在缩聚阶段加入废长丝醇解物生产纤维级聚酯  

Fiber Grade Polyester Prepared by Adding Glycolytic Fiber Waste in Polycondensation

作　　者：冯寅[1,2] 殷久鹏 

机构地区：[1]浙江理工大学材料与纺织学院,浙江杭州310018 [2]桐昆集团股份有限公司,浙江桐乡314500

出　　处：《合成纤维》2011年第11期30-32,共3页Synthetic Fiber in China

摘　　要：选择无油涤纶长丝的废丝,以醋酸锌作催化剂、乙二醇作醇解剂,在220℃左右进行醇解反应,然后经过滤除去未反应的杂质,以一定量添加到预缩聚反应釜中参与缩聚反应,造粒得到质量均匀的聚酯切片。测试结果表明:醇解产物添加量在质量分数0.2%以下时,制得切片的性能达到纤维级聚酯切片标准。The investigation was related to recycling waste polyester fiber.Oilless waste polyester fiber took the glycolysis reaction with glycol under the catalyst of Zn（AC）2,at 220 ℃.Then the product was filtrated in order to remove unreacted impurities.Ploycondensation reaction was conducted by adding a certain amount of glycolytic product and the uniform polyester chips were obtained.The results showed that the additon of the glycolytic product was less than 0.2 %,the performance index of polyester chips reached the standard of fiber grade.

关 键 词：涤纶废长丝 醇解 聚酯切片 缩聚 循环利用 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]