1998 Volume 106 Issue 1239 Pages 1110-1113
The fluidity of CaCO3 suspension with various types of polymer containing graft chain of polyethylene oxide have been investigated. With increasing the dosage of polymer, the fluidity of suspension was increased. This is because the amount of retention water in clusters of CaCO3 suspension is reduced by the steric hindrance effect of adsorbed polymer. The smaller the amount of retention water, the larger the fluidity of suspension. Over the amount of saturated adsorption of polymer, the fluidity of CaCO3 suspension is increased gradually with the dosage of polymer. The viscosity of suspension with polymer having low molecular weight of graft chains is lower than that of suspension with high molecular weight of graft chain, because the amount of retention water in clusters of CaCO3 suspension with polymer having shorter graft chains are smaller than that of CaCO3 suspension with polymer having longer graft chains.
