Search results for "PLASTIC FILMS"

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Structure and thermal properties of a chitosan coated polyethylene bilayer film

2012

The thermal and the structural properties of chitosan coated polyethylene (PE) films were studied. The coating process did not significantly influence the thermal stability and the PE surface structure and/or composition of the polyolefin. Dehydration temperature of chitosan films reflected the strength of water/acetic acid/chitosan chains interactions. Glycerol, used as a plasticizer, formed new hydrophilic centres in the film matrix. Moreover it was better integrated in the CSEGLY than in CSAGLY network. Besides, the addition of a plasticizer in the chitosan films decreased the film degradation temperature. There were two main steps for the PE chitosan coated films degradation. The first …

Materials sciencePolymers and Plastics[SDV]Life Sciences [q-bio]BIOPOLYMERmacromolecular substances02 engineering and technologyengineering.material010402 general chemistryBLENDS01 natural sciencesChitosanchemistry.chemical_compoundAcetic acidCoatingPLASTIC FILMSPolymer chemistryMolecular interactionsMaterials ChemistryOXYGEN BARRIER[SDV.BV]Life Sciences [q-bio]/Vegetal BiologyThermal stabilityPERMEABILITYTEMPERATUREMicrostructureEDIBLE FILMSBilayertechnology industry and agriculturePlasticizerThermal stabilityDEGRADATIONPolyethyleneChitosan coatingequipment and supplies021001 nanoscience & nanotechnologyCondensed Matter Physicspolyethylene; chitosan coating; thermal stability; microstructure; molecular interactions0104 chemical sciencesPolyolefincarbohydrates (lipids)chemistryChemical engineeringPolyethyleneMechanics of MaterialsPHYSICOCHEMICAL PROPERTIES[SDE]Environmental Sciencesengineering0210 nano-technologyBEHAVIORPolymer Degradation and Stability
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