6533b850fe1ef96bd12a8387

RESEARCH PRODUCT

Re-gradation of Photo-oxidized Post-consumer Greenhouse Films

Nadka Tzankova DintchevaFrancesco Paolo La Mantia

subject

chemistry.chemical_classificationMaterials scienceFlow curvePolymers and PlasticsOrganic ChemistryGreenhousePolymerPolyethylenechemistry.chemical_compoundChemical engineeringchemistryPolymer chemistryMaterials ChemistryGradationPolymer blend

description

The degradation undergone by the polymers during their use and because of the thermo-mechanical degradation undergone during the reprocessing operations provokes, among other effects, the decrease of the molecular weight. The change of the molecular architecture is responsable for the deterioration of all the properties. In order to restore the properties of post-consumer recycled plastics, some rebuilding of the molecular structure is necessary. In this work, photo-oxidized films for greenhouses were reprocessed in presence of additives able to react with the polyethylene in order to form branching and cross-linking, improving the properties of these post-consumer plastic.

http://hdl.handle.net/10447/33479