Vacuum insulation panel

Abstract

The invention discloses a vacuum insulation panel, comprises core material, a breathable bag encapsulating the core material and an aluminum foil bag encapsulating the breathable bag. The core material comprises powder and / or fiber. The breathable bag is stitched with sealing lines on its edge and stitched with stereotyped dividing lines on its body, and is coated with a breathable coating layer on its surface after being stitched. The breathable bag coated with the breathable coating layer is encapsulated inside the aluminum foil bag after vacuum treatment. The insulation panel is in a structure of flat plate or in a structure that the flat plate is divided into a plurality of strips or blocks by grooves formed by the stereotyped dividing lines. The core material of the vacuum insulation panel is sealed by stitching the bag body and adopts a stereotyped dividing structure, which can help prevent powder and / or fiber leakage effectively. Moreover, the core material has good shaping effect, solid sealing structure and simple processing technique. As the bag body uses flame-retardant fibrofelt and nonwovens as materials for encapsulating the core material, and the stereotyped coating layer coated on the surface of the bag body has good air permeability, the core material has good effect of air permeability.

Description

technical field [0001] The invention relates to a thermal insulation board structure, which is mainly used for thermal insulation of building walls, in particular to a vacuum thermal insulation board. Background technique [0002] Vacuum Insulation Panel (VIP panel for short) is one of the vacuum insulation materials. 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, less than 0.004w / m.k. It has the characteristics of environmental protection and high efficiency and energy saving. It is currently the world's most Advanced high-efficiency insulation materials. Vacuum insulation panels are heat insulation and environmental protection materials with excellent heat insulation performance, and there is no pollution in the process of manufacture, use and post-use treatment. It meets the revolutionary requirements for the future devel...

AI Technical Summary

Problems solved by technology

However, powder materials and microfiber materials have some shortcomings in the process of use. The powder materials are mainly fumed silica abroad. Due to the light bulk density of the powder materials, the production process is more polluted and the production efficiency is low.

The fiber material is processed into a sheet, which is convenient to use, but the expansion rate of the material is large after processing, and it is elastic after vacuum forming, which causes inconvenience to the construction

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