火炸药学报2016，Vol.39Issue(4)：37-41,5.DOI:10.14077/j.issn.1007-7812.2016.04.007
LLM-105基PBX炸药的热分解反应动力学
Kinetics of Thermal Decomposition Reaction of LLM-105 Based PBX Explosives
摘要
Abstract
The curves of change in volume of gas evolved with time during the thermal decomposition of normal and nanocrystallization LLM‐105 based plastic bonded explosive (PBX) at different temperatures were measured by Bourdon manometer method .The apparent activation energy of normal and nanocrystallization LLM‐105 based PBX with decomposition extent of 0 .1% was calculated based on Arrhenius formula .Non‐isothermal thermal decomposi‐tion reaction kinetics of two kinds of LLM‐105 based PBX was studied by TG‐DSC .The results show that the ap‐parent activation energy of normal and nanocrystallization LLM‐105 based PBX explosives with decomposition extent of 0 .1% obtained by Arrhenius formula is 74 .67 and 138 .09 kJ/mol ,respectively .The apparent activation energy of normal and nanocrystallization LLM‐105 based PBX explosives with decomposition extent of about 50% obtained by Kissinger method is 389 .26 and 215 .73 kJ/mol ,the critical temperature of thermal explosion is 615 .0 and 600 .4 K ,respectively ,which is consistent with the result calculated by Ozawa method .The characteristic peak tem‐perature of two kinds of LLM‐105 based PBX when heating rate towards zero is 606 .94 and 586 .48K ,respectively . Compared with normal LLM‐105 based PBX ,thermal decomposition of nanocrystallization LLM‐105 based PBX ex‐plosive has higher reactivity and its thermal sensitivity is also improved .关键词
物理化学/LLM-105基PBX炸药/布氏压力计法/TG-DSC分析/热分解动力学Key words
physical chemistry/LLM-105 based PBX/Bourdon manometer method/TG-DSC analysis/thermal de-composition kinetics分类
军事科技引用本文复制引用
艾进,李建军,陈建波,陈捷,于谦,熊鹰..LLM-105基PBX炸药的热分解反应动力学[J].火炸药学报,2016,39(4):37-41,5.基金项目
国防科工局技术基础科研项目；中物院化材所科技创新基金资助 （）
