CL-20与HMX在硝酸酯体系下的共晶现象  

Eutectic Phenomenon of CL-20 and HMX in Nitrate Ester System

作　　者：郑晓林 左国平 张华 ZHENG Xiao-Lin;ZUO Guo-ping;ZHANG Hua(Inner Mongolia Aerospace Power Machinery Testing Institute,Hohhot 010010,China;Inner Mongolia Aerospace Honggang Machinery Factory,Hohhot 010010,China)

机构地区：[1]内蒙航天动力机械测试所,内蒙古呼和浩特010010 [2]内蒙古航天红岗机械有限公司,内蒙古呼和浩特010010

出　　处：《火炸药学报》2025年第1期59-63,I0006,共6页Chinese Journal of Explosives & Propellants

摘　　要：通过固体推进剂加速老化贮存试验测试了不同老化时间下推进剂的力学性能。结果表明,随着老化时间的延长,推进剂的模量、伸长率均出现降低,说明推进剂力学性能呈现劣化趋势。为了进一步揭示推进剂力学性能劣化的原因,基于溶剂法制备了CL-20/HMX共晶,开展了CL-20和HMX在硝酸酯体系下的共晶现象研究;采用场发射扫描电子显微镜(FE-SEM)、X-射线衍射仪(XRD)、傅里叶红外光谱(FTIR)和热分析对共晶的形貌、结构、热性能进行了表征;采用分离法从推进剂老化后表面提取出一种新的晶体,采用SEM、XRD、FTIR对新晶体结构进行验证。结果表明,CL-20与HMX在硝酸酯黏合剂中发生溶解后晶型未发生改变,高温加速老化过程中CL-20和HMX形成了共晶。The mechanical properties of solid propellants under different aging times were tested through accelerated aging storage tests.The results showed that with the extension of aging time,the modulus and elongation of the propellant decreased,indicating a deteriorating trend in the mechanical properties of the propellant.In order to further reveal the reasons for the deterioration of the mechanical properties of propellants,CL-20/HMX eutectic was prepared by solvent method,and the eutectic phenomenon of CL-20 and HMX in nitrate ester system was studied;The morphology,structure,and thermal properties of the eutectic were characterized using field emission scanning electron microscopy(FE-SEM),X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),and thermal analysis;A new crystal was extracted from the aged surface of the propellant using a separation method,and its structure was verified using SEM,XRD,and FTIR.The results showed that the crystal structure of CL-20 and HMX did not change after dissolution in nitrate ester adhesive,but during the high-temperature accelerated aging process,CL-20 and HMX formed eutectic.

关 键 词：物理化学 CL-20 HMX 硝酸酯类推进剂 共晶 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O76[理学—晶体学]