阳离子表面活性剂与聚合物乳液相互作用  

The interaction of cationic surfactants and polymer emulsion

作　　者：张海超[1] 房宽峻[1] 蔡玉青[1] 

机构地区：[1]纤维新材料与现代纺织国家重点实验室培育基地 青岛大学化学化工与环境学院,山东青岛266071

出　　处：《印染助剂》2012年第5期10-13,共4页Textile Auxiliaries

基　　金：山东省自然科学基金(Y2008B62);国家自然科学基金(51173086);生态纺织教育部重点实验室(东华大学)开放基金(ECO-ZD-2011-0011)

摘　　要：将两种阳离子表面活性剂和阴离子聚合物乳液混合,测定混合体系的电导率和表面张力变化,探索阳离子表面活性剂与乳液的相互作用机理.结果发现:十六烷基三甲基氯化铵(CTAC)和马来酸聚氧乙烯醚(20)双酯季铵盐型阳离子表面活性剂(OEMD-20)会通过静电吸引力吸附在乳胶粒表面,减少其表面所带电荷,改变其体积,降低乳胶粒的导电能力.同时CTAC和OEMD-20能与聚合物乳液中游离的阴离子表面活性剂(SDS)形成复合物,降低混合体系的表面张力.The electrical conductivity and surface tension of mixed solutions of cationic surfactants and an ionic polymer emulsion were measured,and the interaction mechanism was investigated.The results showed that the two kinds of cationic surfactants,cetyltrimethyl ammonium chloride（CTAC）and maleic acid polyoxy ethylene ether（20） di-ester quaternary ammonium（OEMD-20）,could adsorb on the surface of latex particle through electrostatic attractive force,and decrease its conductivity by reducing the charge on the surface of la tex particles and changing the particle volume.Both the surfactants could form complexes with the free anion ic surfactant in polymer emulsion,which reduced the surface tension of mixed system.

关 键 词：阳离子表面活性剂 聚合物乳液 影响 

分 类 号：TQ423[化学工程]