阳-非离子型聚氨酯表面活性剂的制备与性能  

Preparation and Properties of Cationic-Nonionic Polyurethane Surfactant

作　　者：孙哲[1] 强西怀[1,2] 陈渭[2] 李朦[1] 

机构地区：[1]陕西科技大学化学与化工学院 [2]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《高分子材料科学与工程》2016年第1期41-45,共5页Polymer Materials Science & Engineering

基　　金：陕西科技大学创新科研团队(TD12-04);陕西科技大学研究生创新基金

摘　　要：以异氟尔酮二异氰酸酯(IPDI)、聚氧乙烯长链烷基胺(PAE)等为主要原料,合成了一系列兼具阳离子特性和非离子特性的新型聚氨酯高分子表面活性剂;并对产物进行了红外分析,研究了其侧链烷基碳数、环氧乙烷加合数及外加电解质对表面张力、临界胶束浓度的影响。实验结果表明,当PAE侧链烷基为C_(18),环氧乙烷加合数目为5时,其聚氨酯高分子表面活性剂综合性能优异,溶液的临界胶束浓度为39.600 mg/L,水溶液的表面张力最低可达33.131 m N/m。A series of cationic-nonionic polyurethane surfactants were synthesized by reaction of 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate（ IPDI） with polyoxyethylene alkyl amine（ PAE）. Their chemical structure was characterized and confirmed by FT-IR analysis. The effects of the carbon number of alkyl side chain and altyl phenol polyoxyethylene as well as additional electrolyte on the surface tension and critical micelle concentration were researched. The results show that when the length of alkyl side chain is C18 and the number of ethylene oxide is 5,the surfactant has excellent comprehensive performance,and its critical micelle concentration is 0. 0396 g / L with the surface tension of 33. 131 mN / m.

关 键 词：阳-非离子聚氨酯 表面活性剂 聚氧乙烯长链烷基胺 

分 类 号：TQ423.1[化学工程]