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Rheologica Acta
Erschienen in: Rheologica Acta 8/2007

01.10.2007 | Original Contribution

Stress relaxation of large amplitudes and long timescales in soft thermoplastic and filled elastomers

verfasst von: Didier Long, Paul Sotta

Erschienen in: Rheologica Acta | Ausgabe 8/2007

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Abstract

We propose a model for describing mesoscale relaxation mechanisms in soft thermoplastic elastomers and also in the high-temperature regime of filled rubbers. The model consists of hard spheres embedded in an elastic matrix. It is solved by dissipative particle dynamics. We study the response of the model to deformations of various amplitudes. We show that it displays slow relaxation processes of large amplitudes that are related to irreversible reorganizations at a mesoscopic scale. We characterize these reorganizations as buckling of instabilities that change the local environment of the hard inclusions.
Vorheriger Artikel Nonlinear viscoelastic characterization of molten thermoplastic vulcanizates (TPV) through large amplitude harmonic experiments
Nächster Artikel Effect of flow history on the structure of a non-polar polymer/clay nanocomposite model system

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Metadaten
Titel
Stress relaxation of large amplitudes and long timescales in soft thermoplastic and filled elastomers
verfasst von
Didier Long
Paul Sotta
Publikationsdatum
01.10.2007
Verlag
Springer-Verlag
Erschienen in
Rheologica Acta / Ausgabe 8/2007
Print ISSN: 0035-4511
Elektronische ISSN: 1435-1528
DOI
https://doi.org/10.1007/s00397-007-0187-6

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