6533b832fe1ef96bd129a1e5

RESEARCH PRODUCT

Photo-oxidation behaviour of polyethylene/multi-wall carbon nanotube composite films

V. MalatestaN. Tz. DintchevaF. P. La Mantia

subject

Materials scienceNanocompositePolymers and PlasticsComposite numberConcentration effectCarbon nanotubePolyethyleneCondensed Matter Physicslaw.inventionchemistry.chemical_compoundchemistryMechanics of MaterialslawMaterials ChemistryPhotochemical degradationIrradiationShort exposureComposite material

description

Abstract The resistance to accelerated photo-oxidation of polyethylene/multi-walled carbon nanotubes (MW-CNTs) composite films was compared with the photo-oxidation behaviour of pristine polyethylene film. The polyethylene/MW-CNTs films containing different CNTs loading were subjected to accelerated UV-B exposure. At short exposure time, i.e. under 200 h, the rates of carbonyl formation are very similar to that observed for pristine polyethylene film but at longer irradiation times the carbonyl formation increases for lower MW-CNTs contents (0.1, 0.2 and 0.5% wt./wt.), and decreases for higher MW-CNTs contents (1 and 2% wt./wt.). By adding a UV-stabilizer to the films their photo-oxidation rates are drastically decreased also at low MW-CNTs concentration. Addition of a metal deactivator (MD) produced no observable effect.

yearjournalcountryeditionlanguage
2009-02-01Polymer Degradation and Stability
https://doi.org/10.1016/j.polymdegradstab.2008.11.012