Vacuum insulation material for blocking radiant heat

Abstract

Disclosed is a core member for a vacuum insulation material, the core member having high initial insulation performance and radiant heat blocking performance, and the vacuum insulation material using same. The vacuum insulation material according to the present invention comprises a plurality of core layers, a radiant heat blocking film which is disposed between the plurality of core layers, and an outer skin material which vacuum-packs the core layers and the radiant heat blocking film.

Description

technical field [0001] The present invention relates to a core material for a vacuum heat insulating material and a vacuum heat insulating material having the core material as a structure. The core material for a vacuum heat insulating material is characterized in that it includes: a plurality of core layers; between core layers. Background technique [0002] In the case of conventional vacuum insulation materials, the outer skin material is composed of a multilayer film including metal vapor deposition film or aluminum foil, and glass fiber (Glass fiber), fumed silica (Fumed silica), etc. are used as the core material of the content, In the case of absorbent materials, calcium oxide (CaO) is suitable. [0003] Although Korean Patent Laid-Open Publication No. 2004-0047256 and Korean Registered Patent No. 10-0823406 disclose a vacuum insulation material including a core material containing an inorganic fiber polymer and a core material including a fiber aggregate, etc., they...

AI Technical Summary

Problems solved by technology

However, heat is transferred through conduction, convection, and radiation, and the heat transfer based on radiation cannot be blocked, so there is a problem that the application as a heat insulating material is limited.

Images