Enhanced foamability of sodium dodecyl sulfate surfactant mixed with superspreader trisiloxane-(poly)ethoxylate

S. Sett, R. P. Sahu, D. D. Pelot, Alexander Yarin

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Gravitational drainage from thin vertical surfactant solution films and gravitational drainage in a settler column are used to study the behavior of foams based on two-surfactant mixtures. Namely, solutions of the anionic sodium dodecyl sulfate (SDS) and nonionic superspreader SILWET L-77, and their mixtures at different mixing ratios, are studied. It is shown, for the first time, that solutions having a longer lifetime in the vertical film drainage process also possess a higher foamability. An additional and unexpected unique result is that when using a mixed surfactant system, the foamability can be much greater than the foamabilities of the individual components. (Graph Presented).

Original languageEnglish
Pages (from-to)14765-14775
Number of pages11
JournalLangmuir
Volume30
Issue number49
DOIs
Publication statusPublished - 2014 Dec 16

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

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