摘要
目的 研究推进剂含能固体颗粒粒度、形貌与感度特性的相关性。方法 采用激光粒度分析仪、扫描电镜、摩擦、撞击、静电感度仪、爆发点测定仪,对推进剂主要含能固体颗粒AP、RDX、AL的粒度及感度进行测试研究,考察不同规格粒度的AP、RDX的机械、静电及热感度,对AP、RDX、AL的混合物料也进行感度测试。结果 AP的摩擦、静电感度随着粒度的减小而增加。粗AP(40~60目、60~80目及100~140目)对撞击感度不敏感,对于粉碎细料(1~18μm),表现出一定的敏感性。热感度与粒度的关系,对于5 s爆发点,其结果均大于400℃。对于普通RDX,2种不同粒度的RDX对不同激源均表现出较高的敏感性,高品质RDX的感度特性明显优于普通RDX。AP、RDX、AL混合后,感度特性发生了一定的变化。结论 细料AP机械感度与热感度较高,RDX粒度越小,摩擦、撞击感度下降,3种粒度RDX的静电感度相当,AP、RDX和AL粉混合时仍保持较高的摩擦感度。
The paper intends to study the correlation between particle size, morphology and sensitivity characteristics of propellant energetic solid particles. By using Laser Particle Size Analyzer(LPSA), Scanning Electron Microscope(SEM), Friction Sensitivity Meter, Impact Sensitivity Meter, Electrostatic Sensitivity Meter and Burst Point Tester, the particle size and sensitivity of the main propellant solid particles AP, RDX and AL were tested and studied to investigate the mechanical, electrostatic, and thermal susceptibility of AP and RDX with different size specifications and test the thermal sensitivities for the mixture of AP, RDX and AL. The results showed that the friction and electrostatic sensitivity of AP increased with the decrease of particle size;the coarse AP(40-60 mesh, 60-80 mesh and 100-140 mesh) is insensitive to the impact sensitivity, but shows a certain sensitivity to crushed fine material(1-18 μm);the relationship between thermal sensitivity and particle size, for the 5 s burst point, the results are all greater than 400 ℃. For common RDX, two kinds of RDX with different particle sizes show high sensitivity to different excitation sources;the sensitivity characteristics of high-quality RDX are obviously better than that of common RDX. After mixing between AP, RDX and AL, the sensitivity characteristics have changed to a certain extent. The fine material AP has higher mechanical and thermal sensitivity;the smaller the particle size of RDX, the lower the friction and impact sensitivity;the electrostatic sensitivity of the three particle sizes of RDX is equivalent;AP, RDX and AL powder still maintain a high friction sensitivity when mixed.
作者
刘晋湘
陈江波
王斐
张维海
李芳芳
杨艳婷
张军
邓海娟
李艳
袁丽
LIU Jin-xiang;CHEN Jiang-bo;WANG Fei;ZHANG Wei-hai;LI Fang-fang;YANG Yan-ting;ZHANG Jun;DENG Hai-juan;LI Yan;YUAN Li(Xi'an North Huian Chemical Industry Company,Xi'an,710302,China)
出处
《装备环境工程》
CAS
2022年第10期36-42,共7页
Equipment Environmental Engineering
关键词
AP
RDX
AL
粒度
感度
混合物料
AP
RDX
AL
particle size
sensitivity
mixed material
