支化十六烷基甲苯磺酸钠的油水界面张力  

Interfacial Properties of n-Hydrocarbon and Water in the Presence of Branched Hexadecane Toluene Sulfonates

作　　者：于涛[1] 杨洋[1] 张春辉[1] 李安军[1] 高晓宇[1] 丁伟[1] 曲广淼[1] 

机构地区：[1]大庆石油学院化学化工学院,大庆163318

出　　处：《应用化学》2009年第9期1011-1014,共4页Chinese Journal of Applied Chemistry

基　　金：国家重点基础研究规划"九七三"资助项目(2005tb221300)

摘　　要：研究了自制的3种十六烷基甲苯磺酸钠,在正构烷烃/水体系的界面性能。分别考察了磺酸盐脂肪链支化程度及浓度等以及外加助剂脂肪醇类型和无机盐浓度对磺酸盐最小烷烃碳数nmin和界面张力值的影响。结果表明,磺酸盐支化程度增加,其nmin变大,最低界面张力值变小;随着磺酸盐浓度的增加,界面张力值先下降后上升;随着助剂脂肪醇碳链长度的增加,其nmin逐渐变大;无机盐的影响则表现为随着盐浓度的增加界面张力值先下降后上升,超低界面张力值出现在一个适宜的盐浓度范围内。In the presence of each of 3 hexadecane toluene sulfonates synthesized in the laboratory, the effects of internal factors such as branched degree of the fatty chain and the concentration of the sulfonates and the external factors like the different kinds of aliphatic alcohols and the concentration of inorganic salt on either the minimum alkane carbon number or the interfacial tension were investigated. The results show that as the branch-degree increased, the minimum number of alkane carbon nmin increased, while the minimum value of interfacial tension decreased. As the concentration increased, the value of interfacial tension first decreased and then increased. The minimum alkane carbon number became big as the carbon chain length of the aliphatic alcohol increased. When the salt concentration increased, the interracial tension rose after the first drop, and ultra-low interfacial tension appeared at a suitable salt concentration.

关 键 词：支化十六烷基甲苯磺酸盐 最小烷烃碳数 界面张力 

分 类 号：O647.1[理学—物理化学]