Abstract
The concept of critical surface tension is generalized and reinterpreted in terms of a proposed equation of state. The equation defines a spectrum of critical surface tensions for a given surface, and provides a method by which the surface tension can be accurately determined from the contact angles of a series of testing liquids. The surface tensions obtained for solid polymers, organic solids and monolayers by this method agree remarkably well with those obtained from melt data (temperature dependence), liquid homologs (molecular-weight dependence) and the harmonic-mean equation. In contrast, those obtained by the geometric-mean equation and Zisman’s critical surface tensions are often too low. These results also support the validity of the harmonic-mean equation.
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© 1980 Plenum Press, New York
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Wu, S. (1980). Surface Tension of Solids: Generalization and Reinterpretation of Critical Surface Tension. In: Lee, LH. (eds) Adhesion and Adsorption of Polymers. Polymer Science and Technology, vol 12. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3093-6_5
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DOI: https://doi.org/10.1007/978-1-4613-3093-6_5
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