阳离子型反应性聚氨酯固色剂的合成及应用  

Synthesis and application of cationic reactive polyurethane fixing agent

作　　者：李庆[1] 涂强[1] 王晓艳[1] 张龙[1] 樊增禄[1] 

机构地区：[1]西安工程大学,陕西西安710048

出　　处：《印染》2013年第13期6-9,共4页China Dyeing and Finishing

基　　金：陕西省国际科技合作重点项目(编号:2011KW-17);西安市科学技术局技术转移促进工程项目(编号:CX1257②)

摘　　要：采用N-甲基二乙醇胺与甲苯二异氰酸酯反应,制得3种端基为—OH的多叔胺基链段作为扩链剂;分别对由异佛尔酮二异氰酸酯与聚乙二醇(PEG)反应制得的聚氨酯预聚体进行扩链反应,封闭—NCO基团,制得阳离子型反应性聚氨酯固色剂;再对活性染料染色棉织物进行固色处理。优化固色剂合成工艺试验结果显示,—NCO与—OH的物质的量之比值R=2.0,PEG的分子质量为1000,多叔胺基链段中阳离子基团数目为4个。该固色剂能将湿摩擦色牢度提高1级左右。Three kinds of chain extenders of multi-tertiary amine chain segments with --OH terminal group are synthesized with reaction of N-methyl-diethanolamine and toluene diisocyanate. Cationic reactive type polyurethane color fixing agents are pre-pared by chain extension reaction of isophorone diisocyanate and polyethylene glycol （PEG） with the above chain extenders followed by blocking reaction of --NCO groups, and then are applied to fixation of cotton reactive dyeings. The optimum synthesis parameters are： R =2. 0, molecular weight of PEG = 1 000 and the number of cationic groups in the multi-tertiary amine segment =4. The wet rubbing fastness of cotton reactive dyeings can be improved by about 1 level.

关 键 词：染色 固色剂 聚氨酯 棉织物 活性染料 

分 类 号：TS193.225[轻工技术与工程—纺织化学与染整工程]