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Efficient construction of Al/F microspheres in Pickering emulsion to regulate combustion reactivity

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Abstract

Aluminum (Al) fluoropolymer composites are widely used in the field of energetic materials. At present, it is a research hotspot to improve the agglomeration of nano-aluminum powder in fluoropolymer and make micro-nano-Al/fluorine rubber (F2601) composites. In this study, it was the first step to modify the surface of nano-aluminum (n-Al) powders, and then Al/F2601 composite microspheres were prepared by Pickering emulsion. The effects of oil–water ratio, solid content and fluorine–aluminum ratio on the stability of the emulsion were investigated. Al/F2601 microspheres with particle sizes of about ≤ 50 μm and different surface pores were prepared by controlling various conditions, which appeared the thermal decomposition peak between 485.5 °C and 524.9 °C. The combustion process of samples in the air was recorded by a high-speed camera, the composites with different F2601 contents burn stably and show a clear pattern of combustion velocity, and the maximum linear combustion velocity is up to 30.7 cm s−1.

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Authors and Affiliations

  1. Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang, 621010, People’s Republic of China

    Min Yang, Dengzhao Gao, Tao Wen, ** Guo

  2. Institute of NBC Defence, Bei**g, 100081, People’s Republic of China

    Jun Guo

Authors
  1. Min Yang
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  2. Dengzhao Gao
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  3. Tao Wen
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  4. Jun Guo
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  5. **ngquan Zhang
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  6. Qian Wang
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  7. Chang** Guo
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Contributions

MY was involved in writing—original draft and investigation; DG contributed to methodology, data curation, and writing—review and editing; TW was involved in data curation; JG contributed to data curation and formal analysis; XZ was involved in data curation and resources; QW contributed to data curation, validation, and resources; CG was involved in conceptualization, resources, and project administration.

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Correspondence to Qian Wang or Chang** Guo.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Yang, M., Gao, D., Wen, T. et al. Efficient construction of Al/F microspheres in Pickering emulsion to regulate combustion reactivity. J Mater Sci 59, 2828–2840 (2024). https://doi.org/10.1007/s10853-024-09371-4

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  • DOI: https://doi.org/10.1007/s10853-024-09371-4

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