In this study, three fluoro-containing ferrocene compounds (Fc-Fx) with different fluorine and Fc contents were prepared and then be coated on the surface of nanoaluminum (nAl) to increase the combustion performance of nAl and the anti-migration performance of Fc. By removing the aluminium oxide (Al₂O₃) shell and instead constructing a new Fc-Fx shell with a thickness of 5–30 nm on the surface of nAl, the obtained nAl@Fc-Fx nanocomposites showed enhanced performances in i) anti-migration and ii) combustion performances owing to the Al-F interaction and the intimate contact between nAl and Fc-Fx. Among all three nAl@Fc-Fx nanocomposites, nAl@Fc-F2 with the longest fluorine chain could shorten the ignition delay time from 1.83 s to 1.03 s and nAl@Fc-F3 with highest Fc content could decrease the decomposition temperature of ammonium perchlorate to 328 °C. When the nAl@Fc-Fx nanocomposites were applied in the propellants, a shorter migration length (0.1–0.4 cm) was achieved as compared with the physically mixing nAl/Fc compound (3.0 cm), which was beneficial to enhancing their burning performance. This work demonstrated that nAl@Fc-Fx nanocomposites had great potential to be applied in solid rocket propellants.

在这项研究中，制备了三种具有不同氟和Fc含量的含氟二茂铁化合物（Fc-Fx），然后将其涂覆在纳米铝（nAl）的表面上，以提高nAl的燃烧性能和Fc的抗迁移性能。 。通过去除氧化铝（Al ₂ O ₃）壳，并在nAl表面上构建厚度为5–30 nm的新Fc-Fx壳，所获得的nAl @ Fc-Fx纳米复合材料在i）抗迁移和ii）燃烧性能方面表现出增强的性能。 Al-F相互作用以及nAl和Fc-Fx之间的紧密接触。在这三种nAl @ Fc-Fx纳米复合材料中，具有最长氟链的nAl @ Fc-F2可以将点火延迟时间从1.83 s缩短至1.03 s，具有最高Fc含量的nAl @ Fc-F3可以降低高氯酸铵的分解温度到328°C。当nAl @ Fc-Fx纳米复合材料应用于推进剂中时，与物理混合nAl / Fc化合物（3.0 cm）相比，迁移长度较短（0.1-0.4 cm），这有利于增强其燃烧性能。