6533b823fe1ef96bd127f43b
RESEARCH PRODUCT
QENS investigation of filled rubbers
F. Lo CelsoF. NegroniBernhard FrickH. QianValeria ArrighiAlessandro TrioloRoberto TrioloJörg PieperR.e. LechnerArnaud Desmedtsubject
chemistry.chemical_classificationMaterials scienceGeneral ChemistryDynamic mechanical analysisPolymerengineering.materialElastomerNatural rubberchemistryvisual_artFiller (materials)Quasielastic neutron scatteringvisual_art.visual_art_mediumengineeringRelaxation (physics)General Materials ScienceComposite materialThermal analysisdescription
The polymer segmental dynamics is investigated in a series of silica-filled rubbers. The presence of inert fillers in polymers greatly affects the mechanical and physical performance of the final materials. For example, silica has been proposed as a reinforcing agent of elastomers in tire production. Results from quasielastic neutron scattering and Dynamic Mechanical Thermal Analysis (DMTA) measurements are presented on styrene–ran-butadiene rubber filled with silica. A clear indication is obtained of the existence of a bimodal dynamics, which can be rationalized in terms of the relaxation of bulk rubber and the much slower relaxation of the rubber adsorbed on the filler surface.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-12-01 | Applied Physics A: Materials Science & Processing |