摘要
为降低CL-20的感度,采用原位聚合方法,通过聚苯胺(PANI)对CL-20进行包覆制备了CL-20@PANI;采用扫描电镜(SEM)、傅里叶变换红外光谱(FTIR)及X射线衍射仪(XRD)分别对比了CL-20在包覆前后的微观形貌、分子结构及晶型,通过差示扫描量热仪(DSC)对CL-20包覆前后的热稳定性进行分析,并对其机械感度进行测试。结果表明,PANI可以成功包覆在CL-20表面,且包覆后形成的复合材料并未改变CL-20的晶型;PANI对CL-20的热分解影响不大,且能延缓CL-20的相变,可作为CL-20的多态稳定剂;与原料CL-20相比,CL-20被PANI包覆后其撞击感度特性落高增加了21cm,摩擦感度从100%降至70%,说明PANI可以对CL-20实现包覆降感的效果。
To reduce the sensitivity of CL-20,an in-situ polymerization method was used to prepare CL-20@PANI by coating CL-20 with polyaniline(PANI).The morphology,molecular structure,and crystal form of CL-20 before and after coating were analyzed and compared using scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FTIR),and X-ray diffraction(XRD).The thermal stability of CL-20 before and after coating was analyzed using differential scanning calorimetry(DSC),and its mechanical sensitivity was tested.The results show that PANI can be successfully coated on the surface of CL-20,and the composite material formed after coating do not change the crystal structure of CL-20.PANI has little effect on the thermal decomposition of CL-20 and can delay the phase transition of CL-20,making it a polymorphic stabilizer for CL-20.Compared with the raw material CL-20,the impact sensitivity(expressed as characteristic drop height)of CL-20 increases by 21cm after being coated with PANI,and the friction sensitivity decreases from 100%to 70%,indicating that PANI can achieve the effect of coating and reduce the sensitivity of CL-20.
作者
岳跃辉
刘玉存
贾康辉
张向荣
YUE Yue-hui;LIU Yu-cun;JIA Kang-hui;ZHANG Xiang-rong(State Key Laboratory of Explosion Science and Safety Protection,Beijing Institute of Technology,Beijing 100081,China;School of Environmental and Safety Engineering,North University of China,Taiyuan 030051,China;Shanxi Jiangyang Chemical Co.,Ltd.,Taiyuan 030041,China)
出处
《火炸药学报》
北大核心
2025年第7期631-636,I0002,共7页
Chinese Journal of Explosives & Propellants
关键词
物理化学
聚苯胺
PANI
表面改性
CL-20
包覆
降感
physical chemistry
polyaniline
PANI
surface modification
CL-20
coating
sensitivity reduction
