Estimation of Gelatin Layer Thickness on Polystyrene Particles by a Viscometric Study
A viscometric method has been used to determine the layer thickness of gelatin adsorbed on polystyrene (PS) particles. The layer thickness was found to be 28 nm regardless of the diameter of PS particles. The value of Einstein's coefficient, alpha0 for the relative viscosity-volume fraction relation was estimated to be 2.63. Since the PS latex particles were spherical, the value of alpha0 indicates that even at high shear rates, some aggregation still occurred in the dispersion. Copyright 1997 Academic Press. Copyright 1997Academic Press
Ngothai
Y
Rheology and Materials Processing Centre, Royal Melbourne Institute of Technology, Melbourne, Victoria, Australia
Bhattacharya
SN
Coopes
IH