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Erschienen in:
2011 | OriginalPaper | Buchkapitel
6. Thermodynamics of Adhesion
verfasst von : Prof.Dr. Wulff Possart, Dr. Martin E. R. Shanahan
Erschienen in: Handbook of Adhesion Technology
Verlag: Springer Berlin Heidelberg
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Abstract
Although practical adhesion depends on more than just interfacial bonds, clearly the latter are fundamental: the stronger the links, the higher the adhesion. In many cases, interfacial bonding is of a physical nature, and is closely akin to wetting, with the same types of physical phenomena occurring. These can be treated from a thermodynamic standpoint. Wetting data may be used to estimate the thermodynamic, or Dupré, energy of adhesion, provided certain assumptions are made and suitable models constructed for, in particular, interfacial tensions. Several models have been established with greater or lesser success. The main ones are reviewed here, underlining their essential assumptions.