一种双子型双酯类阳离子表面活性剂的生物降解行为研究  

Biodegradation behavior of a gemini type di-ester-quat cationic surfactant

作　　者：苗宗成[1] 王义伟[2] 王登武[1] 危冲 杨建洲[2] 

机构地区：[1]西京学院基础部,陕西西安710123 [2]陕西科技大学教育部轻化工助剂重点实验室,陕西西安710021 [3]汉中市公安局,陕西汉中723000

出　　处：《日用化学工业》2013年第5期354-357,共4页China Surfactant Detergent & Cosmetics

基　　金：陕西省教育厅科研资助项目(12JK1074);西京学院科研基金资助项目(XJ13B01;XJ120230)

摘　　要：以环氧氯丙烷、十八烷基二甲基叔胺和己二酸为反应原料,制备了一种包含双酯结构的双子(Gemini)型阳离子表面活性剂,通过傅里叶变换红外光谱和元素分析确定了产物结构。采用好氧污泥的方法研究所制备表面活性剂的生物降解性能,并进一步研究了降解动力学特性,发现在一定条件下,这种表面活性剂的完全降解时间为8 d,且降解过程符合二级动力学模型。A gemini type di -ester- quat cationic surfactant was prepared using epichlorohydrin, octadecyl dimethyl amine and hexanedioic acid as starting materials. Structure of the product was characterized by FTIR and elemental analysis. Biodegradation performance of the product was examined with aerobic activated sludge method, and the degradation kinetic characteristics was further studied that the time needed for complete degradation under certain conditions was identified as 8 d and the degradation process follows second order kinetics model.

关 键 词：阳离子表面活性剂 酯基 生物降解 动力学 

分 类 号：TQ423.12[化学工程]