Short-time rotational diffusion in monodisperse charge-stabilized colloidal suspensions

M. Watzlawek and G. Nägele

Physica A: Statistical Mechanics and its Applications, 1997, vol. 235, issue 1, 56-74

Abstract: We investigate the combined effects of electrostatic interactions and hydrodynamic interactions (HI) on the short-time rotational self-diffusion coefficient Dsr in charge-stabilized suspensions. We calculate Dsr as a function of volume fraction φ for various effective particle charges and various amounts of added electrolyte. The influence of HI is taken into account by a series expansion of the two-body mobility tensors. At sufficiently small φ this is an excellent approximation due to the strong electrostatic repulsion. For larger φ, we also consider the leading hydrodynamic three-body contribution.

Keywords: Charge-stabilized colloids; Rotational diffusion; Hydrodynamic interaction (search for similar items in EconPapers)
Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:235:y:1997:i:1:p:56-74

DOI: 10.1016/S0378-4371(96)00328-7

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