Thermal Kinetic Performance and Thermal Safety of 3,3’‐Bis‐Oxadiazole‐5,5’‐Bis‐Methylene Dinitrate,Propellants, Explosives, Pyrotechnics

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Thermal Kinetic Performance and Thermal Safety of 3,3’‐Bis‐Oxadiazole‐5,5’‐Bis‐Methylene Dinitrate
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-11-09 , DOI: 10.1002/prep.202000132
Bingbo Li ₁ , Yiming Luo ₁ , Hao Wang ₁ , Ronghui Ju ₁ , Wei Lei ₁ , Mengmeng Zhang ₁

Affiliation

DSC and TG/DTG were performed to investigate the thermal kinetic performance and thermal safety of 3,3’‐bis‐oxadiazole‐5,5’‐bis‐methylene dinitrate (BODN) under a non‐isothermal condition. The results reveal that the thermal behavior of BODN can be divided into three stages including a melting endothermic process and two decomposition exothermic processes. The apparent activation energy (E) and pre‐exponent parameters (A) of the first exothermic decomposition reaction are 147.45 kJ mol⁻¹ and 10^13.77 s⁻¹, and its kinetic equation was obtained from the DSC curves. The self‐accelerating decomposition temperatures (T_SADT), thermal ignition temperatures (T_TIT), and critical temperatures of the thermal explosion (T_b) to evaluate its thermal stability and safety are 166.41 °C, 178.09 °C, and 204.47 °C, respectively. The positive values of free energy of activation (ΔG^≠=135.49 kJ mol⁻¹) indicate that the decomposition process of BODN must proceed under the heating condition.

中文翻译：

3,3'-双-恶二唑-5,5'-双-亚甲基二恶英的热动力学性能和热安全性

进行了DSC和TG / DTG，以研究非等温条件下3,3'-双-恶二唑-5,5'-双亚硝酸二甲酯（BODN）的热动力学性能和热安全性。结果表明，BODN的热行为可分为三个阶段，包括熔融吸热过程和两个分解放热过程。第一次放热分解反应的表观活化能（E）和预指数参数（A）为147.45 kJ mol ^-1和10 ^13.77 s ^-1，其动力学方程由DSC曲线得出。自加速分解温度（T _SADT），热着火温度（T_TIT）和评估其热稳定性和安全性的热爆炸临界温度（T _b）分别为166.41°C，178.09°C和204.47°C。活化自由能的正值（ΔG ^≠ = 135.49 kJ mol ^-1）表明BODN的分解过程必须在加热条件下进行。

更新日期：2020-12-07

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