The application of thermodynamic perturbation theory to the calculation of excess free energy of small systems: 2. Excess free energy and disjoining pressure in the wetting layer of apolar liquid

摘要

Isotherms of disjoining pressure in the wetting film of apolar liquid on unmodified and modified solid surfaces were studied based on the thermodynamic perturbation theory. Specific calculations were performed for two systems: (1) the wetting film of decane on aluminum surface and (2) the wetting film of decane on aluminum surface modified by pentanol. It was shown that the results of calculation agree with experimental data.