Abstract
The effect of hydrophilic glass particles in a cetyltrimethylammonium bromide (CTAB) solution on the drainage and stability of foam and single vertical free liquid films (0.02 M CTAB) in a glass frame was investigated. Large particles (diameter approximately between 1 and 10 μm), being present in the colored films, retard both foam and film drainage and increase film stability. This is ascribed to dispersion of surface waves by particles extending through the film surfaces. Smaller particles (<1 μm) lack this property: they shorten film lifetime in foams, although they have no influence on foam drainage.
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