| Nitrogen-rich energetic polymer powered aluminum particles with enhanced reactivity and energy content | |
Li, Yaru1; Ren, Hui1; Wu, Xinzhou1; Wang, Huixin1; Yu XL(余西龙)2
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| 通讯作者 | Ren, Hui(renhui@bit.edu.cn) |
| 发表期刊 | SCIENTIFIC REPORTS
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| 2022-05-25 | |
| 卷号 | 12期号:1页码:12 |
| ISSN | 2045-2322 |
| 摘要 | Aluminum particles are of significant interest in enhancing the energy release performance of explosives. One of the major impediments to their use is that Al2O3 shell significantly decreases overall performance. To address this issue, we investigate creating aluminum particles with a glycidyl azide polymer (GAP) coating to improve their reactivity while retaining their energy content. We found that the aluminum particles were coated with a GAP layer of thickness around 8.5 nm. The coated aluminum particles were compared to non-coated powder by the corresponding reactivity parameters obtained from simultaneous differential scanning calorimetry, thermal gravimetric analysis, coupled with mass spectral and infrared spectral analyses. Besides, the comparison on the energy content was also conducted based on P-t tests and a laser-induced air shock from energetic materials (LASEM) technique. It was found that GAP shifted the oxidation onset of aluminum particles to a lower temperature by similar to 10 degrees C. Besides, the oxidation activation energy of aluminum particles was also reduced by similar to 15 kJ mol(-1). In return, aluminum particles reduced the activation energy of the second stage decomposition of the GAP by 276 kJ mol(-1). And due to the synergistic effect between aluminum and GAP, the decomposition products of GAP were prone to be oxycarbide species rather than carbonitride species. In addition, the P-t test showed the peak pressure and pressurization rate of GAP coated aluminum particles were separately 1.4 times and 1.9 times as large as those of non-coated aluminum particles. Furthermore, the LASEM experiment suggested the shock wave velocity of the GAP coated aluminum particles was larger than that of non-coated aluminum particles, and the largest velocity difference for them could be 0.6 km s(-1). This study suggests after coating by GAP, the aluminum particles possess enhanced reaction performance, which shows potential application value in the fields of aluminized explosives and other energetic fields. |
| DOI | 10.1038/s41598-022-12949-0 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000802776400055 |
| 关键词[WOS] | GLYCIDYL AZIDE POLYMER ; THERMAL-DECOMPOSITION ; PERFORMANCE ; LASER ; NANOPARTICLES ; FTIR ; GAP ; TEMPERATURE ; PROPELLANT ; COMBUSTION |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 资助项目 | National Natural Science Foundation of China[11832006] ; National Natural Science Foundation of China[U1530262] ; National Natural Science Foundation of China[21975024] |
| 项目资助者 | National Natural Science Foundation of China |
| 论文分区 | 二类/Q1 |
| 力学所作者排名 | 3+ |
| RpAuthor | Ren, Hui |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/89649 |
| 专题 | 高温气体动力学国家重点实验室 |
| 作者单位 | 1.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yaru,Ren, Hui,Wu, Xinzhou,et al. Nitrogen-rich energetic polymer powered aluminum particles with enhanced reactivity and energy content[J]. SCIENTIFIC REPORTS,2022,12,1,:12. |
| APA | Li, Yaru,Ren, Hui,Wu, Xinzhou,Wang, Huixin,&余西龙.(2022).Nitrogen-rich energetic polymer powered aluminum particles with enhanced reactivity and energy content.SCIENTIFIC REPORTS,12(1),12. |
| MLA | Li, Yaru,et al."Nitrogen-rich energetic polymer powered aluminum particles with enhanced reactivity and energy content".SCIENTIFIC REPORTS 12.1(2022):12. |
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