含能材料2011，Vol.19Issue(6)：650-655,6.DOI:10.3969/j.issn.1006-9941.2011.06.012
动态真空安定性试验方法研究(Ⅳ):HMX的热分解
Dynamic Vacuum Stability Test (DVST) Method ( Ⅳ ) : Thermal Decomposition of HMX
摘要
Abstract
The thermal decomposition process of HMX was studied by dynamic vacuum stability test (DVST) method. The activation energy and pre-exponential constant of thermal decomposition reaction of HMX were obtained by universal integral method and differential method. The results show that the mechanism functions of thermal decomposition reaction of HMX at different isothermal temperatures are different. The thermal decomposition process of HMX obeys Ginstling-Brounshtein equation with 3D mechanism in the temperature range of 100 -110℃, parabola rule with 1D mechanism in the temperature range of 120-140 ℃ and Valensi equation with 2D mechanism at 150 ℃. Reaction rate constant (k) of the thermal decompositionreaction of HMX increases with temperature, but it does not accord with the Van't Hoff rule. The amount of decomposition gases of HMX below 150 ℃ obtained by DVST are less than 2.0 mL ? G-1 , showing that HMX has a good thermal stability. The Semenov equation obtained by the time(t) required to decompose 0. 1% HMX at different temperature( T) is lnfr = 12157. 95/T - 19. 0052. The effective storage life needed to consume 0.1 % HMX at 25℃ deduced by this equation is 90.6 a.关键词
物理化学/动态真空安定性试验(DVST)/奥克托今(HMX)/动力学参数/机理函数/安定性/储存寿命Key words
physical chemistry/ dynamic vacuum stability test (DVST)/ HMX/ kinetic parameter/ mechanism function/ thermal stability/ storage life分类
军事科技引用本文复制引用
刘芮,尹艳丽,张同来,杨利,张建国,周遵宁,乔小晶,王文杰,王丽琼..动态真空安定性试验方法研究(Ⅳ):HMX的热分解[J].含能材料,2011,19(6):650-655,6.基金项目
爆炸科学与技术国家重点实验室基金资助(批准号:ZDKT08-5-4,ZDKT10-01b) （批准号:ZDKT08-5-4,ZDKT10-01b）
