表面活性剂复配体系表面扩张流变性质研究  

Study on Surface Dilational Rheological Properties of Mixed Surfactant System

作　　者：王作华[1] 张春荣[2] 李浩程[1] 毛雷霆[1] 张磊[2] 张路[2] 赵濉[2] 

机构地区：[1]中国石化胜利油田胜利工程设计咨询有限公司,山东东营257000 [2]中国科学院理化技术研究所,北京100190

出　　处：《吉林师范大学学报（自然科学版）》2013年第1期65-67,72,共4页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家科技重大专项基金项目(2011ZX05011-004)

摘　　要：利用Langmuir槽法研究了阴离子型表面活性剂和非离子表面活性剂复配体系的扩张流变性质.实验发现:低分子量的阴离子型表面活性剂和非离子表面活性剂的表面扩张模量均随频率增大而升高,相角则随频率增大而降低,扩散交换过程起决定作用.结构不匹配的阴离子-非离子复配体系不存在协同效应,表面膜的强度没有得到显著提高,模量介于两种纯组分之间.The interfacial dilational rheological properties of the mixed systems of anionic suffactant SDBS and nonionic surfactants were investigated using Langmuir trough method. The results show that for suffactants with low molecular weights the dilational modulus increases, while phase angle decreases, with increasing frequency, which indicates the diffusion-exchange process dominates the properties of films. The mixed systems of anionic surfactant and nonionic surfactants have no obvious synergistic effect because of their mismatch structure. As a result,the moduli of the mixed systems lie between two pure components.

关 键 词：十二烷基苯磺酸钠 非离子表面活性剂 复配 界面扩张流变 模量 相角 

分 类 号：O647[理学—物理化学]