摘要
采用吊环法测定了十六烷基三甲基溴化铵水溶液不同浓度下的界面张力及其临界胶束浓度ＣＭＣ值．运用吉布斯吸附等温方程和动态法分别计算和测定了该溶液系统的界面吸附平衡关系．结论表明：（１）动态法测定结果高度吻合吉布斯方程的理论计算；（２）表面活性剂分子在气－液两相界面是以单分子层形式定向有序排列的．
By hung-ring method,the interfacial tensions of cetyl - trimethylammonium bromide(CTA - Br) at different concentrations and its critical mecille concentration(CMC) have been researched. By Gibbs' equation to adsorptive isotherm and dynamicstate method,the equilibria adsorption data of CTA - Br at gas - liquid interface have been measured and stuied. The conclusions show: (1 )the result from dynamic - state method is highly coincided with that from Gibbs' equation ; (2)the arrangement of CTA -Br molecules at the interface is mono - molecular,oriented and ordinal.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1994年第4期25-28,共4页
Natural Science Journal of Xiangtan University
关键词
界面张力
吸附平衡
阳离子型
表面活性剂
interfacial tension, adsorption, equilibrium, molecule-arrangement
