Stability of O/W Emulsion Films from Mixed Aqueous Solutions of Inulin-Based Polymeric and Polyethylene Glycol Surfactants
Autor: | Tharwat F. Tadros, Dotchi Exerowa, Bart Levecke, G. Gotchev, Khristo Khristov |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | Journal of Dispersion Science and Technology. 31:31-37 |
ISSN: | 1532-2351 0193-2691 |
DOI: | 10.1080/01932690903119633 |
Popis: | Oil-in-water (O/W) emulsion films stabilized by mixtures of an inulin-based polymeric surfactant INUTEC SP1 and a hexa(ethyleneglycol) mono n-dodecyl ether (C12(EO)6) surfactant were investigated to obtain disjoining pressure isotherms at various NaCl concentrations. A comparison with results on emulsion films stabilized by the individual components was made. At a constant INUTEC SP1 concentration, mixtures with different components' molar ratios were prepared by varying the C12(EO)6 concentration, C S . Below a certain value of C S in the mixtures, Newton black films were obtained, which remained stable to rupture with pressure increase and their stability significantly decreased with further increase in C S . |
Databáze: | OpenAIRE |
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