Obtaining surface tension from contact angle data by the individual representation approach |
| |
Authors: | István Pászli Ildikó Mohammed-Ziegler Zoltán Hórvölgyi |
| |
Affiliation: | 1.Department of Physical Chemistry,Loránd E?tv?s University,Budapest,Hungary;2.Csolnok,Hungary;3.Department of Physical Chemistry,Budapest University of Technology and Economics,Budapest,Hungary;4.Gedeon Richter Plc., Quality Control Department,Dorog,Hungary |
| |
Abstract: | Young equation is the fundamental equation of wetting theory in which the connection among the surface tensions, (gamma _{{varphi psi }} ) and the contact angle, θ L, are given. The surface tension of solid surfaces, however, cannot be obtained directly from the Young equation. In this paper, the application of the individual representation theory is demonstrated for the determination of surface tensions of solids (or any phase pair) using experimentally obtained contact angle data. According to this approach, the state of the interfacial layers depends upon, by definition, the properties of the bulk phases in every heterogeneous system, and thus, it complements the traditional capillary theory. |
| |
Keywords: | Contact angle Substantial parameters Surface tension Critical surface tension |
本文献已被 SpringerLink 等数据库收录! |
|