Highly Thermal Stable TATB-based Aluminized Explosives Realizing Optimized Balance between Thermal Stability and Detonation Performance
Highly Thermal Stable TATB-based Aluminized Explosives Realizing Optimized Balance between Thermal Stability and Detonation Performance
复制标题
高热稳定性TATB基含铝炸药实现热稳定性和爆炸性能之间的优化平衡
DOI：
10.1002/prep.201700206
复制
发表时间：
2017-12-01
影响因子：
1.8
通讯作者：
Liu, Shijun
中科院分区：
文献类型：
--
作者：
Gong, Feiyan;Guo, Hu;Liu, Shijun
以1，3，5-三氨基-2，4，6-三硝基苯（TATB）、铝粉和聚合物粘结剂为原料，制备了一系列TATB基含铝炸药。采用烤燃法、恒温量热法、电测法和锰铜压阻法对TATB基含铝（TATB/Al）炸药的热稳定性、爆热、爆速和爆压进行了系统研究。所选择的PBX-3（70wt%TATB/25wt%Al/5wt%氟树脂）在热稳定性和爆轰性能之间达到了最佳平衡，热失控温度约为583 K。 实验和数值模拟结果表明，TATB基含铝炸药的热点火发生在圆柱体边缘。根据谢梅诺夫的热爆炸理论和炸药的热分解动力学参数，计算了PBX-3的临界热失控温度，与实验值吻合较好。
In this work, a series of TATB-based aluminized explosives were formulated from 1, 3, 5-triamino-2, 4, 6-trinitrobenzene (TATB), aluminum powders and polymeric binders. The thermal stability, heat of detonation, detonation velocity and pressure of the TATB based aluminized (TATB/Al) explosives were systematically investigated by cook-off, constant temperature calorimeter, electrometric method and manganin piezo resistance gauge, respectively. The selected PBX-3 (70 wt% TATB/25 wt% Al/5 wt% fluorine resin) achieved optimized balance between thermal stability and detonation performance, with the thermal runaway temperature around 583 K. The thermal ignition of TATB-based aluminized explosive occurred at the edge of the cylinder according to the experimental and numerical simulations. Moreover, the critical thermal runaway temperature for PBX-3 was calculated based on the Semenov's thermal explosion theory and the thermal decomposition kinetic parameters of the explosive, which was consistent with the experimental value.