Surface Energy of Solids

Authors

  • J. Leitner Department of Solid State Engineering, University of Chemistry and Technology Prague, Prague
  • P. Slepička Department of Solid State Engineering, University of Chemistry and Technology Prague, Prague
  • D. Sedmidubský Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Prague

Keywords:

surface energy, solution calorimetry, DSC, contact angle measurement, Owens-Wendt method, broken bond model, ab-initio calculation

Abstract

Surface and interfacial energies are crucial for most heterogeneous processes. They affect wettability and adhesion, adsorption, dissolution, nucleation, phase transformations and chemical reactions. The introduction of this work summarizes basic thermodynamic concepts about solid surfaces and interfaces between solid and liquid phases. In addition, two main methods for experimental determination of surface energies are introduced, namely calorimetry and contact angle measurement. Owens-Wendt method for the determination of surface energy from contact angles is discussed in detail and the determination of surface energy of polyethylene terephthalate is shown as an example. At the same time, the reasons why this method is not applicable to high energy surfaces of metals and oxides are presented. In the final part of the review, the possibilities of semiempirical and theoretical (ab-initio) methods that allow the calculation of surface energy are outlined.

Published

2021-01-15

How to Cite

Leitner, J., Slepička, P., & Sedmidubský, D. (2021). Surface Energy of Solids. Chemické Listy, 115(1), 13–19. Retrieved from http://blog.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/3767

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