Fluoride coating can reduce the ignition temperature, enhance the burning rate and inhibit the agglomeration of aluminum powder. However, the addition of non-energetic fluoride can reduce the energy of aluminum powder. In this study, for the first time, 3-Perfluorohexyl-1, 2-epoxypropane (PFHP) was coated on the surface of aluminum powder, which reacted with glycidyl azide polymer (GAP) in situ to form core-shell Al@PFHP@GAP. Compared with raw aluminum powder, Al@PFHP@GAP not only significantly reduced ignition temperature (about 150 ℃), but also greatly improved the combustion efficiency (from 87.7% to 97.6%). Besides, the heat of combustion was also greatly increased by 6.3%, compared with that of raw aluminum powder. Such performances were outstanding among the existing coated Al. In addition, the formation of coating shell effectively improved the hydrophobicity and corrosion resistance of the aluminum powder. In a word, our derived Al@PFHP@GAP provided a novel rationale for aluminum powder with greatly enhanced combustion performance.

氟化物涂层可以降低着火温度，提高燃烧速度，抑制铝粉的团聚。但是，添加非能量氟化物会降低铝粉的能量。本研究首次将 3-Perfluorohexyl-1, 2-epoxypropane (PFHP) 包覆在铝粉表面，与缩水甘油基叠氮化物聚合物 (GAP)发生原位反应。形成核壳Al@PFHP@GAP。与原铝粉相比，Al@PFHP@GAP不仅显着降低了着火温度（约150℃），而且大大提高了燃烧效率（从87.7%提高到97.6%）。此外，与原铝粉相比，燃烧热也大幅提高了6.3%。这种性能在现有的涂层铝中是突出的。此外，涂层壳的形成有效地提高了铝粉的疏水性和耐腐蚀性。总之，我们衍生的 Al@PFHP@GAP 为铝粉的燃烧性能大大提高提供了新的理论基础。