| 周航,甄建伟,杜仕国,李晨.球磨铝/聚四氟乙烯的热性能和失效研究[J].装备环境工程,2022,19(2):39-44. ZHOU Hang,ZHEN Jian-wei,DU Shi-guo,LI Chen.Research on Thermal Properties and Failure of Ball Milled Aluminum/Polytetrafluoroethylene[J].Equipment Environmental Engineering,2022,19(2):39-44. |
| 球磨铝/聚四氟乙烯的热性能和失效研究 |
| Research on Thermal Properties and Failure of Ball Milled Aluminum/Polytetrafluoroethylene |
| 投稿时间：2022-01-15 修订日期：2022-01-26 |
| DOI：10.7643/issn.1672-9242.2022.02.007 |
| 中文关键词: 高能球磨 铝粉 聚四氟乙烯 放热性能 加速老化试验 失效 |
| 英文关键词:high-energy ball milling aluminum powder polytetrafluoroethylene exothermic property accelerated aging test failure |
| 基金项目: |
|
|
| Author | Institution |
| ZHOU Hang | Shijiazhuang Campus, Army Engineering University of PLA, Shijiazhuang 050003, China |
| ZHEN Jian-wei | Shijiazhuang Campus, Army Engineering University of PLA, Shijiazhuang 050003, China |
| DU Shi-guo | Shijiazhuang Campus, Army Engineering University of PLA, Shijiazhuang 050003, China |
| LI Chen | Institute of Chemical Defense, Academy of Military Science, Zhijiang 443200, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 研究高活性铝/聚四氟乙烯(Al/PTFE)含能材料在常温条件下的存贮能力。方法 采用高能球磨法，制备Al/PTFE复合物，对其进行温度加速老化试验。采用差热分析方法，研究该材料在不同老化时间段的放热性能，并对其失效时间进行评估。结果 球磨制备的样品组分间的反应模式为气固相反应。干法球磨制备得到的样品具有较高的放热量和较长的贮存寿命，放热量为1.82 kJ/g，在老化时间4 a以内的放热性能损失不超过20%。湿法球磨制备得到的样品具有很高的反应活性，放热量达到2.86 kJ/g，但是老化1 a后就发生明显失效。结论 以干法球磨的样品放热能力较低，但其能够在更长的时间内保持反应活性，更加适合于长期贮存。 |
| 英文摘要: |
| In order to study the storage capacity of high activity Aluminum/Polytetrafluoroethylene (Al/PTFE) energetic materials at room temperature, Al/PTFE composites were prepared by the method of high-energy ball milling. The accelerated temperature aging test of the prepared Al/PTFE composites was carried out. The exothermic properties of the materials in different aging periods were studied by the differential thermal analysis method, and its failure time was evaluated. The study results suggest that the reaction mode between the samples prepared by ball milling is a gas-solid reaction. The sample prepared by dry ball-milling has high heat release as well as long storage life, and its heat release is 1.82 kJ/g, and the heat release performance loss of the reaction is less than 20% within 4 years of aging. The sample prepared by wet ball-milling has exceptionally high reactivity and a heat release of 2.86 kJ/g, but its obvious failure occurs after one year of aging. The results of samples analysis show that the sample obtained by dry ball-milling has a low exothermic capacity. But it can keep the reactivity at a longer period. The method of dry ball-milling is more suitable for long-term storage. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
