【摘要】 用ＴＧ－ＤＴＧ－ＤＳＣ法研究了低氯化聚丙烯（Ｃｌ－ＰＰ），于空气中在不同升温速率β时的热氧降解过程，可为４步反应；随β增大，降解温度线性升高，失重率变化不大；结合反应热效应，探讨了反应机理。更多还原

【Abstract】 By using of TG-DTG-DSC, the thermal oxidative degradation process of Cl-PP in air at different heating rates have been studied. the process is four step reactions. With the increasing of heating rates, the degradational temperatures are raised linearly, but the change of degradational degrees are unnotable. The possible degradational mechanism of Cl-PP has been discussed according to the heating effect of reaction.更多还原