6533b85ffe1ef96bd12c1e1e

RESEARCH PRODUCT

Influence of the e-beam irradiation and photo-oxidation aging on the structure and properties of LDPE-OMMT nanocomposite films

Rossella ArrigoN. Tz. DintchevaG. PrzybytniakGiuseppe SpadaroSabina Alessi

subject

RadiationMaterials scienceNanocompositeLDPE-OMMT nanocomposite film e-beam irradiation Photo-oxidation ageing Mechanical properties Carbonyl index Molecular modificationPolyethylenechemistry.chemical_compoundLow-density polyethyleneSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiMontmorillonitechemistryPolymer chemistryUltimate tensile strengthSettore CHIM/07 - Fondamenti Chimici Delle TecnologieIrradiationComposite materialE beam irradiationSolubility

description

Abstract In this paper two systems, polyethylene (LDPE) and polyethylene/commercial organo-modified montmorillonite (LDPE/OMMT) nanocomposite, were subjected to e-beam irradiation at different doses and both the molecular modifications and mechanical properties have been investigated through solubility, FT-IR, calorimetric and tensile tests. Moreover, in some of the irradiated systems photo-oxidation aging was performed and its effects were studied. The results show an enhancement with irradiation of the positive effect of the nano-filler loading, related to the increase of the mechanical properties, due to the increase of the nano-filler polymer interaction. Nevertheless calorimetric and FT-IR data indicate that the well known reduction of LDPE/OMMT nanocomposite resistance to photo-oxidation ageing, with respect to LDPE, is amplified by ionizing radiation.

yearjournalcountryeditionlanguage
2012-04-01Radiation Physics and Chemistry
https://doi.org/10.1016/j.radphyschem.2011.12.018