Rheological Characterizations of Dispersions of Clay Particles in Viscoelastic Polymer Solutions

Abstract: In this work, we consider model fluids which are dispersions of clay particles in aqueous solutions of carboxymethyl cellulose. Their rheological properties are measured in both steady and oscillatory shear flows. We present the experimental results obtained for different polymer concentrations and for three different molecular weights of the polymer. The clay is a bentonite sample and the particle concentration is fixed to a value of 5 %. The mechanical properties of these materials is the result of a competition between different mechanisms: association-dissociation of aggregates of particles, adsorption of polymer on the particles and desorption of solvent molecules from the particles, bridging of the particles by long polymer chains.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Rheological Characterizations of Dispersions of Clay Particles in Viscoelastic Polymer Solutions ; volume:20 ; number:1 ; year:2010 ; extent:9
Applied rheology ; 20, Heft 1 (2010) (gesamt 9)

Urheber
Azouz, Kaouther Ben
Dupuis, Dominique
Bekkour, Karim

DOI
10.3933/applrheol-20-13041
URN
urn:nbn:de:101:1-2405241700509.733872569046
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
22.04.2025, 13:54 MESZ

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Beteiligte

  • Azouz, Kaouther Ben
  • Dupuis, Dominique
  • Bekkour, Karim

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