TATP的非等温热分解特性研究  

Non-isothermal Thermal Decomposition Characteristics of TATP

作　　者：李松林 刘锋[1] 黄国强 吴攀宇 魏国 LI Song-lin;LIU Feng;HUANG Guo-qiang;WU Pan-yu;WEI Guo(School of Chemical Engineering,Anhui University of Science and Technology,Huainan,232001)

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001

出　　处：《火工品》2022年第1期58-62,共5页Initiators & Pyrotechnics

摘　　要：为了在实验室安全地使用三过氧化三丙酮(TATP)以及了解热分解过程,利用TG-DTG技术测试其在氮气气氛中的非等温热分解过程,采用Kissinger法、Ozawa法、Starink法等方法对测试结果进行动力学参数计算,通过模型拟合法推测了TATP在氮气气氛下的热分解机理函数。结果表明:升温速率为0.2℃·min^(-1)时起始反应温度为44.62℃,二者呈正相关;TATP在氮气中的分解十分彻底;分解率在20%~95%阶段时,氮气气氛下TATP表观分解活化能随分解率的增大呈先减小后增大的趋势;氮气气氛下TATP的热分解过程符合n=1的幂函数机理,G(α)=α。To provide thermal decomposition data support of TATP which is a kind of explosive with potential laboratory application,the non-isothermal thermal decomposition process of TATP was tested by TG-DTG technology in nitrogen atmosphere.The corresponding kinetic parameters were obtained according to the Kissinger,Ozawa and Starink methods,and the thermal decomposition mechanism of TATP was also predicted by the model fitting method.The results show that the initial reaction temperature is 44.74℃as the heating rate of 0.2℃·min^(-1),the two factors are positively correlated.The decomposition of TATP in the nitrogen atmosphere is complete.The apparent activation energy decreases firstly and then increase as the conversion rate increasing in the range of 20%~95%.The thermal decomposition reaction mechanism follows the power function mechanism(n=1),G(α)=α.

关 键 词：物理化学 三过氧化三丙酮(TATP) TG-DTG 非等温热分解 

分 类 号：TQ560.72[化学工程—炸药化工]