低聚物对聚酯织物分散染料染色废液COD_(Cr)的影响  

Influence of Oligomers on COD_(Cr) Values of Dyeing Wastewater of Polyester Fabrics Dyed with Disperse Dyes

作　　者：王文义[1] 陈红苗[1] 张元元[1] 罗艳[1] 

机构地区：[1]东华大学化学化工学院生态纺织教育部重点实验室,上海201620

出　　处：《染料与染色》2011年第1期44-46,27,共4页Dyestuffs and Coloration

基　　金：中央高校基本科研业务费专项资金(项目编号:2010A03-2-1)

摘　　要：采用原位聚合法在不同芯壁比条件下对纯分散染料进行微胶囊化,将其对溶剂萃取过低聚物的PTT及PET织物进行染色,采用紫外分光光度法测定染色废液CODCr值,并与相应的商品分散染料染色废液CODCr值进行比较。结果表明,低聚物的存在将增大PTT及PET织物染色废液的CODCr值;对于相同分散染料,芯壁比为1∶2的微胶囊染色废液CODCr值大于芯壁比为1∶4的微胶囊染色废液CODCr值;微胶囊分散染料染色废液CODCr值远低于相应商品分散染料的染色废液CODCr值。Microencapsulated disperse dyes with different core to wall ratios were prepared by in-situ polymerization.Then disperse dye microcapsules were used to dye PTT and PET fabrics which oligomers had been extracted by solvent.The CODCr values of dyeing wastewater were determined by ultraviolet spectrophotometry.The CODCr values of dyeing wastewater of microencapsulated and commercial disperse dyes were compared respectively.The results showed that oligomers cause the increase of CODCr values of dyeing wastewater;For the same disperse dyes,the CODCr values of dyeing wastewater with 1∶2 core to wall ratio microcapsules were higher than that of 1∶4 ratio;The CODCr values of dyeing wastewater of microencapsulated disperse dyes were lower than that of the corresponding commercial disperse dyes.

关 键 词：聚酯织物 低聚物 分散染料 染色废液 

分 类 号：X791[环境科学与工程—环境工程]