【作者】 王瑞浩； 张景林； 王金英；

【Author】 WANG Rui-hao~(1,2),ZHANG Jing-lin~1,WANG Jin-ying~1 (1.School of Chemical Engineering and Environment,North University of China,Taiyuan 030051,China; 2.School of National Defense Science and Technology,Southwest University of Science and Technology,Mianyang 621010,China)

【机构】 中北大学化工与环境学院； 西南科技大学国防学院；

【摘要】 以氯化铁为前驱物,N,N-二甲基甲酰胺为溶剂,1,2-环氧丙烷为胶凝剂,制得RDX/Fe₂O₃凝胶,利用超临界流体干燥技术处理,得到固体粉末样品。运用扫描电镜、红外光谱和DSC对样品进行了形貌、结构和热分解特性的分析,并测试了复合炸药的撞击感度和摩擦感度。结果表明,实验所得复合炸药结构良好,呈纳米级;与原料和混合炸药相比较,RDX/Fe₂O₃复合炸药的撞击感度和摩擦感度都有明显降低,DSC曲线的热分解峰较原料提前9.76℃,放热量增加100%。更多还原

【Abstract】 The gel of RDX/Fe₂O₃ was prepared by sol-gel method under normal temperature and pressure,using FeCl3·6H₂O as the precursors,DMF as the solvent and 1,2-epoxypropane as gelating agent.The composite explosive of RDX/Fe₂O₃ was dried by supercritical CO₂ fluid.The RDX/Fe₂O₃ was characterized by SEM and Fourier transform infrared spectroscopy,and the impact sensitivity,friction sensitivity were tested and thermal decomposition characteristics of RDX/Fe₂O₃ was analyzed by DSC.The result shows that the structure of composite explosive is good,its particle size is the nanoscale.Compared with raw materials and explosive mixture,composite explosive impact sensitivity and friction sensitivity are significantly reduced.Compared with raw material RDX,the thermal decomposition peak of DSC curves early 9.76℃and the heat quantity was increased by 100%.更多还原