PEEK—PES共混体系热稳定性研究和热分解动力学参数的计算

The Study on the Thermostability and the Calculation of Thermodissociation Kinetic Parameters of Blends of PEEK and PES

本文对以溶液共混法制得的不同重量比的PEEK—PES共混样品,进行了热失重曲线测定,比较了PEEK、PES及其共混物的热稳定性.讨论了升温速度对热分解过程的影响.本文还计算了各样品的热分解动力学参数,确定了计算的适当反应区间.

In this paper, blends of PEEK and PES of various compositions were prepared by solution coprecipitation. The TG method is chosen to disscus the thermostability, The kinetic parameters were obtained by integral and differential meth-ods. The main stage of pyrolysis is given for caculating the kinetic parameters.