氧化降解壳聚糖在大豆纤维染色中的应用  

Application of Oxidative Degradation Chitosan in Soybean Protein Fiber Dyeing

作　　者：吕景春[1] 王进[1] 孙昌明[1] 

机构地区：[1]盐城工学院纺织服装学院,江苏盐城224051

出　　处：《纺织科技进展》2013年第1期31-34,40,共5页Progress in Textile Science & Technology

基　　金：2012年国家级大学生创新训练项目(201210305009)

摘　　要：利用双氧水氧化降解壳聚糖(CTS),采用粘度稀释法测定降解前后壳聚糖的分子量。将降解后不同分子量的壳聚糖溶解于1%醋酸溶液中处理大豆纤维织物,进行正交实验,研究对大豆纤维染色的增深效果。结果表明,降解后的分子量为11.7万壳聚糖在温度80℃,浓度4g/L,时间20min处理大豆纤维织物达到的增深效果最好;降解后的分子量为2.42万壳聚糖在温度80℃,浓度1g/L,时间20min处理大豆纤维织物达到的增深效果最好。将CTS应用于大豆纤维织物的表面改性,在不降低染色牢度的情况下可以改善活性染料的染色效果。The oxidative degradation of chitosan（CTS） by hydrogen peroxide was studied. The viscometry dilution measurement was used to determine the molecular weight of chitosan before and after degradation. Different molecular weight chitosan were dissolved in 1 % acetic acid solution to increase the dyeing depth effects on soybean protein fiber with orthogonal experiments. The research results showed that the degradation chitosan（Mw^- = 11.7 × 10^4） concentration of 4 g/L, the degradation chitosan（MW^-=2. 42× 10^4） concentration of 1 g/L, time of 20 minute and temperature of 80 ℃ were selected for orthogonal experiment and had good effects. The surface modification of soybean fiber with CTS could improve the effect of reactive dyes with good color fastness.

关 键 词：壳聚糖 氧化降解 大豆纤维 染色 

分 类 号：TS193.22[轻工技术与工程—纺织化学与染整工程]