金属离子Mn^(2+)对α-烯烃磺酸钠/月桂酰胺丙基羟磺基甜菜碱蠕虫状胶束形成的调控作用研究  

Study on the regulatory effect of Mn^(2+)ions on the formation of worm-like micelles of α-olefin sulfonate/lauramidopropyl hydroxysulfobetaine

作　　者：储鹏举 余晓玲[2] 侯克期 王文慧 李隆杰 葛际江[1] Pengju Chu;Xiaoling Yu;Keqi Hou;Wenhui Wang;Longjie Li;Jijiang Ge(College of Petroleum Engineering,China University of Petroleum(East China),Qingdao,Shandong 266580,China;Petroleum Engineering Technology Research Institute of SINOPEC Jiangsu Oilfield Company,Yangzhou,Jiangsu 225009,China)

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266580 [2]中国石化江苏油田分公司石油工程技术研究院,江苏扬州225009

出　　处：《日用化学工业（中英文）》2024年第6期621-629,共9页China Surfactant Detergent & Cosmetics

摘　　要：Mn^(2+)可诱导阴离子表面活性剂α-烯烃磺酸钠(AOS)与两性离子表面活性剂月桂酰胺丙基羟磺基甜菜碱(LHSB)的混合物形成蠕虫状胶束。在表面活性剂质量分数1%~5%范围内,研究了AOS与LHSB质量比、Mn^(2+)质量分数、表面活性剂质量分数及温度对蠕虫状胶束黏弹性的影响。结果表明,随着AOS与LHSB质量比从1:9变为9:1以及Mn^(2+)质量分数的增加,表面活性剂溶液黏度先增大后减小。体系的零剪切黏度随表面活性剂质量分数指数增加。常温下研究了表面活性剂黏度的变化规律,测得AOS与LHSB质量比为3:7时体系黏度最大,且当表面活性剂质量分数为2%时的最佳Mn^(2+)含量为0.5%,此时零剪切黏度为9030.9 mPa·s。用冷冻透射电镜(cryo-TEM)观察胶束形态,发现此时溶液中蠕虫状胶束较长,网络结构紧密,呈现出良好的线性黏弹性。表面活性剂质量分数、Mn^(2+)质量分数对蠕虫状胶束的形成有较大影响。The worm-like micelles formed by the mixture of an anionic surfactant(sodiumα-olefin sulfonate,AOS)and a zwitterionic surfactant(lauramidopropyl hydroxysulfobetaine,LHSB)as induced by Mn^(2+)ions were studied.The influencing factors studied included the mass ratio between the two surfactants,the mass fraction of Mn^(2+),the mass fraction of surfactants,and the temperature.The results showed that,the viscosity of the surfactant solution first increased and then decreased as the mass ratio of AOS:LHSB was increased and the mass fraction of Mn^(2+)was increased.The zero-shear viscosity of the system exhibited an exponential increase with increasing mass fraction of surfactants.The viscosity measurement was conducted at 25℃.The maximum viscosity was obtained when the mass ratio of AOS:LHSB was 3:7,and the optimal Mn^(2+)content was 0.5%when the mass fraction of surfactants was 2%(the zero-shear viscosity at this optimal condition was measured to be 9030.9 mPa·s).The morphology of the micelles in solution was observed using Cryo-TEM,revealing long worm-like micelles with a tight network structure and good linear viscoelasticity.The mass fraction of surfactants and the presence of Mn^(2+)were found to have significant influence on the formation of worm-like micelles.This study could provide important additional information for the preparation of worm-like micelles using mixed anionic-zwitterionic surfactant system.

关 键 词：阴离子表面活性剂 两性离子表面活性剂 蠕虫状胶束 金属离子调控 

分 类 号：TQ423[化学工程]