Formulating Alcohol-Free Microemulsions Using Rhamnolipid Biosurfactant and Rhamnolipid Mixtures

被引：38
|
作者：
Nguyen, Thu T. [1 ]
Sabatini, David A. [1 ]
机构：
[1] Univ Oklahoma, Inst Appl Surfactant Res, Norman, OK 73019 USA
来源：
JOURNAL OF SURFACTANTS AND DETERGENTS | 2009年 / 12卷 / 02期
关键词：
Biorenewable surfactant; Biosurfactant; Interfacial tension; Linker; Microemulsion; Solubilization; Characteristic curvature; PHASE-BEHAVIOR; DIESEL; WATER; CURVATURE; SYSTEMS; SURFACE; R1;
D O I：
10.1007/s11743-008-1098-y
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
This research focused on developing alcohol-free biosurfactant-based microemulsions. Rhamnolipid-based mixtures were found to have double the solubilization parameter as compared to sodium bis(2-ethyl) dihexyl sulfosuccinate/sodium dihexyl sulfosuccinate/sodium mono- and dimethyl naphthalene sulfonate at the same total molar concentration. For the first time, a phase diagram was developed for surfactant mixtures containing soy methyl ester ethoxylate, rhamnolipid and oleyl alcohol with limonene oil. This phase diagram can be used as a guideline for selecting a surfactant system and surfactant ratio to formulate microemulsions with a given oil. In addition, the alcohol-free biosurfactant-based microemulsions required reasonable salinity values for limonene, making it viable in a variety of applications.
引用
收藏
页码：109 / 115
页数：7
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