QENS investigation of filled rubbers

A. Triolo, F. Lo Celso, F. Negroni, V. Arrighi, H. Qian, R. E. Lechner, A. Desmedt, J. Pieper, B. Frick, R. Triolo

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)S490-S492
JournalApplied Physics A: Materials Science and Processing
Issue numberSUPPL.I
Publication statusPublished - Dec 2002


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