Abstract
The drainage and stability of thin liquids foam films from aqueous solutions of the nonionic surfactant hexaethyleneglycol
monododecyl ether (C12E6) is studied as a function of surfactant concentration and film size. The thinning rate is
investigated in the range of total surfactant concentrations from 10-5 M to 10-4 M, at electrolyte concentration of 0.025 M.
The value of the drainage coefficient (α) is determined for each film from its “thickness vs. time” dependence. The film
thickness was calculated using microinterferometric method.
Keywords
Foam film, Drainage, Nonionic surfactant, C12E6, Ionic strength.
Citation
V. SIMULESCU, E. MANEV, GHE. ILIA, Drainage and stability of foam films from aqueous solutions of a single nonionic surfactant C12E6, Optoelectronics and Advanced Materials - Rapid Communications, 3, 2, February 2009, pp.155-159 (2009).
Submitted at: Jan. 15, 2009
Accepted at: Feb. 13, 2009