基于未反应核模型的叠氮多孔铜合成影响因素分析  

Kinetic Study of Reaction of Copper Azide Based on Shrinking Core Model

作　　者：张蕾[1,2] 张方[2] 王燕兰[2] 姜元勇[3] 杨利[1] 陈建华[2] 张蕊[2] ZHANG Lei;ZHANG Fang;WANG Yan-lan;JIANG Yuan-yong;YANG Li;CHEN Jian-hua;ZHANG Rui(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Science and Technology on Applied Physical Chemistry Laboratory,Shaanxi Applied Physics-chemistry Research Institute,Xi′an 710061,China;Institute of Engineering Mechanics,Northeastern University,Liaoning 11000,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]陕西应用物理化学研究所应用物理化学国家级重点实验室,陕西西安710061 [3]东北大学工程力学研究所,辽宁沈阳110004

出　　处：《含能材料》2018年第12期1049-1055,共7页Chinese Journal of Energetic Materials

摘　　要：针对叠氮多孔铜的气固原位合成过程中各参数之间的匹配关系问题,建立了二维稳态气固未反应核数学模型,对叠氮多孔铜原位合成过程中的晶体生长机制和动态过程进行模拟,得到了叠氮多孔铜的原位反应速率以及固体转化率与前躯体多孔铜的粒径、孔隙率、装药高度以及反应时间等因素之间的关系。同时选取一组孔隙率约为80%,高度为1 mm,粒径分别为50,100,200,500 nm的前驱体多孔铜进行叠氮化铜合成实验分析。结果表明,四种不同条件下的试验数据与模拟仿真数据的产物成分比变化趋势一致,且最大偏差仅为2.1%。Aiming at the matching relationship between various parameters in the gas-solid in-situ synthesis of copper azide,we establish a two-dimensional shrinking core model to simulate the crystal growth mechanism of in-situ synthesis of copper azide and dynamic process.The relationship between the reaction rate of azide porous copper and the solid conversion rate and the diameter of precursor,porosity,charge height and reaction time have been obtained.At the same time,in order to verify the reliability of the model,a set of porous copper precursors with a porosity of approximately 80%and a height of 1 mm and particle diameters of 50,100,200 and 500 nm are selected for the analysis of copper azide.Results show that the experimental data of the four different azide products are consistent with the simulated,and the maximum deviation is only 2.1%.

关 键 词：气固反应 叠氮多孔铜 微元体动力学 原位反应 未反应核模型 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O64[理学—物理化学]