聚ε-己内酯的热性能和结晶形态  

Studies on Thermal Behavior and Crystalline Morphology of Poly ε-caprolactone

作　　者：林少琨[1] 夏锋 潘纯华 张堃 林木良 

机构地区：[1]中山大学测试中心,广州510275

出　　处：《塑料工业》2000年第1期29-31,共3页China Plastics Industry

摘　　要：应用傅立叶变换红外光谱（ＦＴＩＲ） 、差示扫描量热法（ ＤＳＣ） 、热重分析（ＴＧ） 和偏光显微镜（ＰＭ） 等方法，研究了聚ε己内酯的化学组成、聚集态结构和热性能。同时考察了成核剂对聚ε己内酯的结晶形态和结晶行为的影响。实验结果表明，在聚ε己内酯中加入苯甲酸钠作为成核剂，有效地加速了聚ε己内酯的结晶过程。作为其结果，明显地破坏了其球晶的完整性，并使其结晶微细化。另一方面，加入成核剂在一定程度上降低了聚ε己内酯的流动速率。s The composition,aggregational structure and thermal behavior of a commercial poly ε caprolactone were investigated by FTIR,DSC,TGA and PM,and the effect of nucleating agent on the crystallization behavior and crystalline morphology of poly ε caprolactone was discussed.The results showed when sodium benzoate was used as nucleating agent,the crystallization process was speed-up and started at a higher temperature.The big spherocrystal was destroyed,and instead,some smaller crystalline was formed.On the other hand,the flow rate of the poly ε caprolactone was decreased to a certain extent at the same time when the nucleating agent was added.

关 键 词：聚ε-已内酯 热性能 成核作用 结晶形态 

分 类 号：TQ317.3[化学工程—高聚物工业]