Correlation of Line Tension and Solid-Liquid Interfacial Tension from the Measurement of Drop Size Dependence of Contact Angles

Autor: D. Duncan, J. Gaydos, A.W. Neumann, D. Li
Rok vydání: 1995
Předmět:
Zdroj: Journal of Colloid and Interface Science. 169:256-261
ISSN: 0021-9797
DOI: 10.1006/jcis.1995.1032
Popis: Drop-size-dependent contact angle measurements were performed on mica surfaces coated with a fluoro compound (FC 721) and the following five liquids: decane, dodecane, methyl salicylate, ethylene glycol, and glycerol. The line tensions obtained from these measurements are in the range 1-5 μJ/m. In an attempt to link line tension values to the surface properties of solids and liquids, these line tensions, together with those obtained previously, were plotted over the solid-liquid interfacial tension γsl. The result is a reasonably smooth monotonic curve. This result was discussed in terms of the phase rule for capillary systems.
Databáze: OpenAIRE