热分析-红外联用对PDADN热分解动力学的研究  

Investigation on the thermal decomposition kinetics for PDADN by TG-FTIR

作　　者：施震灏[1] 陈智群[1] 刘子如[1] 金朋刚[1] 王明[1] 

机构地区：[1]西安近代化学研究所,西安710065

出　　处：《固体火箭技术》2007年第3期233-237,共5页Journal of Solid Rocket Technology

基　　金：火炸药燃烧国防科技重点实验室基金项目(9140c350501062s35-09)

摘　　要：采用DSC-TG-FTIR等技术研究了PDADN热分解全过程,得到了分解气体产物红外特征相对吸收强度随时间或温度变化的“热-红”(TIR)曲线,建立了TIR曲线的非等温动力学处理方法,用Coats-Redfern方程和Ozawa方程计算获得了PDADN热分解气体产物生成的动力学参数和机理函数,从热分解各气体产物之间生成速率的“等动力学点”分析了PDADN的热分解机理。The whole process of the PDADN thermal decomposition was investigated by using the DSC-TG-FTIR technology. The ＂thermo-infrared＂ （TIR）curves of the change of the IR characteristics relative absorption intensity of decomposition gas products with temperature and time were obtained. The non-isothermal kinetics treat method for TIR curves was established. The kinetic parameters and mechanism functions of PDADN decomposition gas products were obtained by using the Coats-Redfern and Ozawa equations. The mechanism of PDADN thermal decomposition was analyzed based on ＂iso-kinetic point＂ of the formation rate among all the decomposition gas products.

关 键 词：叠氮硝酸酯 热分解 TG-FTIR联用 非等温动力学 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]