A theory for foam growth kinetics in the presence of antifoam emulsion

Abstract

A theoretical model has been developed to predict the rate of foam production when gas is bubbled through an aqueous surfactant solution containing antifoam emulsion droplets. The calculation, using the theory of heterocoagulation kinetics, determines the probability of a gas bubble collecting an emulsion droplet during passage through the liquid. The principal assumption is that a bubble is short-lived if it collects an emulsion droplet with …