一种两性离子交换纤维的制备  

Preparation of an Amphoteric Ion Exchange Fiber

作　　者：王雪飞[1] 吴政[1,2] 

机构地区：[1]北京服装学院材料科学与工程学院,北京100029 [2]北京市服装材料研究开发与评价重点实验室,北京100029

出　　处：《北京服装学院学报（自然科学版）》2010年第4期6-16,共11页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

摘　　要：为了开发聚丙烯腈基离子交换纤维以提高离子交换纤维的实用性,采用PAN纤维为基体纤维,先后进行接枝共聚、碱性水解和氯甲基化及胺化反应,制得不同导入率和交换容量的弱酸弱碱两性离子交换纤维;研究了反应过程中各种因素的影响,得到最佳反应条件;通过电镜对两性纤维进行了微观形态分析,对产物进行了红外光谱分析.实验结果表明:纤维的阳离子交换容量为1.53 mmol/g,阴离子交换容量为0.64 mmol/g,由PAN纤维制备两性纤维的方法可行.In order to develop PAN-based ion exchange fiber to enhance the practicality of ion ex- change fiber, PAN fiber was used as substrate in this study. Weak acidic and weak basic amphoteric ion exchange fibers of different grafting rate and exchange capacity were prepared from PAN fiber by means of chemical modification, copolymerization, chloromethylation and amination. Through the exploration of various process parameters, the optimum synthesis condition was obtained. Infrared spectroscopy and scanning electron microscopy were used to characterize the ion exchange fibers. The results showed that weak acidic exchange capacity of the fiber was 1.53 mmol/g and weak basic exchange capacity of the fiber was 0.64 mmol/g, the method in preparation of weak acidic and weak basic amphoteric fibers from PAN fiber was feasible.

关 键 词：PAN 改性 接枝 离子交换纤维 

分 类 号：TQ342.84[化学工程—化纤工业]