基于铝基含能配合物及CL-20含能微芯片的制备及表征  

Preparation and Characterization of Energetic Microchips Based on Aluminized Energetic Coordination Polymers and CL-20

作　　者：孟珂娟 马小霞 李宇翔 张开黎[1] MENG Ke-juan;MA Xiao-xia;LI Yu-xiang;ZHANG Kai-li(Department of Mechanical Engineering,College of Engineering,City University of Hong Kong,Hong Kong 999077,China;School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]香港城市大学工学院机械工程系,中国香港999077 [2]北京理工大学机电学院,北京100081

出　　处：《火炸药学报》2024年第5期438-444,I0004,共8页Chinese Journal of Explosives & Propellants

基　　金：应用物理化学重点实验室基金(No.6142602210203)。

摘　　要：为提高含能微芯片的能量特性和燃烧特性,推进其在微推进器、微驱动器、微毁伤器等装置中的应用,通过在铜箔上原位生长含能配位聚合物(ECP)、电子束沉积n-Al及重结晶CL-20的方法制备了ECP@Al@CL-20的含能阵列,采用SEM、XRD、TG/DSC及高速摄影等表征方法对其微观形貌、物相组成、热分解特性、燃烧性能及贮存寿命进行了测试与分析。在此基础上,将其与微机电系统(MEMS)集成制得了功能性的ECP@Al@CL-20含能微芯片,并对含能微芯片进行了电容点火测试。结果表明,由于ECP的导热系数低,使ECP@Al@CL-20含能阵列从外到内的传热效率降低,导致放热峰温相比纯CL-20提高了8.5℃,从而提高了ECP@Al@CL-20的热稳定性;ECP@Al@CL-20含能阵列具有优异的燃烧性能,自持燃烧时间(340 ms)远大于ECP@Al的自持燃烧时间(120 ms),含能微芯片可在15 mJ的输入能量下激发。To enhance the energy characteristics and combustion performance of energetic microchips for their application in micro-propulsors,micro-actuators,and micro-detonators,the ECP@Al@CL-20 energetic array were synthesized through in situ growth of energetic coordination polymer(ECP)on copper foil,e-beam deposition of n-Al,and recrystallization of CL-20.The morphology,phase composition,thermal decomposition,combustion performance,and storage life were characterized by SEM,XRD,TG-DSC and high-speed photography.In addition,the functional ECP@Al@CL-20 energetic microchips were integrated with microelectro mechanical system(MEMS)and subjected to capacitor ignition tests.The results show that the ECP@Al@CL-20 energetic array reduces heat transfer efficiency from outside to inside due to the low thermal conductivity of ECP,resulting an increase of 8.5℃in the exothermic peak temperature compared to pure CL-20,thereby increasing the thermal stability of ECP@[e-mail] ECP@Al@CL-20 energetic array has excellent combustion performance,its self-sustaining combustion time(340 ms)is much higher than that of ECP@Al(120 ms),and it can be ignited under 15 mJ of input energy.

关 键 词：含能配位聚合物 微机电系统 纳米铝 CL-20 微加热器 含能微芯片 ECP MEMS 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O643[理学—物理化学]