镁粉和铝粉对CO_(2)相变激发药剂性能的影响  

Effect of magnesium and aluminum powders on the performance of CO_(2) phase change excitation agent

作　　者：杜明燃 胡赏赏 王尹军 杨海斌 曹稳 王任松 DU Ming-ran;HU Shang-shang;WANG Yin-jun;YANG Hai-bin;CAO Wen;WANG Ren-song(School of Chemical and Blasting Engineering,Anhui University of Science and Technology,Huainan 232001,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,100083,China;Hebei Yunshan Chemical Group Co.,Ltd.,Xingtai 054011,Hebei,China)

机构地区：[1]安徽理工大学化工与爆破学院,安徽淮南232001 [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》2024年第2期88-97,共10页Engineering Blasting

基　　金：安徽省高校科学研究项目(KJ2021A0431);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基金项目(2019B344);安徽理工大学引进人才科研启动基金项目(11881)。

摘　　要：为了提高CO_(2)相变激发药剂的放热量,在激发药剂中分别添加2%和4%质量分数的镁粉或铝粉,通过热重法(TG)、引燃试验、耐温试验和反应热试验,研究其热分解特性、安全性、耐温性和反应热的变化。结果表明:镁粉或铝粉对激发药剂的热分解特性无明显影响,加入2%和4%镁粉的激发药剂表观活化能分别增加16.68 kJ/mol和43.96 kJ/mol,反应热分别提高5.1%和10%;而同样比例的铝粉,表观活化能分别增加28.89 kJ/mol和55.21 kJ/mol,反应热分别提高6.6%和12.9%;加入少量镁粉或铝粉的激发药剂无爆炸危险,安全性良好;加入镁粉或铝粉的激发药剂在70℃保温48 h后,整体并未发生明显变化,温度指数Ts在90℃左右,表明其耐温性能良好。In order to improve the heat release of CO_(2) phase change excitation agent,2%and 4%magnesium powder or aluminum powder was added to the excitation agent.The thermal decomposition characteristics,safety,temperature resistance and reaction heat were studied by thermogravimetry(TG),ignition test,temperature resistance test and reaction heat test.The results show that the thermal decomposition characteristics of excitation agent did not change significantly,the apparent activation energy of excitation agent added with 2%and 4%magnesium powder increased by 16.68 kJ/mol and 43.96 kJ/mol,the reaction heat increased by 5.1%and 10%;the apparent activation energy of the same proportion of aluminum powder increased by 28.89 kJ/mol and 55.21 kJ/mol,the reaction heat increased by 6.6%and 12.9%;the ignition test shows that the excitation agent with a small amount of magnesium powder or aluminum powder has no explosion danger and its safety is good;the excitation agent added with magnesium powder or aluminum powder has not changed significantly at 70℃ for 48 hours,the temperature index Ts was about 90℃,indicating that its temperature resistance was good.

关 键 词：CO_(2)膨胀爆破 激发药剂 反应热 

分 类 号：TJ510.4[兵器科学与技术—军事化学与烟火技术] TD235[矿业工程—矿井建设]