Charged patch interactions in colloidal dispersions

Research output: Contribution to conferenceConference presentation/ephemera

Abstract

Charged patch attraction arising from adsorbed poly[sodium 4-styrene sulphonate] or NaPSS increases the yield stress of concentrated ZrO2 dispersions. This attraction decreases with increasing ionic strength and increasing misalignment of the patches. Its contribution to the yield stress at the point of zero charge is τy(cp) = 905c where C is the polyelectrolyte concentration in g/100 g ZrO2. Compared with polyacrylic acid, NaPSS shifts the pH of zero zeta potential to a greater degree.

Original languageEnglish
Publication statusPublished - 1 Dec 1997
Externally publishedYes
Event1997 International Symposium on Multiphase Fluid, Non-Newtonian Fluid and Physico-Chemical Fluid Flows, ISMNP'97 - Beijing, China
Duration: 7 Oct 199710 Oct 1997

Conference

Conference1997 International Symposium on Multiphase Fluid, Non-Newtonian Fluid and Physico-Chemical Fluid Flows, ISMNP'97
CityBeijing, China
Period7/10/9710/10/97

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Leong, Y. K. (1997). Charged patch interactions in colloidal dispersions. Paper presented at 1997 International Symposium on Multiphase Fluid, Non-Newtonian Fluid and Physico-Chemical Fluid Flows, ISMNP'97, Beijing, China, .