期刊
JOURNAL OF SURFACTANTS AND DETERGENTS
卷 19, 期 4, 页码 701-712出版社
WILEY
DOI: 10.1007/s11743-016-1814-y
关键词
Microemulsion; Phase behavior; Winsor type III; Jatropha curcas; Interfacial tension
资金
- University of Malaya Research Grant (UMRG) [RP016-2012F, RP031B-15AFR]
- UM Post Graduate Grant [PG099-2014A]
- High Impact Research (HIR) Grant [UM.C/625/1/HIR/MOE/ENG/15 (HIR-D000015-16001)]
The formation and phase behavior of Jatropha curcas-based microemulsion systems, which could potentially be used in enhanced oil recovery applications, has been investigated. Winsor type III microemulsions were obtained by adding n-octane to Winsor type I microemulsion systems prepared using various concentrations of alkyl polyglucoside (APG). To optimize the formulation of type III microemulsion systems, five different types of co-surfactants, i.e. normal butyl alcohol (NBA), isobutyl alcohol, isopropyl alcohol, fatty acid alcohol C8 (FAC8) and fatty acid alcohol C8/C10 (FAC8/C10) were used. The microemulsion phase behavior was determined along with particle size distributions by dynamic light scattering measurements. Results show that the optimum Winston type III system can be achieved by mixing 3 wt% of NBA, 1 wt% APG and 3 wt% NaCl. At the optimum formulation, the IFT reached a minimum value (0.016 mN/m) and formed very small emulsion droplets with a narrow particle size distribution.
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