Degradable film and preparation method thereof
A technology for degrading films and films, applied in chemical instruments and methods, sustainable manufacturing/processing, climate sustainability, etc. The effect of low temperature heat sealing
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Embodiment 1
[0042] The degradable film of this embodiment includes an inner layer and an outer layer, wherein the inner layer comprises the following components in parts by weight: 80 parts of polylactic acid-glycolic acid copolymer, 65 parts of polycaprolactone, methacrylic acid shrinkage 4 parts of glyceride grafted polycaprolactone, 10 parts of polyhydroxyalkanoate, 2 parts of polylactic acid-caprolactone copolymer, 0.2 part of flake graphite;
[0043] The outer layer includes the following components in parts by weight: 100 parts of polylactic acid-glycolic acid copolymer, 60 parts of polycaprolactone, 20 parts of diacetyl epoxy vegetable glyceryl oleate, glycidyl methacrylate graft 10 parts of polylactic acid-glycolic acid copolymer, 1.8 parts of nano calcium carbonate, 1.2 parts of sodium alginate, 4 parts of slip agent, 12 parts of antistatic agent, 0.4 part of ultraviolet absorber;
[0044]The degradable film of this embodiment also includes a core layer, wherein the core layer in...
Embodiment 2
[0057] The degradable film of this embodiment includes an inner layer and an outer layer, wherein the inner layer comprises the following components in parts by weight: 60 parts of polylactic acid-glycolic acid copolymer, 20 parts of polycaprolactone, methacrylic acid shrinkage 15 parts of glyceride grafted polycaprolactone, 2 parts of poly-β-hydroxybutyric acid, 2 parts of polymethylethylene carbonate, 0.5 part of talcum powder, 1 part of diatomaceous earth;
[0058] Wherein the outer layer comprises the following components in parts by weight: 70 parts of polylactic acid-glycolic acid copolymer, 50 parts of polycaprolactone, 12 parts of diacetyl epoxy vegetable glyceryl oleate, glycidyl methacrylate 18 parts of grafted polylactic acid-glycolic acid copolymer, 0.3 parts of chitosan, 1.5 parts of montmorillonite, 6 parts of functional additives;
[0059] The degradable of this embodiment also includes a core layer, the core layer includes the following components in parts by w...
Embodiment 3
[0072] The degradable film of this embodiment includes an inner layer and an outer layer, wherein the inner layer comprises the following components in parts by weight: 70 parts of polylactic acid-glycolic acid copolymer, 45 parts of polycaprolactone, glycidyl methacrylate 2.5 parts of ester-grafted polycaprolactone, 15 parts of polybutylene adipate terephthalate, 4 parts of polylactic acid-caprolactone copolymer, and 4 parts of open-ended masterbatch;
[0073] Wherein the outer layer comprises the following components in parts by weight: 60 parts of polylactic acid-glycolic acid copolymer, 20 parts of polycaprolactone, 8 parts of diacetyl epoxy vegetable glyceryl oleate, glycidyl methacrylate 2 parts of dendritic polylactic acid-glycolic acid copolymer, 7.5 parts of mica powder, 3 parts of cellulose nanocrystals, and 4 parts of functional additives.
[0074] This embodiment provides a method for preparing the above-mentioned degradable poly film. The preparation steps are as...
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