PEN/PTT共混聚酯的熔融行为  

Melting crystallization behavior of PEN/PTT blends

作　　者：詹天珍[1] 张建梅[2] 

机构地区：[1]华东理工大学石油化工学院化工系,上海201512 [2]常州工学院材料成型及控制工程系,江苏213002

出　　处：《合成纤维工业》2007年第1期37-39,共3页China Synthetic Fiber Industry

摘　　要：利用差示扫描量热仪对不同配比的聚萘二甲酸乙二醇酯/聚对苯二甲酸丙二醇酯(PEN/PTT)共混体系的熔融行为进行了分析,发现在共混体系中两组分形成各自的晶体,PEN和PTT的熔点均随另一组分含量的增加而下降。根据Nishi-Wang方程,按300℃计算,由PEN/PTT共混体系中PEN熔点下降计算所得到的相互作用能密度为-0．214 2 J/cm^3,相互作用参数为-0．006 8,表明PEN/PTY共混体系在熔融态是热力学性质稳定的相容体系。The melting behavior of polyethylene-2,6-naphthalate/polytrimethylene terephthalate （PEN/PTT） blends at different ratios was studied with a differential scanning calorimeter. It was found that the two polymers in the blend system formed the crystals individually. The melting point of PEN or PTT was decreased while increasing the content of one another component. According to Nishi-Wang equation, the interaction energy density and interaction parameter of PEN/PTT blend system at 300℃ were calculated as - 0,214 2 J/cm^3 and - 0.006 8 respectively during the drop of PEN melting point, which indicated that the PEN/ blend system was a thermodynamics stable compatible system at the melting state.

关 键 词：聚萘二甲酸乙二醇酯 聚对苯二甲酸丙二醇酯 共混 熔融 热力学 熔点 

分 类 号：TQ320[化学工程—合成树脂塑料工业]