Theory of thermodynamic stresses in colloidal dispersions at the glass transition

D. Hajnal, O. Henrich, J. J. Crassous, M. Siebenbuerger, M. Drechsler, M. Ballauff, M. Fuchs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We discuss the nonlinear rheology of dense colloidal dispersions at the glass transition. A first principles approach starting with interacting Brownian particles in given arbitrary homogeneous (incompressible) flow neglecting hydrodynamic interactions is sketched. It e.g. explains steady state flow curves for finite shear rates measured in dense suspensions of thermosensitive core-shell particles consisting of a polystyrene core and a crosslinked poly(N-isopropylacrylamide)(PNIPAM) shell. The exponents of simple and generalized Herschel Bulkley laws are computed for hard spheres.

Original languageEnglish
Title of host publicationXVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2
EditorsA Co, LG Leal, RH Colby, AJ Giacomin
Place of PublicationMELVILLE
PublisherAmerican Institute of Physics
Pages674-676
Number of pages3
ISBN (Print)978-0-7354-0549-3
DOIs
Publication statusPublished - 2008
Event15th International Congress on Rheology/80th Annual Meeting of the Society-of-Rheology - Monterey
Duration: 3 Aug 20088 Aug 2008

Conference

Conference15th International Congress on Rheology/80th Annual Meeting of the Society-of-Rheology
CityMonterey
Period3/08/088/08/08

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