JMZ发射药及其组分的热分解性能  

Thermal Decomposition Performance of JMZ Propellants and Related Compositions

作　　者：何卫东[1] 徐皖育[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094

出　　处：《火炸药学报》2007年第4期43-46,共4页Chinese Journal of Explosives & Propellants

基　　金：国家"973"项目

摘　　要：用TG和DTA对含环氧乙烷/四氢呋喃共聚醚(PET)黏结剂的发射药(JMZ发射药)及其相关组分的热分解性能进行了研究。通过Kissinger法计算了一些不同配方热分解反应的活化能。对热分解过程及其影响因素进行了分析。结果表明,该类发射药的DTA曲线呈现两个放热峰。体系中加入了NC后,随着NC含量的增加,其活化能升高。该类发射药的热分解过程主要分为两个阶段:第一阶段为混合硝酸酯和NC的挥发和分解;第二阶段为硝胺的分解以及PET的降解。加入NC后,发射药体系的热稳定性增加。The thermal decomposition performance of JMZ gun propellants containing PET （copolyether of tctrahydrofuran and epoxy ethane） binder and their related compositions was studied by TG and DTA, The activation energy of thermal decomposition reaction of some different formulations was calculated by Kissinger＇s method. The thermal decomposition process and related factors affecting the process were analyzed. The results show that DTA curves of PET propellants indicate two exothermic peaks. With increasing the contents of NC, the activation energy of PET propellant system elevates when NC is added to the propellant system. Results show that thermal decomposition process of PET propellants can be divided into two stages： the first stage is the volatilization and decomposition of mixed nitrate and NC, and the second step is the decomposition of nitramine and PET. The addition of NC in the propellant system makes the thermal stability of the propellant system increase.

关 键 词：物理化学 发射药 热分解 活化能 

分 类 号：TQ562[化学工程—炸药化工]