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Effects of Added Surfactant on the Dynamic Interfacial Tension Behavior of Acidic Oil/Alkaline Systems

โœ Scribed by Youssef Touhami; Dipak Rana; Vladimir Hornof; Graham H. Neale

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
50 KB
Volume
239
Category
Article
ISSN
0021-9797

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โœฆ Synopsis

The effects of a ready-made surfactant (sodium dodecyl sulfate) on the dynamic interfacial tension between a model acidic oil (linoleic acid dissolved in paraffin oil) and various aqueous alkaline (NaOH) systems have been studied using pendant drop tensiometry at surfactant concentrations both below and above the critical micelle concentration (CMC). Below the CMC the added surfactant contributes significantly to a further reduction of interfacial tension of the reacting acid/alkaline system, whereas above the CMC the added surfactant plays an important role in damping the dynamic trends observed for the reactive system alone.

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Studies of Synergism/Antagonism for Lowering Dynamic Interfacial Tensions in Surfactant/Alkali/Acidic Oil Systems: 1. Synergism/Antagonism in Surfactant/Model Oil Systems
โœ Lu Zhang; Lan Luo; Sui Zhao; Jiayong Yu ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 125 KB

Experimental studies are conducted in order to elucidate the mechanisms responsible for synergism/antagonism for lowering dynamic interfacial tension in model oil/surfactant/brine systems. A well-defined model oil is selected for controlled design of experiments, thus enhancing verification of known