Thermal insulation composite plate and applications thereof

Abstract

The invention provides a thermal insulation composite plate, which comprises a vacuum thermal insulation plate, a filling layer and a surface plate, wherein the filling layer is arranged between the surface plate and the vacuum thermal insulation plate, and at least one of the adhesion modes between the vacuum thermal insulation plate and the filling layer and between the filling layer and the surface plate uses a fiber layer. According to the present invention, by adding the fiber layer into the thermal insulation composite plate, the adhesion strength is substantially improved, and the gas between the PU hard foam filling layer and the surface plate and the gas carried during the vacuum thermal insulation plate edge folding process are slowly discharged in the permeating manner through the fiber layer, such that the generation of blistering, projecting and other quality problems in the thermal insulation composite plate can be avoided. The invention further provides applications of the thermal insulation composite plate, wherein the thermal insulation composite plate can be used in thermal insulation boxes or thermal insulation wall plates or refrigerators or refrigerated containers or electric water heaters and other thermal-insulating energy-saving products.

Description

technical field [0001] The invention relates to a composite board, in particular to a thermal insulation composite board Background technique [0002] At present, the world is facing an energy crisis, energy saving and emission reduction has become the focus of the world, and the development of new energy, new technology and new materials is imperative. Vacuum insulation panel (referred to as "VIP") is a high-efficiency thermal insulation material that combines the principle of vacuum insulation with traditional thermal insulation materials. As a new type of insulation material, it has low thermal conductivity and thin thickness, so it is widely used in refrigerators, insulation boxes, building walls, refrigerated containers and other fields, which can reduce energy consumption and improve economy. Development potential. [0003] In order to further improve the performance of vacuum insulation panels, the development and utilization of vacuum insulation panels are becoming...

AI Technical Summary

Problems solved by technology

[0005] 1. Due to the factors of the raw materials of the panel or PU hard foam itself, or due to the influence of changes in ambient temperature and humidity, there will be problems such as poor bonding between the PU hard foam and the panel and debonding;

[0006] Two, if figure 2 As shown, due to the thinness of the panel, low temperature resistance, easy softening and deformation, etc., the panel of the composite board will have obvious blistering or concave deformation within a period of time after the completion of PU foam compounding.

[0008] It is precisely because of the above three phenomena that quality problems often occur in the production process, resulting in repairs and waste of materials. Therefore, the inventor further studied this and developed a thermal insulation composite board, which resulted in this case

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