Equilibrium thin liquid films

Author: Rusanov, A.

Source: Colloid Journal, Volume 69, Number 1, February 2007 , pp. 39-49(11)

Publisher: MAIK Nauka/Interperiodica

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Abstract:

The latest results are reviewed and a number of new concepts of the thermodynamics of thin films are formulated. Current definitions of disjoining pressure and their applications for introducing disjoining pressure into thermodynamics of phase equilibria, as well as the new thermodynamic definition of the thickness of thin film, are considered. New approaches to the rigorous definition of disjoining pressure in curved films and films with nonuniform thickness, including transition zones of wetting films, are analyzed. The modulus of Gibbs' elasticity is derived for the case of a thin film. The role of the elasticity of this type in thin films and its correlation with traditional transverse (Derjaguin) elasticity related to the disjoining pressure are explained.

Document Type: Research article

DOI: http://dx.doi.org/10.1134/S1061933X07010061

Publication date: 2007-02-01