【摘要】 用热重分析和热重红外联用分析以及黏度降研究了聚对苯二甲酸丙二酯(PTT)的热降解性能,并且与聚对苯二甲酸乙二酯(PET)、聚对苯二甲酸丁二酯(PBT)进行了比较。结果表明,PET的热稳定性比PTT及PBT好,而PTT和PBT的热稳定性相近。PTT中加入抗氧剂能提高PTT的热氧稳定性能。更多还原

【Abstract】 Heat degradation of polytirmethylene terephthalate(PTT) is studied by means of the TG,TG-IR and intrinsic viscosity drop rate.Thermal stability result shows that PET is more stable than PTT and PBT,but PTT is same with PBT.Thermal stability of PTT could be improved by antioxidant.更多还原