新型磷酸酯甜菜碱两性表面活性剂物化性能研究  

Study on the Physico-chemical Properties of New Type Amphoteric Surfactants Phosphobetaines

作　　者：王志辉[1] 农兰平[1] 赖伟杰[1] 

机构地区：[1]茂名学院化工学院,广东茂名525000

出　　处：《茂名学院学报》2004年第4期16-19,共4页Journal of Maoming College

摘　　要：　研究了一类新型的两性表面活性剂─3-[N-(3-烷氧基-2-羟丙基)-N,N-二甲基铵]-2-羟丙基酸性磷酸酯甜菜碱(AHDHPB)的物化性能,包括两性特征、泡沫性能、表面张力、临界胶束浓度、临界溶解温度。研究结果表明,这类表面活性剂在pH=4.0～7.0范围内显示两性特征;在pH=5左右具有优良的发泡力、泡沫持久性和室温下优良的水溶性;其临界胶束浓度(cmc)和表面张力(γcmc)比阴离子表面活性剂十二烷基硫酸钠(SDS)和阳离子表面活性剂十二烷基三甲基溴化铵(DTAB)要低,属于高效表面活性剂。The physico-chemical properties of a new type of zwitterionic surfactant─3-[N-(3-Alkoxyl-2-Hydroxypropyl)-N,N-Dimethylammonium]-2-Hydroxypropyl Acid Phosphobetaines(AHDHPB) were measured and discussed in this paper. zwitterionic characteristic and foaming, surface tension, critical micelle concentration(cmc) and Krafft point are covered.The results showed the phosphobetaines in this paper the zwitterionic characteristic at pH 4.0 to 7.0,outstanding foaming power, foam persistence at about pH=5 and hight solubility at room temperature, their cmc and surface tension are lower than anionic surfactant (SDS) and cationic surfactant( BTAB) , belonging to high efficiency surfactant.

关 键 词：两性表面活性剂 磷酸酯甜菜碱 物化性能 

分 类 号：TQ42302[化学工程]