TKX-50/AP复合微球的制备及性能  

Preparation and Properties of TKX⁃50/AP Composite Microspheres

作　　者：王新飞 杨俊清 赵含笑 王挺辉 郝嘎子 肖磊[1] 姜炜[1] WANG Xin-fei;YANG Jun-qing;ZHAO Han-xiao;WANG Ting-hui;HAO Ga-zi;XIAO Lei;JIANG Wei(National Special Ultrafine Powder Technology Research Center of Nanjing University of Science and Technology,Nanjing 210094,China;School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学国家特种超细粉体技术研究中心,江苏南京210094 [2]南京理工大学机械工程学院,江苏南京210094

出　　处：《含能材料》2025年第2期117-126,共10页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金联合基金(U2141202)。

摘　　要：为获得高能量、低感度和易于储存的新型含能材料,采用喷雾干燥法制备了TKX-50/AP复合微球,探究了不同进料速率对微球的形貌影响,获得了最佳工艺条件,并采用扫描电子显微镜、X射线衍射仪、傅里叶红外光谱仪等表征了样品的形貌及晶型,获得了微球的热分解性能、撞击感度及吸湿性。结果表明:当进料速率为3.6 mL·min^(-1)时样品形貌最佳,球形度为Φ=96.40%,d_(50)=1.33μm,晶体结构不同于简单的TKX-50和AP混合,热分解活化能为184.43 kJ·mol^(-1),特性落高为50.1 cm,吸湿性相对物理混合降低了37%,表现出显著的安全性能。To obtain new energetic materials with high energy,low sensitivity and liable storage,TKX‑50/AP composite microspheres were prepared by spray drying method.The effects of different feed rates on the morphology of composite microspheres were investigated,and the optimum process conditions were obtained.The morphology and crystal form of the samples were characterized by scanning electron microscope,X‑ray diffractometer and Fourier infrared spectrometer.The thermal decomposition performance,impact sensitivity and hygroscopicity of the microspheres were also studied.Results show that the samples are spherical particles with sphericity ofΦ=96.40%and d_(50)=1.33μm at the feed rate of 3.6 mL·min^(-1).The crystal structure is different from that of mechanical mixing of TKX‑50 and AP.The thermal decomposition activation energy is 184.43 kJ·mol^(-1),the characteristic drop is 50.1 cm,and the hygroscopicity is 37%lower than that of the physical mixing,showing excellent safety performance.

关 键 词：TKX-50/AP复合微球 喷雾干燥法 吸湿性 机械感度 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]