聚苯乙烯泡沫保温材料的燃烧性能及热解动力学

以聚苯乙烯泡沫保温材料为研究对象,利用锥形量热仪（CCT）研究聚苯乙烯泡沫保温材料的燃烧性能,以同步热分析仪（TG/DSC）研究聚苯乙烯泡沫保温材料的热解行为,并采用Kissinger和Flynn-Wall-Ozawa 2种方法分析材料的热解动力学.研究结果表明,辐射功率越大,聚苯乙烯泡沫的热释放速率越大,生烟速率也相应提高;升温速率增大时材料的初始分解温度增大,最大热失重速率时的温度也向高温方向移动;由Kis-singer法和Flynn-Wall-Ozawa法均可得到良好的线性回归曲线,且后者可以计算出不同转化卒下的活化能值.

Combustion Properties and Pyrolysis Kinetics of Polystyrene Foam Insulation Materials

The combustion performance of polystyrene foam insulation materials was studied using cone calorimeter test （CCT）, and the thermal decomposition properties of polystyrene foam insulation materials were investigated by simultaneous thermal analy- zer（TG/DSC）. Kissinger and Flynn-Wall-Ozawa were adopt to discuss the pyrolysis ki- netics of this material. The experimental results showed that the greater the radiated power is, the faster the heat release rate of polystyrene foam is, and smoke generation rate has correspondingly increased. The initial decomposition temperature of the materi- al increases and the temperature of maximum rate of thermal mass loss move to high temperature when the heating rate increases. Both the Kissinger and Flynn-WalbOzawa method can get a good diagram of the linear regression, and the latter one can calculate activation energy values in the different conversion rate.