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A vacuum insulation material with low thermal conductivity, wide temperature range and long life

A vacuum insulation material and wide temperature range technology, applied in thermal insulation, building components, etc., can solve the problems of long refrigeration time, short service life, high thermal conductivity, etc., achieve huge economic and social benefits, and prolong service life.

Active Publication Date: 2020-07-28
英索来欣(苏州)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

[0007] The materials involved in the current vacuum insulation panel patents generally have high thermal conductivity, generally short service life, and long refrigeration time, which is difficult to meet the further requirements of industrial enterprises and the country for green environmental protection.

Method used

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  • A vacuum insulation material with low thermal conductivity, wide temperature range and long life
  • A vacuum insulation material with low thermal conductivity, wide temperature range and long life

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weighing parts by weight are 60 parts of superfine glass fiber, 15 parts of airgel powder, 2 parts of carbon black opacifying agent, 1 part of silicon carbide reflector, and 10 parts of phase change material, wherein the airgel is selected as silicon dioxide Airgel powder, the opacifying agent is carbon black opacifying agent, the reflective agent is silicon carbide reflective agent, and it is prepared as a core material multilayer structure, wherein the number of layers is 5-10 layers, and the superfine glass fiber crossed between the two layers The included angle in the radial direction is 90°. The phase change material can be selected as an inorganic phase change material or an organic phase change material, preferably crystal water and salts, metals, alloys, paraffin, acetic acid and the like.

[0025] The core material is covered with a vacuum film layer 5, and the edge of the vacuum film layer 5 is packaged. There are four sets of package structures 7, where the e...

Embodiment 2

[0030] The parts by weight are 85 parts of superfine glass fiber, 11 parts of airgel powder, and 5 parts of opacifying agent, including 3 parts of carbon black opacifying agent, 1.7 parts of silicon carbide opacifying agent, and 0.3 part of zirconium carbide opacifying agent, 1 part of silicon carbide reflector, 25 parts of phase change material. It is prepared as a core material multi-layer structure, wherein the number of layers is 6-8 layers, and the included angle of the radial direction of the superfine glass fibers intersecting between the two layers is 90°. The phase change material can be selected as an inorganic phase change material or an organic phase change material, preferably crystal water and salts, metals, alloys, paraffin, acetic acid and the like.

[0031]The core material is covered with a vacuum film layer 5, and the edge of the vacuum film layer 5 is packaged. There are four sets of package structures 7, where the edge sealing positions are respectively se...

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Abstract

The invention provides a low-thermal-conductivity wide-temperature-range long-life vacuum thermal insulation material. The vacuum thermal insulation material is provided with a core material, a vacuumfilm layer and a protective layer from inside to outside in sequence. The core material comprises, by weight, 60-85 parts of superfine glass fiber, 11-15 parts of aerogel, 2-8 parts of opacifier, 1-5parts of reflecting agent and 0.1-25 parts of phase change material. The thermal conductivity coefficient of the vacuum thermal insulation material is within 1.0-1.5 mW / m.K and has the absolute advantages compared with the conventional thermal conductivity coefficient of 2.0-2.5 mW / m.K. In addition, the vacuum thermal insulation material is provided with four edge sealing structures, the edge sealing defect caused by common packaging is overcome, and the requirement for the thermal insulation machine in the field of the wide temperature range can be met. Meanwhile, the thermal insulation material provided by the invention is applied to the building field and the white household appliance field, the service life of products is greatly prolonged, and the vacuum thermal insulation material can create huge economic and social benefits.

Description

technical field [0001] The invention belongs to the field of thermal insulation materials, in particular to a vacuum thermal insulation material with low thermal conductivity, wide temperature range and long service life. Background technique [0002] Building thermal insulation is an important aspect of saving energy, improving the living environment and using functions. Building energy consumption generally accounts for 30-40% of the total energy consumption of human beings, most of which are heating and air conditioning energy consumption, so building energy conservation is of great significance. As an important branch of building insulation materials, vacuum insulation materials have occupied more than half of the position. As a common vacuum insulation material, vacuum insulation panels have become a new type of material due to their unique thermal insulation properties. dominant direction. However, at present, the vacuum insulation panel is limited by the thermal bri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/78C04B30/02
CPCC04B30/02E04B1/78C04B14/42C04B14/064C04B14/022C04B14/324C04B2103/0071C04B14/322
Inventor 李焕勇徐滕州马汝军马昊其他发明人请求不公开姓名
Owner 英索来欣(苏州)新材料科技有限公司
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