电导法研究阳离子表面活性剂微乳液  

Conductometric study of microemulsion with cationic surfactant

作　　者：翁建新[1] 黄婷婷[1] 

机构地区：[1]华侨大学材料科学与工程学院,泉州362021

出　　处：《西南民族大学学报（自然科学版）》2005年第6期899-902,共4页Journal of Southwest Minzu University(Natural Science Edition)

摘　　要：应用电导法研究了CTAB/正丁醇/苯/水微乳液,在CTAB/正丁醇/苯的质量比1:1:2下,测定不同含水量的电导率,以及不同含水量的dlnσ/dT。实验结果表明,CTAB/正丁醇/苯/水微乳液具有连续的微乳区,在油包水型(W/O)微乳液和水包油型(O/W)微乳液之间存在双连续结构型(BC)微乳液。随着含水量的增大,在W/O区,微乳液的电导率不断升高,dlnσ/dT较慢地增大;在BC区,电导率基本不变,dlnσ/dT也先保持基本不变,接近O/W区时有明显增大;在O/W区,电导率不断升高,dlnσ/dT也较快地增大。CTAB/1-butanol/benzene/water microemulsion is studied by conductometric method in this article.The conductivity and d In σ/dT of microemulsion with different water contents are measured at mass ratio 1 ： 1 ：2 of CTAB/1-butanol/benzene. Experiments indicate that CTAB/1-butanol/benzene/ water micromulsion has continuous microemulsion region and that BC microemulsion exists between W/O and O/W. Along with the increase of water content, the conductivity continuously increases in W/O region, retains constant in BC region, continuously increases in O/W region too; the dlnσ/dT increases slowly in W/O region, retains constant first and obviously increases near O/W region in BC region ,increases fast in O/W region.

关 键 词：微乳液 电导 表面活性剂 

分 类 号：O647.2[理学—物理化学]