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Linear Viscoelastic Properties of Suspensions of Rigid Hairy Particles in a Polymeric Matrix
Author(s) -
Dagréou Sylvie,
Kasseh Abdeslam,
Allal Ahmed,
Marin Gérard,
AïtKadi Abdellatif
Publication year - 2002
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450800614
Subject(s) - viscoelasticity , materials science , polystyrene , polymer , relaxation (psychology) , matrix (chemical analysis) , work (physics) , percolation (cognitive psychology) , composite material , thermodynamics , physics , psychology , social psychology , neuroscience , biology
The aim of this work is to use a recently developed statistical model of dispersions with non‐hydrodynamic interactions (Dagréou et al., 2002) to describe the linear viscoelastic properties of suspensions of rigid hairy particles in a polymeric matrix. We first present numerical simulations of our model applied to this system; we demonstrate that taking physical interactions into account allows one to predict the complex relaxation behaviour of filled polymers. We then compare the statistical model to experimental results on suspensions of grafted silica particles in a polystyrene matrix and show that they are in reasonable agreement up to volume fractions close to percolation.