ABSTRACT Isothermal thermal decomposition method was used to study the thermal behavior of the HMX-based PBX explosive JOL-1. The gas pressure versus time curves of the isothermal decomposition of JOL-1 were obtained within the temperature range of 90°C to 130°C. Kinetic parameters such as activation energy and frequency factor for the thermal decomposition of JOL-1 were obtained using the Arrhenius equation and model-fitting method. The model-fitting method further proved that the isothermal decomposition of JOL-1 at 90°C, 100°C, 110°C, 120°C, and 130°C is consistent with the No. 8 mechanism function, namely, the anti-Jander equation, controlled by 3D diffusion. The storage life of JOL-1 was estimated by the Semenov equation and the extent of reaction reached 0.1–0.4%. Results showed that the effective storage life of JOL-1 at 25°C, 40°C, and 60°C are 68 years, 10 years, 1 year, respectively, when the extent of reaction reached 0.1%.

中文翻译：

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基于 HMX 的 PBX 炸药 JOL-1 的等温热分解

摘要 采用等温热分解方法研究了 HMX 基 PBX 炸药 JOL-1 的热行为。JOL-1 等温分解的气压与时间曲线是在 90°C 到 130°C 的温度范围内获得的。使用阿伦尼乌斯方程和模型拟合方法获得了 JOL-1 热分解的动力学参数，如活化能和频率因子。模型拟合方法进一步证明JOL-1在90°C、100°C、110°C、120°C和130°C的等温分解符合8号机理函数，即抗-Jander 方程，由 3D 扩散控制。JOL-1 的储存寿命由 Semenov 方程估计，反应程度达到 0.1-0.4%。结果表明，JOL-1 在 25°C、40°C、