6533b830fe1ef96bd12971ba

RESEARCH PRODUCT

Photo-oxidation of polypropylene/graphene nanoplatelets composites

Luigi BottaMaria Chiara MistrettaA.d. VinciManuela CerauloF. P. La Mantia

subject

Materials sciencePolymers and PlasticsPolymer nanocompositeNanoparticle02 engineering and technology010402 general chemistry01 natural scienceslaw.inventionchemistry.chemical_compoundExfoliated graphite nano-plateletslawMaterials ChemistryGraphene nanoplatelets (GnP)Photo-oxidationComposite materialPolypropyleneNanocompositeNanocompositeGraphene021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialichemistryMechanics of MaterialsAbsorption (chemistry)Polypropylene0210 nano-technology

description

Abstract The photo-oxidation behaviour of polymer nanocomposites depends not only on the photo-oxidation behaviour of the matrix, but also on the chemical composition, on the physical properties of the nanoparticles and on the possible interactions between the two phases. In the case of nanocomposites with carbonaceous particles, the main effect is a photo-stabilization due to the absorption of the UV energy and the radical scavenging action. In this work we investigated the effect of the presence of graphene nanoplatelets on the photo-oxidation behaviour of the polypropylene. The presence of the graphene nanoplatelets improves the photo-resistance of the polypropylene and this effect increases with the graphene content. This behaviour has been correlated with the exposed surface of the graphene and not to the dimensions of the graphene nanoplatelets.

yearjournalcountryeditionlanguage
2019-02-01Polymer Degradation and Stability
https://doi.org/10.1016/j.polymdegradstab.2018.12.003