Activation Washing off Mechanism of Oil Films from the Solid Surface by Surfactant Aqueous Solutions

The process of oil film washing off from the solid surface by surfactant aqueous solutions of, accompanied by the film rupture into separate areas, is considered. An analytical equation was derived that allows calculation of the activation energy for this process. The relationship of the activation energy with a size of surfactant micelles in aqueous solutions and oil viscosity was revealed. A mechanism for oil films rupture upon contact with aqueous surfactant solutions has been proposed.