物理化学学报 >> 1995, Vol. 11 >> Issue (08): 758-761.doi: 10.3866/PKU.WHXB19950819

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混合表面活性剂的表面活性及加溶能力

李学刚,吴光权,张明晓,刘发敏   

  1. 西南农业大学中心实验室|重庆 630716
  • 收稿日期:1994-10-11 修回日期:1994-11-28 发布日期:1995-08-15
  • 通讯作者:

The Surface Activity and Solubilization Ability of Mixed Surfactant

Li Xue-Gang,Wu Guang-Quan,Zhang Ming-Xiao,Liu Fa-Min   

  1. Southwest Agricaltaral University,Centre Laboratory,Chongqing 630716
  • Received:1994-10-11 Revised:1994-11-28 Published:1995-08-15
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关键词: 阴阳离子混合表面活性剂, 加溶, 十二烷基聚氧乙烯醚硫酸盐, 氯化十二烷基三乙醇铵

Abstract:

The surface activity of the mixture, formed by sodium dodecylpolyoxyethylene sulfate (C12E7S) and dodecyltrihydroxyethylammonium chloride (C12NE), is much higher than that of the single one. The interaction between C12E7S and C12NE is very strong. The aqueous solution of C12E7S-C12NE is homogeneous. The solubilization of 1-pentanol by the aquous solution of C12E7S-C12NE is decrease when the mixed ratio approach 1∶1 and the solubilized curve is "V" type, in which the lowest solubilization is only about one third of the single one’s. The solubilization curve of n-hexane shows the maximum when the mixed retio approach 1:1.

Key words: Anionic-cationic surfactant, Solubilization, Sodium dodecylpolyoxyethylene sulfate, Dodecyltrihydroxyethylammonium chloride