Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates

T. Stoebe, Zuxuan Lin, Randal M. Hill, Michael Ward, H. Ted Davis

Research output: Contribution to journalArticle

Abstract

The spreading behavior of aqueous solutions containing the ethoxylated alcohol surfactants CH3(CH2)9(OCH2CH2) 3OH and CH3(CH2)11(OCH2)n,-OH (n=3-6) on solid substrates has been investigated at different surfactant concentrations and substrate surface energies. The trends in the dynamic spreading behavior differ from those expected on the basis of the thermodynamic spreading coefficients calculated from static surface tensions. The data demonstrate that the spreading rates do not depend upon any identifiable aqueous phase surfactant microstructure. However, the spreading rate dependence upon the length of the hydrophilic poly(oxyethylene) chain suggests an interplay between surfactant adsorption on the substrate surface and the aggregation of this surfactant. The results suggest that the onset of turbidity, and an optimal surfactant hydrophilic/hydrophobic balance, are important for achieving high spreading rates.

Original languageEnglish (US)
Pages (from-to)7270-7275
Number of pages6
JournalLangmuir
Volume13
Issue number26
StatePublished - Dec 24 1997

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Surface-Active Agents
alcohols
Alcohols
Surface active agents
surfactants
Substrates
turbidity
Turbidity
Interfacial energy
surface energy
Surface tension
interfacial tension
Agglomeration
Thermodynamics
aqueous solutions
trends
Adsorption
thermodynamics
microstructure
Microstructure

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

Stoebe, T., Lin, Z., Hill, R. M., Ward, M., & Davis, H. T. (1997). Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates. Langmuir, 13(26), 7270-7275.

Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates. / Stoebe, T.; Lin, Zuxuan; Hill, Randal M.; Ward, Michael; Davis, H. Ted.

In: Langmuir, Vol. 13, No. 26, 24.12.1997, p. 7270-7275.

Research output: Contribution to journalArticle

Stoebe, T, Lin, Z, Hill, RM, Ward, M & Davis, HT 1997, 'Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates', Langmuir, vol. 13, no. 26, pp. 7270-7275.
Stoebe, T. ; Lin, Zuxuan ; Hill, Randal M. ; Ward, Michael ; Davis, H. Ted. / Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates. In: Langmuir. 1997 ; Vol. 13, No. 26. pp. 7270-7275.
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