季铵型阳离子聚丙烯酰胺水溶液的性质.pdf

化工进展
2064
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2012年第31卷第9期
研究开发
M310109D40440
季铵型阳离子聚丙烯酰胺水溶液的性质
腾晓旭',时建伟,张淑芬2
(1长江师范学院化学化工学院,重庆408100:2大连理工大学精细化工国家重点实验室,辽宁大连116012)
摘要:季铵型阳离子聚丙烯酰胺作为阳离子助剂处理棉纤维,其水溶液性质影响助剂在纤维上的处理效果
考察水溶液黏度性质和电导性质,用助剂处理后纤维的无盐染色效果进行证明。结果表明:分子量低的季铵型
阳离子聚丙烯酰胺在水溶液中比浓黏度较小,用其处理纤维有利于助剂在纤维上分布均匀,染色纤维匀染性好;
阳离子化度高的助剂在水溶液中电离能力较强,处理后纤维所带正电荷数量增加,染色纤维色深KS值増大
关键词:季铵型阳离子聚丙烯跣胺;水溶液性质;黏度;电导;无盐染色
中图分类号:TQ619.1
文献标志码:A
文章编号:1000-6613(2012)09-2064-07
Properties of aqueous solutions of cationic polyacrylamide with
quaternary ammonium group
TENG Xiaoxu, SHIT Jianwei ZHANG Shufen
( School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqin 408100, China;State Key
Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 1 16012, Liaoning, China)
Abstract: As a cationic agent, cationic polyacrylamide with quaternary ammonium group is used for
pretreatment of cotton fabrics and the pretreatment results were influenced by the solution properties of
the cationic agent. The viscosity and conductivity of the cationic agent were investigated, and the
results were proven by the salt-free dyeing data of the cationic cotton. It was indicated that the value of
reduced viscosity of the cationic agent with a low molecular weight was smaller, and the molecules of
the cationic agent could be well distributed on the pretreated cotton, and good levelness of the dyed
cotton was obtained. The number of the positive charges on the cotton pretreated with the cationic
agent with high cationic degree increased because of its stronger ionizing power in aqueous solution
and the K/S value of the dyed cotton also increased
Key words: cationic polyacrylamide with quaternary ammonium; solution properties; viscosity
conductivity, salt-free dyeing
在活性染料染色棉纤维的过程中,由于活性染带有正电荷,可以在染色过程中提高阴离子活性染
料带有阴离子水溶性基团,而棉纤维在水中也带有料在纤维上的上染能力,实现无盐染色。近些年
微弱的负电性,同性相斥,阻碍了染料对纤维的上来,关于阳离子聚合物作为阳离子助剂处理棉纤维
染,一般需要在染色过程中加入大量的无机盐来克用于活性染料无盐染色的报道很多,但这些报道大
服这种电荷排斥作用,促使染料向纤维的吸附扩散,
达到染色的目的叫。然而,染色之后,这些无机盐收稿日期:2020604修改稿日期:20)2-0625
存在于染色废水中,加大了染色废水的处理难度。基金项目:国家自然科学基金重点项目(208300和国家科技支撑
为了解决染色中无机盐的使用产生的问题,染
计划项目(2011BAE7B01)
第一作者:腾晓旭(1978-),女,讲师,博士,研究方向为高分子
料化学工作者提出了棉纤维阳离子化的方法。棉纤应用及活性染料无盐染色。联系人张淑芬,教授,长江学者,从事
维阳离子化是采用阳离子助剂处理棉纤维,使纤维
染料合成及生物质化学品的应用。E- mail zhangshfadlut edu.cn。