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Effect of 2,4,6‐Triamino‐3,5‐Dinitropyridine‐1‐Oxide on the Properties of 1,3,5‐Trinitro‐1,3,5‐Triazinane‐based PBX Explosives
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2021-02-12 , DOI: 10.1002/prep.202000278
Zhiwei He 1 , Tao Meng 1 , Yang Wang 1 , Ziru Guo 1 , Feng Liu 1 , Zuliang Liu 2
Affiliation  

In the design and preparation of polymer‐bonded explosives (PBX), the energetic systems possessing the characteristics of high energy output and low sensitivity are always preferred for researchers. The integration of high explosives and an energetic passivator is considered to be the most useful method in achieving this object. Herein, to explore the effect of 2,4,6‐triamino‐3,5‐dinitropyridine‐1‐oxide (TANPyO) on the detonation properties and mechanical safety of 1,3,5‐trinitro‐1,3,5‐triazinane (RDX)‐based PBX, two methods including direct mixing and crystallization coating were utilized to prepare main explosives, followed by the solvent suspension distillation method to obtain relevant composites. The morphology, mechanical sensitivity, and detonation velocity of as‐prepared samples were tested and characterized, as well as armor‐piercing ability. Results show that TANPyO plays a positive role in increasing the mechanical safety of RDX‐based PBX and is reflected by the 4 %‐56 % reduction in explosion probability than that of pure RDX. Moreover, the prepared samples using the crystallization coating method exhibit better performances in detonation velocity and perforation ability than the direct mixing method. These differences reach the peak when the mass ratio of RDX and TANPyO is 1 : 1. In that situation, the reduced values of explosion probability are 20 % (impact sensitivity) and 8 % (friction sensitivity) and the increasing detonation velocity is 309 m ⋅ s−1. These results demonstrate that the integration of TANPyO and the crystallization coating method is a promising way of adjusting the properties of RDX‐based PBX.

中文翻译:

2,4,6-三氨基-3,5-二硝基吡啶-1-氧化物对1,3,5-三硝基-1,3,5-三嗪烷类PBX炸药性能的影响

在聚合物粘结炸药(PBX)的设计和制备中,具有高能量输出和低灵敏度特性的高能系统始终是研究人员的首选。将高炸药和高能钝化剂结合在一起被认为是实现该目的最有用的方法。本文旨在探讨2,4,6-三氨基-3,5-二硝基吡啶-1-氧化物(TANPyO)对1,3,5-三硝基-1,3,5-三嗪烷的爆轰性能和机械安全性的影响基于(RDX)的PBX使用直接混合和结晶涂层这两种方法来制备主要炸药,然后采用溶剂悬浮蒸馏法来获得相关的复合材料。测试并表征了所制备样品的形貌,机械敏感性和爆轰速度,以及穿甲能力。结果表明,TANPyO在提高基于RDX的PBX的机械安全性方面发挥了积极作用,其爆炸概率比纯RDX降低了4%-56%,这反映了这一点。此外,与直接混合法相比,使用结晶涂层法制备的样品在爆炸速度和穿孔能力方面表现出更好的性能。当RDX与TANPyO的质量比为1:1时,这些差异达到峰值。在这种情况下,爆炸概率的降低值分别为20%(撞击敏感性)和8%(摩擦敏感性),并且爆炸速度增加为309 m s 此外,与直接混合法相比,使用结晶涂层法制备的样品在爆炸速度和穿孔能力方面表现出更好的性能。当RDX与TANPyO的质量比为1:1时,这些差异达到峰值。在这种情况下,爆炸概率的降低值分别为20%(撞击敏感性)和8%(摩擦敏感性),并且爆炸速度增加为309 m s 此外,与直接混合法相比,使用结晶涂层法制备的样品在爆炸速度和穿孔能力方面表现出更好的性能。当RDX与TANPyO的质量比为1:1时,这些差异达到峰值。在这种情况下,爆炸概率的降低值分别为20%(撞击敏感性)和8%(摩擦敏感性),并且爆炸速度增加为309 m s-1。这些结果表明,TANPyO和结晶涂层方法的集成是调节基于RDX的PBX性能的一种有前途的方法。
更新日期:2021-03-31
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