Theory of Thermodynamic Stresses in Colloidal Dispersions at the Glass Transition - Condensed Matter > Soft Condensed MatterReport as inadecuate




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Abstract: We discuss the nonlinear rheology of dense colloidal dispersions at the glasstransition. A first principles approach starting with interacting Brownianparticles in given arbitrary homogeneous incompressible flow neglectinghydrodynamic interactions is sketched. It e.g. explains steady state flowcurves for finite shear rates measured in dense suspensions of thermosensitivecore-shell particles consisting of a polystyrene core and a crosslinkedpolyN-isopropylacrylamidePNIPAM shell. The exponents of simple andgeneralized Herschel Bulkley laws are computed for hard spheres.



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

Source: https://arxiv.org/







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