Disjoining Pressure : The Force Acting Against The Thinning of Liquid Film

Abstract

The studies on the "Disjoining pressure" are reviewed as one of the widely accepted major factors which stabilizes the liquid film from rupture by resisting against the thinning of the in- tervening liquid phase separating two other phases. Various components of the "disjoining pressure" , namely, those repulsive forces originated from the overlapping of two electrical dif- fuse double layers, the van der Waals interaction with negative Hamaker constant, the steric effect of adsorbed nonionic molecules, and the elastic effect of anchored liquid crystalline mole- cules at the interfaces, are introduced together with the corresponding methods of measurement.