School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
J Hazard Mater. 2017 Sep 15;338:208-217. doi: 10.1016/j.jhazmat.2017.05.040. Epub 2017 May 22.
Dihydroxylammonium 5,5'- bistetrazole-1,1'-diolate (TKX-50) was used to prepare TKX-50-based polymer bonded explosive (PBX) for the first time in this study. The thermal stabilities and the kinetic parameters of TKX-50 and TKX-50-based PBX were compared via Differential Scanning Calorimetry (DSC), Thermal Gravity-Differential Thermal Gravity (TG-DTG) and Accelerating Rate Calorimeter (ARC). Furthermore, in order to know about their thermal safeties comprehensively, an advanced thermal analysis program based on Friedman method was employed to calculate the thermal safety parameters for TKX-50 and its PBX. With its help, two important safety parameters (time to maximum rate under adiabatic conditions (TMR) and self-accelerating decomposition temperature (SADT)) for the two energetic materials were calculated and discussed. Finally, based on the safety parameters, effects of storage conditions and ambient temperatures on the thermal explosions of TKX-50 and TKX-50-based PBX were further studied by using finite element analysis (FEA).
二羟胺合 5,5'-双四唑-1,1'-二氧代（TKX-50）首次被用于制备基于 TKX-50 的聚合物粘结炸药（PBX）。通过差示扫描量热法（DSC）、热重-差热重（TG-DTG）和加速率量热计（ARC）比较了 TKX-50 和基于 TKX-50 的 PBX 的热稳定性和动力学参数。此外，为了全面了解它们的热安全性，采用基于 Friedman 方法的先进热分析程序计算了 TKX-50 和 PBX 的热安全参数。借助该程序，计算并讨论了这两种含能材料的两个重要安全参数（绝热条件下达到最大速率的时间（TMR）和自加速分解温度（SADT））。最后，基于安全参数，通过有限元分析（FEA）进一步研究了储存条件和环境温度对 TKX-50 和基于 TKX-50 的 PBX 热爆炸的影响。
