摘要
利用丙三醇溶剂对废旧聚酯织物进行脱色,以织物脱色前后的K/S值对脱色效果进行表征。研究了聚酯织物与丙三醇质量比、脱色温度和时间对脱色效果的影响,得到丙三醇对聚酯织物的脱色工艺为:聚酯织物与丙三醇质量比1:20、220℃脱色处理20 min,最高脱色率可达93.94%。对丙三醇进行回收利用,纯度约为86.03%。利用回收的丙三醇对废旧织物再次脱色,脱色率可达90.36%。
The glycerol solvent is used for decolorization of waste polyester fabric and the effect of decol- erization is characterized by the K/S value of the fabric before and after decolorization. The effects of the ratio of waste colored polyester fabric to glycerol, decolorization temperature and time on degradation are studied. The results show that the effect of degradation by glycerol can be up to 93.94% under the condition of the ratio of waste colored polyester fabric to glycerol 1：20, decolorizing at 220 ℃ for 20 min. The purity of the recycled ethylene glycol can reach 86.03%.The decolorization rate of waste colored polyester fabric by recycled glycerol can reach 90.36%.
出处
《印染》
北大核心
2016年第24期38-40,共3页
China Dyeing and Finishing
基金
国家自然科学基金项目(21504033)
江苏省产学研创新项目(BY2012060)
中央高校基本科研业务费专项资金资助(JUSRP51505)
国家十三五专项(2016YFB0302901-3)
关键词
染整副产品
利用
丙三醇
废旧有色聚酯
脱色
dyeing and finishing by-product
utilization
glycerol
waste colored polyester
decolorization
