; the airgel composite film is a closed structure, and the airgel composite film is closed to form a vacuum cavity; the vacuum cavity is filled with a core material, the core The material is filled with getter;

[0039] The airgel composite memb...

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Abstract

The invention provides a vacuum insulation panel, comprising an aerogel composite film; the aerogel composite film is a closed structure, and the aerogel composite film is closed to form a vacuum cavity; the vacuum cavity is filled with a core material, and the core The material is filled with a getter; the aerogel composite film includes an aerogel felt and a film coating material in turn from the outside to the inside; the aerogel felt is attached to the surface of the film material; the aerogel felt includes silicone Aerogel; wherein, organosilicon aerogel is prepared from graphene oxide modified by aminosilane coupling agent to prepare organosilicon precursor, and is prepared by hydrolysis-sol-gel-drying. The present invention utilizes aminosilane coupling agent to pre-treat graphene oxide, and then utilizes the characteristics of large surface area, many reactive groups and high strength of graphene oxide to enhance and improve the brittleness and brittleness of aerogel, and The use of smaller aerogel voids can reduce the thermal bridge effect of the vacuum insulation panel.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, and relates to an airgel vacuum insulation panel and a preparation method thereof. Background technique [0002] Vacuum insulation panel is a kind of vacuum insulation material. It is composed of filling core material and vacuum protection surface layer. It can effectively avoid the heat transfer caused by air convection, so the thermal conductivity can be greatly reduced, and it has the advantages of environmental protection, high efficiency and energy saving. It is the most advanced high-efficiency thermal insulation material in the world at present. With its extremely low thermal conductivity, it has the advantages of thin insulation layer thickness, small size and light weight when the thermal insulation technical requirements are the same. It is suitable for products with high energy-saving requirements. It has great technical and economic significance. Refrigerator doo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L59/065F16L59/02
Inventor 刘站站李鹏高元锋
Owner HAIER SMART HOME CO LTD
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