Regensburg 2007 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 8: POSTER: Polymer Physics
CPP 8.25: Poster
Montag, 26. März 2007, 16:00–18:00, Poster B
Temperature Dependence of the Payne Effect — •Andreas Michael Schmidt1, Antje Bergmann2, Gerald Johannes Schneider1, and Dietmar Göritz1 — 1Institut für Physik, Universität Regensburg, 93040 Regensburg — 2Institut für Theoretische Festkörperphysik, Abteilung für Didaktik der Physik, Universität Karlsruhe, 76128 Karlsruhe
The “Payne-Effect” is an interesting phenomenon which can be observed in filled elastomers. It is characterised by a decline in the dynamical shear modulus with increasing deformation.
Instead of performing a conventional shear experiment we measured the shear force using a needle that could penetrate the sample periodically.
With our experimental setup we are able to vary the penetration depth, the deformation amplitude and the frequency of the needle oscillation.
We investigated SBR systems filled with VN3 silica, in which the filler content was varied. Furthermore, we performed annealing treatments on the samples and studied the filler rearrangment in the rubber matrix.