机构地区: 南京工程学院材料工程学院
出 处: 《现代塑料加工应用》 2011年第2期40-43,共4页
摘 要: 采用非等温热重法对聚苯醚的热分解动力学进行研究,计算了反应活化能,采用积分法结合36种动力学函数来判断聚苯醚热分解的机理函数,得到了聚苯醚热动力学参数即反应的动力学函数,平均活化能(E_a)为211.64kJ/mol,指前因子(A)的平均值为6.24×10~7s^(-1),也获得了对应的热分解动力学方程。 Non-isothermal thermogravimetry was used to study the decomposition kinetics of poly(phenylene oxide)(PPO). The activation energy(E,) was calculated. Integral method with 36 types of kinetic function was proposed to define the most probable kinetic function. The decomposition kinetic parameters are determined, the most probable kinetic function is gained, the Ea is 211.64 kJ/mol, the pre-exponential(A) is 6.24×10^7s^-1, and the corresponding thermal decomposition dynamic function is gained.
领 域: [化学工程]