Drainage of foam films stabilized by nonionic, ionic surfactants and their mixtures

- Drainage coefficient (α) of foam films from mixed surfactant solutions is determined.
- Mixtures of C12G2 with C12E6, or C12E0 and C12TAB were studied.
- The influence of the mixture composition on α is tested.
- α for films from mixture 1:1 depends on the surfactant prevailing in adsorption layer.
- α of films from 50:1 mixtures is similar to those of C12G2 films.