Abstract
FROM the theory of thin liquid films it is evident that the tension of the two-sided film should be less than twice the tension of the bulk liquid surfaces with which the film is in equilibrium. One would therefore expect there to be a contact angle between the thin film and the surfaces of the adjacent bulk liquid. This was recently pointed out by Mysels, Huisman and Razouk, who have also confirmed the existence and measured the magnitude of this contact angle for “black” aqueous soap films in air1.
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References
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HAYDON, D., TAYLOR, J. Contact Angles for Thin Lipid Films and the Determination of London-van der Waals Forces. Nature 217, 739–740 (1968). https://doi.org/10.1038/217739a0
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DOI: https://doi.org/10.1038/217739a0
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