Fabrication of electrostatic safety copper azide film with in situ growing MOF  

作　　者：Shuang Wang Li Yang Zhenzhan Yan Jimin Han Xiaoting Ren Wei Li 

机构地区：[1]State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing,100081,China [2]Science and Technology on Aerospace Chemical Power Laboratory,Hubei Institute of Aerospace Chemotechnology,Xiangyang,441003,Hubei,China

出　　处：《Defence Technology（防务技术）》2023年第9期93-100,共8页Defence Technology

基　　金：financial support from the National Natural Science Foundation of China(Grant No.12102051);the State Key Laboratory of Explosion Science and Technology(Grant No.QNKT2022-04)。

摘　　要：Due to its extremely low electrostatic sensitivity,copper azide primary explosive is greatly limited in practical applications.In this study,a composite film with Cu-MOF in-situ growth on carbon nanofilm was prepared by electrospinning and solvothermal methods,and CNF@Cu-N3film with electrostatic safety was obtained by carbonization and azide later.Its electrostatic sensitivity(E50)was greatly increased from 0.05 mJ of raw materials to 4.06 mJ,and still maintained a good detonation performance which could successfully detonate the CL-20 secondary explosive.This is mainly due to the synergistic effect of the carbon film and the MOF structure,which greatly improves the conductivity of the entire system and the uniform distribution of copper particles,providing a new preparation strategy for metal azide film that is suitable for the micro-initiator device.

关 键 词：Carbon nanofilm Metal-organic framework Copper azide(CA) Electrostatic sensitivity ELECTROSPINNING 

分 类 号：TB383.2[一般工业技术—材料科学与工程] TJ45[兵器科学与技术—火炮、自动武器与弹药工程]