无机盐对Gemini表面活性剂性质的影响及其协同效应研究  

Effect of Inorganic Salts on Properties of Cationic Gemini Surfactants and Research on Synergism of Gemini Surfactants

作　　者：郑延成[1] 黄青松[2] 梅平[1] 谭得勤[1] 蔡红岩[3] 

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023 [2]河南油田分公司塔里木河南勘探公司,新疆库尔勒841100 [3]中国石油勘探开发研究院石油采收率所,北京100083

出　　处：《石油天然气学报》2009年第6期145-149,共5页Journal of Oil and Gas Technology

基　　金：国家"973"规划项目(G19990225)

摘　　要：利用1,3-二溴丙烷和烷基碳数为C12～C18长链叔胺合成了3种Gemini阳离子表面活性剂,对其纯度和熔点进行了测定,采用电导率法测定了临界胶团浓度(Cmc),研究了无机盐(NaCl、CaCl2、AlCl3)对3种Gemini阳离子表面活性剂的Cmc的影响,以及Gemini阳离子表面活性剂和十二烷基硫酸钠(SDS)的相互作用。试验结果表明,无机盐对Cmc影响较大,随着盐浓度增加,Cmc先降低后增加,而且三价Al3+比一价Na+的影响更大;合成的3种阳离子活性剂与SDS均有很好的协同作用,尤其是代号为C16-3-C16的相互作用更强,高活性的Gemini表面活性剂易于进入胶团中。Three kinds of quaternary-ammonium Gemini surfactants (C12～18-3-C12～18) were synthesized by the reaction of long-chain amines with 1,3-dibromopropane.Their critical micelle concentration (Cmc) values were determined by electric conductivity,and the effect of concentration of three inorganic salt on Cmc were discussed.Synergisms between the mixed surfactant system of Gemini surfactants /SDS were investigated.The results show that the effect of inorganic salts on cmc is serious,Cmc of surfactants is decreased firstly and then increased with the increase of concentration of inorganic salts,and the effect of Al3+ on cmc for the mixed system was better than that of Na+.The mixed system of Gemini surfactants and SDS has strong synergism in the mixed micelle,Gemini surfactants with low Cmc values are easy to enter micelle.

关 键 词：阳离子Gemini表面活性剂 合成 电导率 协同作用 临界胶团浓度 

分 类 号：TQ423[化学工程]