双氧水低温漂白催化剂的合成及应用  

Synthesis and application of a catalyst for low-temperature hydrogen peroxide bleaching

作　　者：张海希[1,2] 李慧[1,2] 周向东[1,2] 

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215021 [2]苏州大学现代丝绸国家工程实验室,江苏苏州215123

出　　处：《印染》2015年第21期5-9,共5页China Dyeing and Finishing

基　　金：江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：以水杨醛与乙二胺为原料,采用两步法合成工艺,经缩聚反应得到双水杨醛缩乙二胺配体;再将配体与四水合二氯化锰进行配位,得到希夫碱金属锰配合物。将希夫碱金属锰配合物用于棉织物的低温漂白,探讨了反应温度、配合物浓度及pH值对漂白效果的影响。结果表明,在漂白温度为60℃、pH值为9.5、希夫碱金属锰配合物的浓度为40μmol/L的条件下,处理后的棉织物白度达81.5%,强力保留率为95.4%。Bis（salicylidene） ethylenediamine ligand is synthesized with salicylaldehyde and ethylenedi- amine as raw materials by two-step process. Then the ligand is coordinated with manganese chloride tetrahydrate to prepare Schiff base manganese complex. The low temperature bleaching of cotton fab-ric with the complex is carried out. The influence of reaction temperature, the complex concentration and pH value on the bleaching effect is discussed. The results show that the cotton fabric features 81.5% of whiteness and 95.4% of strength retention rate when bleached with the complex 40μmol/L at 60℃ and pH value 9.5.

关 键 词：氧漂 过氧化氢 催化剂 希夫碱配合物 棉织物 

分 类 号：TS192.2[轻工技术与工程—纺织化学与染整工程]