The Relation of the Attractive Forces at Interfaces to Wetting, Spreading, Adsorption, and Long-Range Attractive Forces

  • Frederick M. Fowkes


Equations based on a simple model of surfaces and interfaces have been found useful for relating quantitatively several previously unrelated fields of surface chemistry [10–13], These equations introduce a new term, the London dispersion force contribution to the surface free energy ( γ d ), and make use of this term for the accurate calculations of surface tension, interfacial tension, contact angles, heats and free energies of immersion, heats and free energies of adsorption, and the long-range van der Waals attractive forces. The accuracy of predictions of values verifiable by experiment leads one to expect that predictions of unverifiable quantities, such as the magnitude of attractive forces at solid-solid interfaces, are to be trusted.


Surface Tension Contact Angle Interfacial Tension Surface Free Energy Attractive Force 
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Copyright information

© Plenum Press 1966

Authors and Affiliations

  • Frederick M. Fowkes
    • 1
  1. 1.Sprague Electric CompanyNorth AdamsUSA

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