AES与AEO_9复配体系表面活性的研究  

Study on surface activity and dynamic surface tension of AES and AEO_9 complex systems

作　　者：李刚森[1] 蔡立芳[1] 陈帅[1] 邓俊[1] 谢亮[1] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450001

出　　处：《精细与专用化学品》2016年第6期20-23,共4页Fine and Specialty Chemicals

摘　　要：研究了脂肪醇聚氧乙烯醚硫酸钠(AES)与非离子表面活性剂脂肪醇聚氧乙烯醚9(AEO_9)按不同质量比复配所得表面活性剂体系的临界胶束浓度(cmc)、平衡表面张力(γ)及动态表面张力(DST)。当得到AES-AEO_9复配体系质量比为3∶7时,临界胶束浓度(cmc)最小,为0.10mmol/L,γ_(cmc)为33.62mN/m;质量比为1∶9时动态表面张力最好,此时动态表面张力参数n为1.74,t*为1.32s,表面张力降低速率R_(1/2)为14.30mN/m·s。不同浓度动态表面张力结果表明,随复配体系浓度增加,诱导期节省时间t_i减少,R_(1/2)增加。The critical micelle concentration（cmc）, equilibrium surface tension（y） and dinamic surface tension （DST） of AES and AEO9 complex system, that was obtained with different mass ratio of AES to AEO9, were stud- ied. When mass ratio of AES to AEO9 was 3 ： 7, then the critical micelle concentration（cmc） of AES-AEO9 com- pound system was smallest（0.10mmol/L） at 25℃ , the Ycmc was 33. 62mN/m. When the mass ratio was 1 ~ 9, then the dynamic surface tension（DST） was best, dynamic surface tension parameter was n = 1.74, t ＊ = 1.32, R1/2 = 14.30mN/m · s respectively. The DST of different concentrations showed that the end time（tl） for induced area was decreased, while the drop rate of surface tension（R1/2 ） was increased with the concentration increasing of complex system.

关 键 词：脂肪醇聚氧乙烯醚硫酸钠 脂肪醇聚氧乙烯醚9 协同效应 动态表面张力 

分 类 号：TQ423[化学工程]