Stability of nonaqueous kaolin and zinc oxide dispersions containing an acidic stabilizer

The dependence of the stability of nonaqueous kaolin and zinc oxide suspens ions containing an acidic stabilizer on the acid-base properties of its com ponents was found. It was shown that when steric stabilization prevails, th ere is a direct correlation between the stability of low-concentrated syste ms and acid-base interaction at the particle-polymer and particle-solvent i nterfaces. The influence of acid-base properties of the components on dispe rsion stability was less pronounced in the concentrated dispersions.