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Double layer PET structural heat-insulation film

A heat insulation film, double-layer technology, applied in the field of double-layer PET structure heat insulation film, can solve the problems of light pollution, poor heat insulation effect, etc., and achieve the effect of good heat insulation performance and low visible light reflectance

Inactive Publication Date: 2012-11-14
SOUTHWESTERN INST OF PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The primary color film and the dyed film are absorbing, especially the visible light part, so the heat insulation effect is relatively poor; the sputtering film and the evaporation film are reflective, especially for the infrared part, but while reflecting infrared rays, they may also have visible light More reflection, if a large amount of this reflective insulation film is used, it will cause light pollution to a certain extent

Method used

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  • Double layer PET structural heat-insulation film

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Effect test

Embodiment 1

[0022] A double-layer PET structure heat insulation film, its composition and structure are: 3μm thick hardened coating 1, 30μm thick transparent and colorless first PET layer 2, 13nm thick metal titanium coating layer A3, 3μm thick second layer An adhesive layer 4 (using pressure sensitive adhesive), a 20 μm black transparent second PET layer 6 , a 5 μm thick second pressure sensitive adhesive layer 7 and a 20 μm thick release layer 8 .

Embodiment 2

[0024] A double-layer PET structure heat insulation film, its composition and structure are: 5μm thick hardened coating 1, 20μm thick transparent and colorless first PET layer 2, 10nm thick metal titanium coating layer A3, 4μm thick second layer An adhesive layer 4 (composite adhesive), 5nm thick metal titanium coating layer B5, 60 μm black transparent second PET layer 6, 4 μm thick second pressure sensitive adhesive layer 7 and 25 μm thick release layer 8.

Embodiment 3

[0026] A double-layer PET structure heat insulation film, its composition and structure are: 3μm thick hard coating 1, 50μm thick transparent and colorless first PET layer 2, 33nmTiO 2 +12nmAg+2nmTi+40nmTiO 2 Thick coating layer A3, 3μm thick first adhesive layer 4 (using pressure-sensitive adhesive), 33nmTiO 2 +12nmAg+2nmTi+33nmTiO 2 Thick coating layer B5, 50 μm colorless transparent PET layer 6, 5 μm thick second pressure-sensitive adhesive layer 7 and 15 μm thick release layer 8.

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Abstract

The invention relates to the technical field of heat-insulation films, and particularly relates to a double layer PET structural heat-insulation film. The heat-insulation film has a layered composite structure, and comprises, from upper to down successively, a hardening coating having a protective effect, a colorless and transparent first PET layer, a coating layer A which is disposed on the first PET layer and has a heat-insulation effect, a first adhesive layer, a transparent second PET layer, a second pressure-sensitive adhesive layer and an anti-sticking layer, wherein the second PET layer is colored or colorless transparent PET; a coating layer B is disposed between the second PET layer and the first adhesive layer; or the coating layer B can be replaced by adding a coloring agent in the first adhesive layer when the second PET layer is the colorless transparent PET. Compared with a single layer heat-insulation film, the double layer PET structural heat-insulation film has lower visible light reflectivity and better heat-insulation performance.

Description

technical field [0001] The invention belongs to the technical field of heat-insulating films, and in particular relates to a double-layer PET structure heat-insulating film. Background technique [0002] Glass heat insulation usually adopts methods such as glass coating or filming, and heat insulation film is widely used because of its excellent comprehensive performance. At present, heat insulation films produced abroad occupy most of the market, and the quality of the films varies, among which the two major systems of primary color / dyed film and sputtering / evaporation coating are representative. The primary color film and the dyed film are absorbing, especially the visible light part, so the heat insulation effect is relatively poor; the sputtering film and the evaporation film are reflective, especially for the infrared part, but while reflecting infrared rays, they may also have visible light More reflection, if a large amount of this reflective insulation film is used,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/40B32B27/20B32B15/095
Inventor 王军生童洪辉陈庆川刘维赵嘉学
Owner SOUTHWESTERN INST OF PHYSICS
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