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Enhanced Foamability of Sodium Dodecyl Sulfate Surfactant Mixed with Superspreader Trisiloxane-(poly)ethoxylate
- Authors
- Sett, S.; Sahu, R. P.; Pelot, D. D.; Yarin, A. L.
- Issue Date
- 16-12월-2014
- Publisher
- AMER CHEMICAL SOC
- Citation
- LANGMUIR, v.30, no.49, pp.14765 - 14775
- Indexed
- SCIE
SCOPUS
- Journal Title
- LANGMUIR
- Volume
- 30
- Number
- 49
- Start Page
- 14765
- End Page
- 14775
- ISSN
- 0743-7463
- 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.
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