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Valentina D. Dolzhikova, Yulia G. Bogdanova
Ratio of surfactant adsorption values at various
interfaces when wetting hydrophobic surfaces with aqueous solutions of Triton
X-100
Abstract
Abstract. Based on the adhesion tension isotherms γLV∙cosθ
= f (γLV), the relationship between the
adsorption values of surfactants at the solution/solid surface (ГSL)
and solution/air (ГLV) interfaces is examined by wetting Teflon and
polystyrene with aqueous solutions of the nonionic surfactant Triton X-100
(TX-100). The approach
presented in this paper demonstrates the feasibility of predicting the
wettability of hydrophobic surfaces for practical applications, using an
existing database on the surface tension of aqueous surfactant solutions and
their adsorption on the surface of solid adsorbents.
Key words:
wetting, contact angles, surfactants, adsorption
Copyright (C) Chemistry Dept., Moscow State University, 2002
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