| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 598399 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2006 | 22 Pages |
Abstract
The effect of latex particles on foam and antifoam behaviour is complex. It can give rise to three effects - depletion of surfactant concentration by adsorption loss, increase in viscosity and stratification stabilisation of thin liquid films by the particles. We show that the first effect appears to dominate in the case of the selected systems. Additional effects due to stabilisation of foam and oil-water-air pseudoemulsion films by latex particles are also found. Antifoam behaviour appears to correlate with pseudoemulsion film stability. Any stabilisation of such films by latex particles is shown to be readily eliminated by the presence of hydrophobed silica particles.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
P.R. Garrett, S.P. Wicks, E. Fowles,