CO_(2)相变爆炸激发药剂热化学安定性研究  

Study on thermochemical stabilitiy of CO_(2) phase change explosion excitation agent

作　　者：杜明燃 王任松 王尹军 杨海斌 李继红 曹稳 胡赏赏 DU Ming-ran;WANG Ren-song;WANG Yin-jun;YANG Hai-bin;LI Ji-hong;CAO Wen;HU Shang-shang(Anhui University of Science and Technology,School of Chemical Engineering,Huainan 232000,Anhui,China;Guangdong Hongda Blasting Engineering Group Co.,Ltd.,Guangzhou 510623,China;BGRIMM Technology Group,Beijing 100160,China;School of Mechanics&Civil Engineering,China University of Mining&Technology(Beijing),Beijing 100083,China;Hebei Yunshan Chemical Group Co.,Ltd.,Xingtai 054011,Hebei,China)

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232000 [2]宏大爆破工程集团有限责任公司,广州510623 [3]矿冶科技集团有限公司,北京100160 [4]中国矿业大学(北京)力学与建筑工程学院,北京100083 [5]河北云山化工集团有限公司,河北邢台054011

出　　处：《工程爆破》2022年第6期97-104,共8页Engineering Blasting

基　　金：安徽省自然科学基金资助项目(1908085QA33);安徽省博士后研究人员科研活动经费资助项目(2019B344);安徽省高校科学研究资助项目(KJ2021A0431);安徽理工大学引进人才科研启动基金资助项目(11881)。

摘　　要：为了研究CO_(2)相变爆炸激发药剂的热化学安定性,采用热重法(TG)、绝热加速量热仪(ARC)和耐温试验测试了其热分解特性和耐温性能,用Ozawa法对所得热力学数据进行理论计算,并利用经验公式计算了该激发药剂的温度指数。结果表明:升温速率分别为1、2.5、5℃/min的条件下,激发药剂在90℃时开始有质量损失;在非密闭条件下,整个升温过程中各组分之间未发生氧化还原反应,激发药剂的热化学安定性主要体现为各组分的热稳定性,平均活化能为86.986 kJ/mol;在密闭条件下,升温至460℃之后激发药剂发生氧化还原反应,表明激发药剂热化学安定性良好,且一定的压力作用有利于激发药剂燃烧反应;耐温试验中,80℃保存48 h激发药剂未发生状态变化,而200℃下激发药剂组分损失严重,说明温度指数TS计算值90.199℃是合理的。In order to study the thermochemical stability of CO_(2)phase change explosion excitation agent, thethermal decomposition characteristics and temperature resistance were tested by thermogravimetry(TG), adiabatic accelerated calorimeter(ARC) and temperature resistance test. The thermodynamic data obtained were theoretically calculated by Ozawa method, and the long-term using temperature of the excitation agent was calculated by the empirical formula. The results show that the mass of the excitation agent decreased by about 90 ℃ at heating rates of 1, 2.5 and 5 ℃/min.Under non-closed conditions, there was no redox reaction between the components. The thermochemical stability of the was mainly reflected in the thermal stability of each component, and the average activation energy is about 86.986 kJ/mol. Under closed conditions, the redox reaction of the excitation agent occurs after heating to 460 ℃, indicating that the thermochemical stability of the excitation agent is good, and a certain pressure is beneficial to the combustion reaction of the excitation agent. In the temperature resistance test, there was no change in the state of the excitation agent at 80 °C for 48 h, while the component loss of the excitation agent at 200 °C was serious, indicating that the calculated value of the temperature index TS90.199 °C was reasonable.

关 键 词：二氧化碳相变爆炸 热重法 绝热加速量热仪 激发药剂 热化学安定性 耐温性 

分 类 号：TJ510.4[兵器科学与技术—军事化学与烟火技术]