高能碳氢燃料的热氧化动力学研究  

Study on the Thermo-oxidative Kinetics of High Energy Hydrocarbon Fuel

作　　者：黄飞[1] 胡双启[1] 赵海霞[1] 胡立双[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《火工品》2014年第3期46-49,共4页Initiators & Pyrotechnics

基　　金：山西省研究生优秀创新项目(20133101)

摘　　要：采用TG-DSC同步热分析仪在氩气气氛下研究了挂式四氢双环戊二烯(exo-THDCP)的热解性能。用不同升温速率的PDSC曲线进一步考察了氧气氛围下exo-THDCP的热氧化性能。结果表明,在高压氧气下exo-THDCP在温度高于380.53℃时将会发生氧化分解反应,反应过程可认为是单步反应。分别用Popescu法、FWO法和KAS法计算获得了exo-THDCP的热氧化分解动力学参数,确定反应机理函数为Avrami-Erofeev方程(n=3/4)。3种方法得到的活化能数值具有良好的一致性,活化能与指前因子之间存在动力学补偿效应。The pyrolysis performance of exo-THDCP was tested by TG-DSC method under argon atmosphere. Meanwhile, the thermo-oxidative decomposition of exo-THDCP was studied by using PDSC curves at different heating rates under oxygen atmosphere. The results show that under high pressure, the oxidative decomposition of exo-THDCP will occur at temperature above 380.53 ℃, and the reaction can be considered as a single step. The kinetic parameters were calculated by the Popescu, FWO and KAS method, and reflect that the thermo-oxidative decomposition process of exo-THDCP could be described by the Avramic-Erofeev equation （n=3/4）. The activation energy values obtained by the three methods are in good consistency. Kinetic compensation effects of the activation energy and pre-exponential factors were also found.

关 键 词：高能碳氢燃料 挂式四氢双环戊二烯 热氧化分解 动力学参数 动力学补偿效应 

分 类 号：V511.1[航空宇航科学与技术—航空宇航推进理论与工程]