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On the size dependence of a contact angle

  • Physicochemical Processes at the Interfaces
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Abstract

A small drop on a flat solid surface is considered in this paper. In the framework of a unified approach (Gibbs dividing surface method), expressions for the interfacial tension at the liquid-vapor interface and for the contact angle were found. It is shown that introduction of the size dependence of the interfacial tension at a curved liquid-vapor interface is equivalent to using the concept of line tension on the three-phase solid-liquid-vapor boundary. It is noted that the calculations are in agreement with experimental data obtained using an atomic force microscope.

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Authors and Affiliations

  1. Scientific Research Institute of Applied Mathematics and Automation, Kabardino-Balkar Scientific Centre of the Russian Academy of Sciences, Nalchik, Kabardino-Balkaria, 360000, Russia

    S. S. Rekhviashvili & E. V. Kishtikova

Authors
  1. S. S. Rekhviashvili
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  2. E. V. Kishtikova
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Correspondence to S. S. Rekhviashvili.

Additional information

Original Russian Text © S.S. Rekhviashvili, E.V. Kishtikova, 2012, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2012, Vol. 48, No. 4, pp. 337–340.

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Rekhviashvili, S.S., Kishtikova, E.V. On the size dependence of a contact angle. Prot Met Phys Chem Surf 48, 402–405 (2012). https://doi.org/10.1134/S2070205112040156

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  • DOI: https://doi.org/10.1134/S2070205112040156

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