Heat-insulation film for high temperature molding, vacuum thermal insulator using same and process for fabricating vacuum thermal insulator
A technology of vacuum thermal insulation material and thermal insulation film, which is applied in the field of vacuum thermal insulation material and preparation of vacuum thermal insulation material, can solve the problems of reduced vacuum degree, deformation of thermal insulation film, defective products, etc.
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Embodiment 1
[0055] Example 1 Preparation of heat insulating film
[0056] Polyethylene naphthalate (SKC, The back of the first film layer of NX10) is coated with an epoxy resin hot melt adhesive to form a 5 μm thick first adhesive layer. The first barrier layer made of aluminum foil was laminated with a thickness of 15 μm on the bottom surface of the first film layer using a laminator, and then a 20 μm thick modified epoxy resin hot-melt adhesive was coated on the first barrier layer. bottom of the layer.
Embodiment 2
[0057] Example 2 Preparation of heat insulating film
[0058] The procedure of Example 1 above was repeated except that a 20 μm-thick glass fiber was further laminated between the first film layer and the first adhesive layer, thereby preparing a heat insulating film.
Embodiment 3
[0059] Example 3 Preparation of heat insulating film
[0060] In addition to coating epoxy resin hot-melt adhesive between the first barrier layer and the hot-melt adhesive layer, thereby forming a second adhesive layer with a thickness of 15 μm, and further forming polyethylene naphthalate molded with a thickness of 100 μm Glycol esters (SKC, Except for the second thin film layer of NX10), the steps of Example 1 were repeated to prepare a thermal insulation film.
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