ELENIMOL JS-2水溶液的动态表面张力及吸附动力学  

Dynamic Surface Tension and Adsorption Kinetics of Aqueous ELENIMOL JS-2 Solution

作　　者：姚志钢[1] 胡艾希[1] 黎小武[2] 李干佐[3] 

机构地区：[1]华南理工大学化工与能源学院,广东广州510640 [2]邵阳学院生物与化学工程系,湖南邵阳422000 [3]山东大学胶体与界面化学教育部重点实验室,山东济南250100

出　　处：《华南理工大学学报（自然科学版）》2007年第7期82-87,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：湖南省教育厅科研项目(04B058)

摘　　要：采用最大泡压法测定了反应型表面活性剂十二烷基烯丙基琥珀酸酯磺酸钠(ELENIMOLJS-2)水溶液的动态表面张力(DST),考察了浓度、温度和电解质对DST的影响,计算了反映动态表面张力的各种参数.结合Word-Tordai方程,对ELENIMOL JS-2水溶液的吸附动力学模式进行了研究,发现吸附初期为纯扩散控制模式,吸附后期为拟扩散控制模式,吸附中期为混合动力学控制模式.This paper first put forth a measurement of the dynamic surface tension （DST） of the reactive surfactant sodium dodecyl allyl sulfosuccinate （ELENIMOL JS-2） by means of the maximum bubble-pressure method. Next, the effects of the ELENIMOL JS-2 concentration, the temperature and the electrolyte on the DST were investigated. Then, the parameters describing the DST were calculated. Finally, according to Word-Tordai equation, the adsorption kinetics of aqueous ELENIMOL JS-2 solution was presented. The results show that the adsorption process follows a pure diffusion step at the beginning of the adsorption, obeys the mixed diffusion-kinetic adsorption mechanism during the adsorption process, and is finally controlled by a pseudo-diffusion step.

关 键 词：十二烷基烯丙基琥珀酸酯磺酸钠 动态表面张力 吸附动力学 最大泡压法 反应型(可聚合型)表面活性剂 

分 类 号：TQ423.9[化学工程]