Analysis of Action Mechanism of Various Additives in Dense Alumina Suspension by using Colloid Probe AFM

Abstract

The viscosity of dense alumina suspension containing polymer dispersant and binder(PVA) was changed by the addition of plasticizer(PEG). In order to analyze the action mechanism of each additive in dense alumina suspension, surface interaction between alumina spherical particle and substrate in solution with different additive conditions of each polymer was directly measured by using colloid probe AFM. Based on the above results, the relationship between suspension viscosity and surface interaction was discussed.