6533b839fe1ef96bd12a6677

RESEARCH PRODUCT

The role of organoclay and matrix type in photo-oxidation of polyolefin/clay nanocomposite films

N. Tz. DintchevaLuigi BottaF. P. La Mantia

subject

Materials scienceNanocompositePolymers and PlasticsConcentration effectPolyethyleneCondensed Matter PhysicsPolyolefinLow-density polyethylenechemistry.chemical_compoundSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiMontmorillonitePhoto-oxidation nanocomposites Polyethylene Poly(ethylene-co-vinyl acetate)chemistryMechanics of MaterialsMaterials ChemistryOrganoclayPolymer blendComposite material

description

Abstract In this paper the photo-oxidation behaviour of polyolefin/clay nanocomposite films was studied; in particular, the effect of the amount of organo-modifier and the matrix polarity on the photo-oxidation was investigated. Two different organo-modified clays and compositions of LDPE/EVA blend films were used and the photo-oxidation was followed by mechanical and spectroscopic analyses. The organoclay and matrix type strongly influence the photo-oxidative behaviour of nanocomposite films. The films filled with CL15A show a faster loss of mechanical performance and higher carbonyl formation with respect to the films filled with the CL20A. Additionally, the LDPE based nanocomposite undergoes photo-oxidation more rapidly than the EVA based one.

yearjournalcountryeditionlanguage
2009-04-01Polymer Degradation and Stability
https://doi.org/10.1016/j.polymdegradstab.2008.12.017