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B. D. Summ, O. A. Soboleva
Static and Kinetic Regular Trends in Preferential Wetting
Abstract
Review of experimental
studies of statics and kinetics of preferential wetting in three-phase systems:
1) hydrophilic and hydrophobic solid surfaces; 2) polar liquids (water,
surfactant solutions, glycerol); 3) non-polar liquids (n-alkanes from n-octane
up to n-pentadecane, paraffine oil). Three important features of preferential
wetting are established. 1) Kinetics is limited usually by separation
(“deadhesion”) of liquid precursor film from solid surface. 2) Stationary
contact angles are realized very slowly during a long period of time. 3)
Adsorption layers of surfactant on liquid 1 /liquid 2 interfaces have definite
rheological properties which effect strongly on contact angles in preferential
conditions.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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