| 沈慧,许冲,张沛心,刘永强,许鹏.AP/HTPB底排推进剂降压熄火试样的热分解研究[J].装备环境工程,2022,19(3):46-51. SHEN Hui,XU Chong,ZHANG Pei-xin,LIU Yong-qiang,XU Peng.Thermal Decomposition of Extinguished AP/HTPB Base Bleed Propellant under Condition of Transient Depressurization[J].Equipment Environmental Engineering,2022,19(3):46-51. |
| AP/HTPB底排推进剂降压熄火试样的热分解研究 |
| Thermal Decomposition of Extinguished AP/HTPB Base Bleed Propellant under Condition of Transient Depressurization |
| 投稿时间：2021-12-13 修订日期：2022-03-14 |
| DOI：10.7643/issn.1672-9242.2022.03.007 |
| 中文关键词: 热分解 DSC 降压熄火 AP/HTPB底排推进剂 动力学参数 |
| 英文关键词:thermal decomposition DSC extinguished under condition of transient depressurization AP/HTPB base bleed propellant kinetic parameters |
| 基金项目: |
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| Author | Institution |
| SHEN Hui | Haiying Enterprise Group Co., Ltd., Wuxi 214000, China |
| XU Chong | Haiying Enterprise Group Co., Ltd., Wuxi 214000, China |
| ZHANG Pei-xin | Haiying Enterprise Group Co., Ltd., Wuxi 214000, China |
| LIU Yong-qiang | Haiying Enterprise Group Co., Ltd., Wuxi 214000, China |
| XU Peng | Haiying Enterprise Group Co., Ltd., Wuxi 214000, China |
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| 中文摘要: |
| 为了掌握AP/HTPB底排推进剂降压熄火后的热分解特性，采用半密闭爆发器制备AP/HTPB底排推进剂降压熄火的试样，利用DSC方法进行微量样品在3种升温速率下的热分解试验，并与AP/HTPB原样测试结果进行对比分析。结果表明，在相同升温速率下，降压熄火后的AP/HTPB底排推进剂的DSC曲线中，放热峰的形状发生了变化，由原样的“M型”变成了“倒V型”，且峰温比原样的放热峰温低，计算出的吸热峰活化能比原样的活化能增大了7.2%~62.5%，但放热峰活化能却比原样低14%~21%。 |
| 英文摘要: |
| In order to analyze the characteristics of extinguished AP/HTPB base bleed propellant under condition of transient depressurization, the extinguished AP/HTPB base bleed propellant samples were prepared by semi-closed bomb. Thermal decomposition experiments of the micro samples were carried out by using DSC at three heating rates, the experimental results were comparatively analyzed with the original samples. The results show that at the same heating rate, the shape of exothermic peak in the DSC curve of the extinguished AP/HTPB base bleed propellant under condition of transient depressurization changed from the "M-type" to "inverted V-shaped", and the peak temperatures is lower than the exothermic peak temperature of the original sample. The activation energy of endothermic peak is 7.2%~62.5% higher than that of the original sample, but the activation energy of the exothermic peak is 14%~21% lower than that of the original sample. |
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