CHINESE JOURNAL OF ENERGETIC MATERIALS
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含能铝粉表面改性技术研究进展
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中国人民解放军61699部队,湖北,枝江,443200

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Surface Modification Technologies of Energetic Aluminum Powders: A Review
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The 61699 Unit of Chinese People′s Liberation Army, Zhijiang, 443200,China

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    摘要:

    铝粉作为常用的含能材料已经在推进剂、火炸药中广泛应用,但其也存在易氧化、易团聚等劣势,导致能量密度降低、点火温度升高、燃速降低等缺点。针对不同的应用需求,采取不同的方式对铝粉表面进行改性、优化能量释放效果是当前国内外研究的热点。本文根据材料在铝粉能量释放时的作用机制,综述了国内外利用含能材料、含氟聚合物、金属氧化物、惰性聚合物、小分子有机物、单质材料六类材料对铝粉表面进行改性的方法和产物性能特点,对不同改性方法的应用场景进行了分析,并展望了铝粉表面改性技术的发展方向:利用含氟聚合物对表面进行初步改性,并进一步利用金属氧化物、含能材料等制备性能更为全面、可调控的复合铝粉,如硝化棉负载n-Al@PVDF等,将是未来一段时间的重点发展方向。

    Abstract:

    Energetic aluminum powders have been widely used in propellants and explosives. However, aluminum powders usually suffer from the drawbacks of aggregation and spontaneous oxidation, which lead to decrease in energy density and burning rate and increase in ignition temperature. Developing energetic performances of aluminum powders by various surface modification technologies according to practical demands is an international hot research topic. Herein, the materials used for surface modification of aluminum powders, including energetic materials, fluoropolymers, metallic oxide, inert polymers, low-molecular-weight organics and elementary substance, were reviewed based on the corresponding reaction mechanisms during energy release. The application scenarios of different modification methods were introduced and the development trends were prospected. Further improving and even controlling the performance of composites of fluoropolymers modified aluminum powders with metal oxides and energetic materials etc. will be a key research direction in the future.

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引用本文

刘勇,白海军,甘巧玉,等.含能铝粉表面改性技术研究进展[J].含能材料, 2020, 28(10):1017-1025. DOI:10.11943/CJEM2019202.
LIU Yong, BAI Hai-jun, GAN Qiao-yu, et al. Surface Modification Technologies of Energetic Aluminum Powders: A Review[J]. Chinese Journal of Energetic Materials, 2020, 28(10):1017-1025. DOI:10.11943/CJEM2019202.

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历史
  • 收稿日期: 2019-07-16
  • 最后修改日期: 2020-03-18
  • 录用日期: 2019-11-08
  • 在线发布日期: 2020-03-16
  • 出版日期: 2020-10-25