摘要
通过制作十六烷基三甲基溴化铵(CTAB)/脂肪醇/C5H12/水体系的拟三元相图,讨论了助表面活性剂(醇)与表面活性剂的质量比(Km)和助表面活性剂的种类对混合体系微乳化作用的影响.在研究范围内,当Km=1时,混合体系形成的微乳区最大.醇的链长是影响微乳区大小的另一个因素,所研究的3种醇中,丁醇为助表面活性剂时所形成的微乳状液含水量最大.
The phase behavior of the cetyltrimethylammonium bromide / alcohols / C5H12/water four- component system is represented in a pseudo-ternary phase diagram. It is found that there is a significant effect of cosurfactant-to-surfactant mass ratio, Km=Walcoho1/ WCTAB, on the area of the microemulsion region. The maximum area of microemulsion region occurs at Km = 1 for investigated cosurfactants （propanol, butanol and pentanol） over investigated km value range （1, 2, 3, and 4）. Microemulsification is also dependent on chain length of cosurfactants. The maximum water solubilization of microemulsion achieves in the case of butanol because butanol molecule possesses the optimum the hydrophile-lipophile balance value （HLB=7.0）. These results are explained in terms of the role of cosurfactant in formation of microemulsion.
出处
《湛江师范学院学报》
2007年第3期71-74,共4页
Journal of Zhanjiang Normal College
基金
广东省自然科学基金资助项目(04011432)
湛江师范学院科学研究基金资助项目(Z0219)
关键词
十六烷基三甲基溴化铵
微乳状液
相图
cetyltrimethylammoniun bromide
microemulsion
phase diagram
