Thin Liquid Film – Pressure Balance (TLF-PB)
Thin liquid film technique is conveniently used in model studies of emulsion and foam stability. This updated version of TLF-PB is modified for application to water-in-oil emulsion films. Surface forces that govern film stability (disjoining pressure vs. thickness isotherms) and equilibrium thicknesses can be measured for stable films. Kinetics of film thinning, film lifetimes, and critical thicknesses are measured for rupturing films. Additionally, video registration and image analysis are used for characterization of film behaviour.