PET/PLA共混物的降解性  

Biodegradability of polyblends PET/PLA

作　　者：高翠丽[1] 夏延致[1] 纪全[1] 孔庆山[1] 李青杨[1] 

机构地区：[1]青岛大学化工学院青岛市纤维新材料与现代纺织重点实验室,山东青岛266071

出　　处：《化工学报》2006年第9期2237-2240,共4页CIESC Journal

基　　金：青岛市科技发展计划项目(04-2-JS-122;04-3-JJ-05).~~

摘　　要：The degradation rate and the change of molecular weight of polyblends PET/PLA with different ratios prepared by solution blends were investigated.The degradation rate of the membrane of PET/PLA(9∶1)was the highest among the four polyblends.The highest degradation rate of the polyblend membranes was observed in basic buffer solutions.The change of molecular weight of PET in polyblends under natural condition was similar to the change of the degradation rate of polyblends under all degradation conditions.The degradation rate and the change of molecular weight of polyblends PET/PLA with different ratios prepared by solution blends were investigated. The degradation rate of the membrane of PET/PLA （9 ： 1） was the highest among the four polyblends. The highest degradation rate of the polyblend membranes was observed in basic buffer solutions. The change of molecular weight of PET in polyblends under natural condition was similar to the change of the degradation rate of polyblends under all degradation conditions.

关 键 词：聚乳酸 聚对苯二甲酸乙二醇酯 共混改性 降解率 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]