三硅氧烷季铵盐表面活性剂的制备及其表面活性  

Preparation of trisiloxane quaternary ammonium salt surfactant and it′s surface activity

作　　者：黄良仙[1] 赵洁[1] 肖波[1] 杨军胜[1] 李献起 安秋凤[1] 

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021 [2]唐山三友硅业有限责任公司,河北唐山063305

出　　处：《陕西科技大学学报（自然科学版）》2013年第6期86-89,共4页Journal of Shaanxi University of Science & Technology

基　　金：陕西省科技厅重大科技专项13115项目(2010ZDKG-35)

摘　　要：1,1,1,3,5,5,5-七甲基三硅氧烷(HMTS)和烯丙基缩水甘油醚(AGE)在铂催化下经硅氢加成反应制得环氧基三硅氧烷(ETS),再将其和四甲基乙二胺(TMDEA)进行开环反应制得一种新型表面活性剂——三硅氧烷季铵盐表面活性剂(TQAS).用IR对TQAS的结构进行了表征,并对TQAS的界面性能和发泡性能进行了研究.结果表明:TQAS溶液的临界胶束浓度(cmc)为0.7g·L-1,临界胶束浓度时的表面张力(γCMC)为26.4mN·m-1.质量分数为0.1%的TQAS水溶液的发泡力为2.20,5min的稳泡性为0.167,TQAS产生泡沫后泡沫易消失.A new kind of trisiloxane quaternary ammonium salt surfactant （TQAS） was syn- thesized by the ring-opening reaction of epoxy group trisiloxane （ETS） with N,N,N＇, N＇- tetramethylethylene diamine（TMEDA）. ETS was prepared by hydrosilylation from 1,1,1,3, 5,5,5-heptamethyltrisiloxane （HMTS） and allyl glycidyl ether （AGE） in the presence of platinum catalyst. The chemical structure of TQAS was characterized by IR. The interracial property and foaming property of TQAS were investigated. Experimental results were showed as follows. The critical micelle concentration （cmc） of TQAS solution is 0.7 g · L 1. The surface tension （Tcmc） Of TQAS solution in cmc is 26.4 mN＊ m 1. The foaming power of 0. 1% TQAS （mass fraction） solution is 2.20 and foam stability after 5 min is 0. 167. The bubble that produced by TQAS disappear easily.

关 键 词：表面活性剂 有机硅 三硅氧烷季铵盐 界面性能 发泡性能 

分 类 号：TQ423.12[化学工程] O627.41[理学—有机化学]