| 氢化锆对太安空中爆炸及热安全性能影响的研究* |
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| 引用本文： | 薛冰,黎江梁,林谋金,马宏昊,蒲传金,刘向前.氢化锆对太安空中爆炸及热安全性能影响的研究*[J].中国安全生产科学技术,2022,18(9):147-153. |
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| 作者姓名： | 薛冰 黎江梁 林谋金 马宏昊 蒲传金 刘向前 |
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| 作者单位： | （1.西南科技大学 环境与资源学院，四川 绵阳 621010；2.西南科技大学 工程材料与结构冲击振动四川省重点实验室，四川 绵阳 621010；3.中国科学技术大学 近代力学系，安徽 合肥 230027） |
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| 基金项目： | * 基金项目: 国家自然科学基金项目（11802255，12172313，51874267）；工程材料与结构冲击振动四川省重点实验室开放基金项目(18kfgk15) |
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| 摘 要： | 为研究氢化锆对太安空中爆炸及热安全性的影响，分别对氢化锆/太安混合炸药（ZrH2/PETN）和太安单质炸药开展空中爆炸实验和热分析实验，得到相应的压力时程曲线和TG、DSC热分解曲线。研究结果表明:氢化锆的添加会降低混合炸药的压力峰值，但能显著提高其正相作用时间，氢化锆含量为10%、20%时，氢化锆/太安混合炸药的正相冲量与太安相当。同时与纯太安相比，氢化锆/太安混合组分的最大质量损失速率下降约51.07%~60.04%，热爆炸临界温度及自加速分解温度最大提高约8.78%和9.93%，但混合组分中氢化锆的加入并未改变太安的热分解机理，说明氢化锆作为惰性热稀释剂能够改善其热安全性。
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| 关 键 词： | 氢化锆 太安 空中爆炸 热安全性 混合炸药 |
Study on influence of zirconium hydride on air explosion and thermal safety performance of PETN |
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| XUE Bing,LI Jiangliang,LIN Moujin,MA Honghao,PU Chuanjin,LIU Xiangqian.Study on influence of zirconium hydride on air explosion and thermal safety performance of PETN[J].Journal of Safety Science and Technology,2022,18(9):147-153. |
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| Authors: | XUE Bing LI Jiangliang LIN Moujin MA Honghao PU Chuanjin LIU Xiangqian |
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| Affiliation: | (1.School of Resources and Environment,Southwest University of Science and Technology,Mianyang Sichuan 621010,China;2.Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province,Southwest University of Science and Technology,Mianyang Sichuan 621010,China;3.Department of Modern Mechanics,University of Science and Technology of China,Hefei Anhui 230027,China) |
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| Abstract: | To study the influence of zirconium hydride on the explosion and thermal safety performance of pentaerythrite tetranitrate (PETN),the air explosion and thermal analysis experiments of zirconium hydride/PETN composite explosives (ZrH2/PETN) and PETN single compound explosive were carried out respectively,and the corresponding pressure-time history curves and TG,DSC thermal decomposition curves were obtained.The results showed that the addition of zirconium hydride reduced the peak overpressure of the composite explosives,whereas,the positive phase duration increased significantly.When the zirconium-hydride contents were 10% and 20%,the positive phase impulse of zirconium hydride/PETN composite explosives was equivalent to that of PETN.Compared with pure PETN,the maximum mass loss rate of zirconium hydride/PETN decreased by 51.07%~60.04%,and the thermal explosion critical temperature and self-accelerating decomposition temperature maximally increased by 8.78% and 9.93% respectively.However,the addition of zirconium hydride in the mixed component did not change the thermal decomposition mechanism of PETN,which indicated that zirconium hydride as an inert thermal diluent can improve its thermal safety. |
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| Keywords: | zirconium hydride pentaerythrite tetranitrate (PETN) air explosion thermal safety composite explosive |
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