Line tension approaching a first-order wetting transition: Experimental results from contact angle measurements
- 21 February 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 63 (3) , 031601
- https://doi.org/10.1103/physreve.63.031601
Abstract
The line tension values of n-octane and 1-octene on a hexadecyltrichlorosilane coated silicon wafer, are determined by contact angle measurements at temperatures near a first-order wetting transition It is shown experimentally that the line tension changes sign as the temperature increases toward in agreement with a number of theoretical predictions. A simple phenomenological model possessing a repulsive barrier at and a scale factor of provides a quantitative description of the experiments.
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