GSS362水溶液动态表面张力及吸附动力学研究  

Dynamic surface tension and adsorption kinetics of GSS362 aqueous solutions

作　　者：喻红梅[1] 华平[1] 朱国华[1] 刘骏峰[2] 孔德存[1] 刘倩[1] Yu Hongmei Hua Ping Zhu Guohua Liu Junfeng Kong Decun Liu Qian(School of Chemistry and Chemical Engineering, NantongUniversity, Nantong Jiangsu226019, China School of Textile and Clothing, Nantong University, Nantong Jiangsu226019, China)

机构地区：[1]南通大学化学化工学院,江苏南通226019 [2]南通大学纺织服装学院,江苏南通226019

出　　处：《石油化工》2017年第1期68-74,共7页Petrochemical Technology

基　　金：江苏省科技计划项目(BY2015047-12)

摘　　要：用最大泡压法测定了磺酸盐型双子表面活性剂1,3-丙二醇双子琥珀酸二异辛酯磺酸钠(GSS362)在不同温度和浓度下的动态表面张力;采用Rosen模型对动态表面张力进行了表征,同时用Ward-Tordai方程对GSS362的吸附机理进行了探讨。实验结果表明,GSS362的浓度越大,动态表面张力降低得越快,且介平衡值越接近平衡值;温度升高有利于GSS362在新鲜表面的吸附;GSS362在新鲜表面的吸附前期为扩散控制吸附,吸附后期为混合动力控制吸附。The dynamic surface tensions of 1,3-propanediol bis-isooctyl sulfo succinate（GSS362） aqueous solutions with different concentration were investigated at different temperature using the maximum bubble pressure method,and characterized by means of the Rosen model. The adsorption mechanism of GSS362 was studied by means of the Ward-Tordai equation. The results showed that,the higher the concentration was,the faster the dynamic surface tension of GSS362 decreased. When the concentration was higher than the critical micelle concentration,the medium equilibrium surface tension was nearly equal to the equilibrium surface tension. Temperature rise was beneficial to the adsorption of GSS362 on the fresh surface. The adsorption was controlled by diffusion in the beginning of the adsorption and controlled by mixed diffusion-kinetics in the later stage.

关 键 词：琥珀酸酯磺酸盐 双子表面活性剂 动态表面张力 吸附机理 

分 类 号：TQ423.1[化学工程]