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Glass fiber core material for vacuum heat insulation plate

A technology of vacuum insulation board and glass fiber, which is applied in the direction of thermal insulation protection of pipelines, heat exchange equipment, thermal insulation, etc., to achieve the effect of reducing production costs, improving product performance, and huge market competitiveness.

Active Publication Date: 2019-06-28
苏州邦季新材料科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is to provide a glass fiber core material for vacuum insulation panels, which can solve the above-mentioned shortcomings of the core material prepared by the existing method

Method used

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  • Glass fiber core material for vacuum heat insulation plate

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Experimental program
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Effect test

Embodiment 1

[0015] The three known elements of heat transfer are: ① heat conduction, ② heat radiation, and ③ heat convection.

[0016] For vacuum insulation panels, since there is no air and it is in a vacuum state, the phenomenon of heat convection can be ignored. And because the outer layer of the vacuum insulation panel is an aluminum film structure, the problem of heat radiation can also be ignored. The heat conduction caused by the physical contact between the glass fibers in the core material can transfer heat. In other words, in order to achieve a better heat insulation effect, it is necessary to reduce the contact between the glass fibers in the core material, reduce the heat conduction area, and improve the heat preservation effect of the vacuum insulation panel.

[0017] The invention discloses a glass fiber core material for a vacuum heat insulation panel, which is a mesh mat formed by using chopped glass fibers as raw materials. In each layer of the layered structure, the ch...

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Abstract

The invention discloses a glass fiber core material for a vacuum heat insulation plate. The core material is a net felt formed by taking chopped glass fibers as raw materials, the sum of the weight percentage of K2O and Na2o in the chopped glass fiber is less than or equal to 1. 3%; the average diameter of the chopped glass fiber is 9.5[mu]m or less; and the number of stacked layers of the net felt in the core material is more than three layers. The glass fiber core material for the vacuum heat insulation plate disclosed has the advantages that the performance of the core material product is improved while the performance of the core material product is improved, the method has the advantages that the production cost is reduced to the maximum extent, the market competitiveness is huge, andthe method has an innovative significance in the field of core materials for vacuum heat insulation plates.

Description

technical field [0001] The invention relates to the field of heat insulation materials, in particular to a glass fiber core material for a vacuum heat insulation board. Background technique [0002] Vacuum insulation panel (VIP board) is the abbreviation of Vacuum Insulation Panel in English. It is a kind of vacuum insulation material. It is composed of filling core material and vacuum protection surface layer. Its thermal conductivity is low, less than 0.0025w / (㎡· k), is currently the most advanced high-efficiency thermal insulation material in the world. The vacuum insulation panel industry started in Germany and took root in China around 2005. From the original control of the entire market by German and Japanese companies to the current control of the global market by Chinese companies, Chinese companies have made a lot of technological innovations and creations. [0003] The ways of heat transfer are: heat conduction, heat convection and heat radiation. For the vacuum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/065
CPCF16L59/065
Inventor 蔡中南
Owner 苏州邦季新材料科技有限公司