Composite heat-insulation packaging material
A packaging material and composite technology, applied in the field of packaging materials, can solve problems such as necking, cracks, and ineffective heat preservation
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[0015] Such as figure 1 with figure 2 As shown, a composite foam-shaped thermal insulation packaging material of the present invention sequentially includes a flame-retardant PE film 5, a pressure-resistant layer 6, a plastic thermal insulation composite layer 7, and a pressure-resistant layer 8. The polypropylene is polypropylene containing a ceramic catalyst. Composite foam insulation packaging material thickness 2.8-3.5mm, such as figure 2 The uppermost layer is the flame-retardant PE layer 1, followed by the pressure-resistant layer 2, then the plastic thermal insulation composite layer 3, and finally the pressure-resistant layer 4, between the pressure-resistant layer and the plastic thermal insulation composite layer and the pressure-resistant layer and the flame-retardant PE film Both are hydraulically pasted by adhesive, and the combination is firm. During the manufacturing process, the hydraulically plastic thermal insulation composite material will not cause seve...
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