希夫碱锰配合物催化过氧化氢低温漂白棉针织物的性能研究  

Low-temperature Peroxide Bleaching of Cotton Knitted Fabrics Catalyzed by Manganese Complex

作　　者：汪南方[1] 刘钰颖 赵宇新 潘璞[1] 阳海[1] 钟创林 WANG Nan-fang;LIU Yu-ying;ZHAO Yu-xin;PAN Pu;YANG Hai;ZHONG Chuang-lin(Hunan Provincial Key Laboratory of Environmental Catalysis&Waste Recycling,Hunan Institute of Engineering,Xiangtan 411104,China;Guangdong Innovative Fine Chemical Co.,Ltd.,Shantou 515141,China)

机构地区：[1]湖南工程学院环境催化与废弃物再生化湖南省重点实验室,湘潭411104 [2]广东创新精细化工实业有限公司,汕头515141

出　　处：《湖南工程学院学报（自然科学版）》2021年第2期72-78,共7页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：湖南省创新平台开放基金项目(18K091);湖南省科技托举人才工程项目(2020TJ-Q12).

摘　　要：为解决传统高温练漂中棉针织物加工过程能耗高、纤维损伤大的问题,以二乙烯三胺、三乙烯四胺、N,N解决双(3-氨丙基)乙二胺、单乙醇胺分别与水杨醛、锰盐一锅法反应制备金属锰配合物ML2、ML3、ML4和ML5用于棉针织物低温漂白加工.借助红外光谱仪分析金属配合物的化学结构,研究配合物/过氧化氢体系的催化分解特性,讨论了锰配合物ML3/过氧化氢低温漂白工艺因素对织物白度的影响,结果发现漂白工艺的最优条件为:锰配合物1.0 mg/L、氢氧化钠1.0 g/L、30%H_(2)O_(2)7.0 g/L、精练剂1.0~2.0 g/L,浴比1∶20,在70℃处理60 min.最优条件下获得的棉针织物的白度为79.0%.In order to solve the problems of high energy consumption and fiber damage in the process of traditional high temperature scouring and bleaching of cotton knitted fabric,manganese complexes ML2,ML3,ML4 and ML5 are prepared by one-pot reaction of diethylenetriamine,triethylenetriamine,N,N’-bis(3-aminopropyl) ethylenediamine and ethanolamine with salicylaldehyde and manganese salt respectively. The chemical structure of metal complex is analyzed by infrared spectrometer(IR). The catalytic decomposition of hydrogen peroxide by complexes is investigated. Influence of processing factors of manganese complex ML3/hydrogen peroxide bleaching system on fabric whiteness is studied to obtain the optimal processing parameters. The results show that the satisfactory whiteness(79%) can be obtained by treating the cotton knitted fabric at 70℃ for 60 min in a bleaching bath containing 1.0 mg/L manganese complex,1.0 g/L sodium hydroxide,7.0 g/L 30%H_(2)O_(2) and 1.0-2.0 g/L scouring agent using a liquor ratio of 1∶20.

关 键 词：锰配合物 催化分解 低温漂白 棉针织物 过氧化氢 

分 类 号：TS193.638[轻工技术与工程—纺织化学与染整工程]