纳米HMX基PBX的热分解特性  

Thermal Decomposition Characteristics of Nano-HMX Based PBX

作　　者：杨青[1] 刘杰[1] 曾江保 肖磊[1] 宋健[1] 姜炜[1] 

机构地区：[1]南京理工大学国家特种超细粉体工程技术研究中心,江苏南京210094 [2]甘肃银光化学工业集团科研所,甘肃白银730900

出　　处：《火炸药学报》2014年第6期16-19,共4页Chinese Journal of Explosives & Propellants

摘　　要：采用溶液-水悬浮法,通过控制水料比、反应温度、搅拌速度等因素制备了纳米HMX基PBX。使用热重(TG)/差示扫描量热(DSC)同步热分析仪研究了其热分解特性。结果表明,纳米HMX基PBX热分解反应的DTG峰温、活化能和放热量分别为557.5K、270.5kJ/mol和816.3J/g;与微米HMX基PBX相比,纳米HMX基PBX的DTG峰温延后3.7K,活化能提高86.9kJ/mol,放热量增加158J/g。在558.3K以下,纳米HMX基PBX的安定性优于微米HMX基PBX。The nano-HMX based polymer bonded explosive（PBX）was prepared using solution-water slurry method by controlling the ratio of water to material,the reaction temperature and the stirring speed etc factors.The thermal decomposition characteristics of nano-HMX based PBX were analyzed by a TG/DSC simultaneous thermal analyzer.Results show that DTG peak temperature,activation energy and exothermic quantity of the thermal decomposition reaction of the nano-HMX based PBX are 557.5K,270.5kJ/mol and 816.3J/g,respectively.In comparison with micron-HMX based PBX,DTG peak temperature of the nano-HMX based PBX shifts 3.7Kdownwards,its activation energy increases by 86.9kJ/mol and exothermic quantity increases by 158J/g.Below isokinetic temperature558.3K,the thermal stability of nano-HMX based PBX is better than that of micron-HMX based PBX.

关 键 词：物理化学 溶液-水悬浮法 纳米HMX PBX 热分解特性 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]