062/TX-100混合体系在水中的溶液行为

PROPERTIES OF BINARY MIXTURE OF 062/TX-100 IN WATER SOLUTION

研究了琥珀酸二异辛酯磺酸钠(062)和异辛基酚聚氧乙烯醚(TX-100)复配物(062/TX-100)在水中的表面性质和胶团化行为,并对理想混合胶团cmcideal和混合体系中各组分在表面吸附层和胶团中的组成、相互作用参数和热力学参数进行分析计算。结果表明,复配物在n(062)∶n(TX-100)为0.4∶0.6与0.6∶0.4时,在胶束形成方面存在正加和增效,TX-100的加入明显降低了062的临界胶束浓度,混合胶团的形成为自发过程,胶团中062与TX-100分子具有较弱的相互作用,两种分子在气/液界面的吸附能力差不多,混合胶团中富含非离子表面活性剂TX-100。

The surface properties and micellization of binary mixture of sodium 1,4-bis（2-ethylhexyl）sulfosuccinate（062）and Triton X-100（TX-100）were investigated in water solution.The ideal critical micelle concentration（cmcideal）,the molar fraction of the different components,the interaction parameters and several thermodynamic properties of the mixed adsorbed film and micelle phase were also analyzed.Results showed that synergistic effects on the mixture are found in the formation of micelle when the molar ratio of 062 and TX-100 is 0.4to 0.6and 0.6to 0.4;with the addition of TX-100,the critical micelle concentration（cmc）of the mixture is decreased apparently comparing to the cmc of the 062;the formation of mixed micelle is spontaneous and the interaction of molecules between 062 and TX-100 is weak;the adsorption capacity of 062 and TX-100 on the gas-liquid interface are close;the mixed micelle are occupied mostly by TX-100.