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.
|Publication status||Published - 1 Dec 1997|
|Event||1997 International Symposium on Multiphase Fluid, Non-Newtonian Fluid and Physico-Chemical Fluid Flows, ISMNP'97 - Beijing, China|
Duration: 7 Oct 1997 → 10 Oct 1997
|Conference||1997 International Symposium on Multiphase Fluid, Non-Newtonian Fluid and Physico-Chemical Fluid Flows, ISMNP'97|
|Period||7/10/97 → 10/10/97|