分散染料还原性质的极谱研究  

Polarographic Study of Reductive Disperse Dyes

作　　者：龙家杰[1] 王惠珍[1] 程万里[1] 唐人成[1] 范秉宪[1] 货铁强[1] 吴宇宁 

机构地区：[1]苏州大学材料工程学院,苏州215021 [2]苏州进宇印染有限公司

出　　处：《染料工业》2001年第2期11-20,10,共11页Dyestuff Industry

摘　　要：本文通过经典极谱法对分散染料的还原难易、快慢进行了探讨。测定了分散染料半波电位（E1/2）及表观半还原时间（t1/2）,分析了分散染料半波电位与拨染性之间的关系,研究了分散染料结构类型、取代基团、工艺参数对半波电位和拨染性的影响。提出表观半还原时间与拔染速率之间存在的对应关系。The reductivity behavior of disperse dyes have been studied by polarography from the view of thermodynamics and dynamics. The polarographic half- wave potentials of disperse dyes of different structures were measured. The relationships of polarographic half - wave potentials with respect to their discharge properties discussed; their effecting factors, such as the structures of disperse dyes, the presence of functional groups as well as the technological parameters were also studied. A discussion on the relationship of apparent half - reduced time with discharge speed of disperse dyes is presented. Both the half - wave potentials and apparent half - reduced time of disperse dyes would indicate the reductivity, dischargeability and discharge speed of disperse dyes if selected for discharge printing on polyester fabrics.

关 键 词：分散染料 半波电位 表观半还原时间 拔染印花 涤纶织物 还原性质 极谱 

分 类 号：TS193[轻工技术与工程—纺织化学与染整工程]