摘要
为减少废弃聚酯(PET)纤维对环境造成污染,促进资源循环利用,使用过量乙二醇(EG),以Zn(AC)2.2H2O为催化剂,在氮气保护下,对回收PET纤维进行解聚,并分离提纯,研究了乙二醇醇解工艺。结果表明:温度、催化剂用量和反应时间是影响醇解率的主要因素;醇解温度为196℃,催化剂用量是PET纤维质量的0.2%,反应时间为2 h,醇解率达到96.65%;对废弃PET纤维采用乙二醇醇解法回收具有一定的实用价值。
In order to reduce the pollution produced by polyester fiber wastes and promote resource recycling, the recycled polyester fiber was depolymerized through glycolysis using excessive ethylene glycol under a nitrogen atmosphere in the presence of metal acetate （Zn（Zn（AC）2·2H2O） as a catalyst. Glycolysis product was purified. It was found that the conversion rate of glycolysis is mainly influenced by reaction temperature and time, and amount of catalyst. The preferable conversion rate （96.65 % ） can be obtained with 0.2 % catalyst （on weight of PET fiber） at 196℃ for 2 h. The study reveals that the glycolysis of recycled polyester fiber is a good method with practicality.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2007年第11期21-24,共4页
Journal of Textile Research
基金
江苏省"六大人才高峰"基金资助项目(苏人通[2005]6-6)
生态纺织教育部重点实验室(江南大学)开放课题资助项目(KLET0624)
江南大学青年基金资助项目(2005lqn002)
关键词
聚酯纤维
回收
乙二醇
醇解
polyester fiber
recycle
ethylene glycol
glycolysis
