Formation and Phase Behavior of Winsor Type III Jatropha curcas-Based Microemulsion Systems

• Published in: Journal of surfactants and detergents Vol. 19; no. 4; pp. 701 - 712
• Main Authors: Nordiyana, M. S. W., Khalil, Munawar, Jan, Badrul Mohamed, Ali, Brahim Si, Tong, Chong Wen
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2016; Springer Nature B.V
• Subjects: Alcohols; Aquatic Pollution; Chemistry; Chemistry and Materials Science; Fatty acids; Industrial Chemistry/Chemical Engineering; Interfacial tension; Jatrophacurcas; Light scattering; Microemulsion; Oil recovery; Original Article; Particle size; Phase behavior; Physical Chemistry; Polymer Sciences; Sodium chloride; Surfaces and Interfaces; Surfactants; Thin Films; Waste Water Technology; Water Management; Water Pollution Control; Winsor type III; Microemulsion; Phase behavior; Interfacial tension; Winsor type III
• ISSN: 1097-3958; 1558-9293
• DOI: 10.1007/s11743-016-1814-y

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.