Mass Transfer Problems for Surfactants

Equations and a condition on the surface. Nonsteady-state distribution of surfactants in the volume V and on the surface S is described by the equation of convective diffusion in the bulk and on the surface, respectively [250]  

Kinetics equation of the reversible adsorption. The flux j of surfactants from the bulk to the surface is given by the kinetic equation 

Kinetic coefficients. The kinetic adsorption and desorption coefficients can be estimated [82, 219, 412] if the form of the potential (Z) of interaction between a particle (a surfactant molecule) and the solution surface is known here Z is the coordinate measured from the surface into the bulk of liquid. If the function f (Z) has the form of a potential barrier with a potential well, then the saddle-point method [261] implies 

---