D. Duncan et al., CORRELATION OF LINE TENSION AND SOLID-LIQUID INTERFACIAL-TENSION FROMTHE MEASUREMENT OF DROP SIZE DEPENDENCE OF CONTACT ANGLES, Journal of colloid and interface science, 169(2), 1995, pp. 256-261
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 gl
ycerol. The line tensions obtained from these measurements are in the
range 1-5 mu J/m. In an attempt to link line tension values to the sur
face properties of solids and liquids, these line tensions, together w
ith those obtained previously, were plotted over the solid-liquid inte
rfacial tension gamma(sl). The result is a reasonably smooth monotonic
curve. This result was discussed in terms of the phase rule for capil
lary systems. (C) 1995 Academic Press, Inc.