【摘要】 主要应用傅里叶变换红外光谱 (FTIR) ,X -衍射 (XRD)及烟密度等实验分析了抑烟剂三氧化钼 (MoO3 )对聚氯乙烯 (PVC)热分解特性的影响。实验结果表明 :就PVC而言 ,MoO3 是一种性能优异的抑烟剂。其原因是MoO3 改变了PVC的热解途径 ,降低了PVC的热解速度 ,增加了残余炭的生成量 ;同时也得出MoO3 对PVC的抑烟作用主要表现在凝聚相中更多还原

【Abstract】 The effects of molybdenum trioxide on smoke suppression of PVC were studied by FTIR , XRD and smoke density measurement. It’s discovered that molybdenum trioxide is an excellent smoke suppression for PVC.The results of molybdenum trioxide on smoke suppression of PVC is attributed to the changing pattern of thermal decomposition ,reducing thermal decomposition rate and increasing char residue. It has been proved that the effect of molybdenum trioxide on smoke suppression of PVC is in condensed phase.更多还原