Time-variation of particle size distributions during coalescence, dispersion and ultrasonic emulsification

Abstract

The note briefly surveys the recent studies on the time variation of particle sizes during such processes as coalescence, heterocoagulation, electrification of aerosols, breakage of particles and emulsification. The general equations for the change of size distributions during coalescence are solved in some cases. A simple model is given for the variation of the mean size when both dispersion and coalescence are present. The results are compared with the experimental data and the stability factor, the limiting size of particles in grinding and emulsification, etc. are quantitatively discussed.