论文部分内容阅读
挤塑型聚苯乙烯(以下简称XPS)是建筑外墙中常用的一种易燃保温材料。本研究利用联用技术(TG-MS/FTIR),研究XPS在高温环境下的热解行为,通过Kissinger和Ozawa两种算法计算了其热解动力学参数,并通过质量损失和红外光谱图像分析了可能的热解产物。同时对XPS进行锥形量热测试,分析了不同外加热辐射强度下XPS的质量损失、热释放速率和释烟速率等参数的变化规律。
Extruded polystyrene (hereinafter referred to as XPS) is a flammable insulating material commonly used in building facades. In this study, the pyrolysis behavior of XPS under high temperature was studied by the combination of TG-MS / FTIR. The kinetic parameters of pyrolysis were calculated by Kissinger and Ozawa. The results of mass loss and infrared spectral image analysis Possible pyrolysis products. At the same time, the cone calorimeter test of XPS was carried out. The variation of mass loss, heat release rate and release rate of XPS under different external heating intensities were analyzed.