Bi Z, Zhang Z, Xu F, Qian Y, Yu J
Institute of Photographic Chemistry, Academia Sinica, Beijing, 100101, China
J Colloid Interface Sci. 1999 Jun 15;214(2):368-372. doi: 10.1006/jcis.1999.6208.
The wettability of kaolin with SDBS (sodium dodecyl benzene sulfonate) aqueous solutions was measured by the Washburn equation expressed as contact angles. The contact angle changes for SDBS aqueous solutions on kaolin surface was studied. The interfacial tension between the SDBS solutions and n-dodecane was measured using both drop volume and spinning drop methods. Then the oil recovery of n-dodecane on the kaolin surface was tested. It was found that the minimum contact angle (the most hydrophilic condition) and the maximum oil recovery occurred near the critical micelle concentration (CMC) of SDBS while the interfacial tension between the SDBS solution and n-dodecane was far from ultra-low. Copyright 1999 Academic Press.
通过以接触角表示的沃什伯恩方程测量了高岭土与十二烷基苯磺酸钠（SDBS）水溶液的润湿性。研究了SDBS水溶液在高岭土表面的接触角变化。使用滴体积法和旋滴法测量了SDBS溶液与正十二烷之间的界面张力。然后测试了正十二烷在高岭土表面的采收率。发现最小接触角（最亲水条件）和最大采收率出现在SDBS的临界胶束浓度（CMC）附近，而SDBS溶液与正十二烷之间的界面张力远未达到超低值。版权所有1999年学术出版社。
