Fluoropolymers get increasing attention in energetic materials application due to the high fluorine content. To explore the effect of poly(vinylidene fluoride -co- hexafluoropropylene) (P(VDF-HFP)) on Al/MnO₂ nanothermite, the samples with different contents are prepared and characterized by SEM, TG-DSC, XRD, and their ignition and combustion behavior are tested and recorded. The results show that P(VDF-HFP) as an energetic binder can combine the nanothermite components together, even exist in the gaps. The integrity of energetic materials has been improved. Thermal analysis shows that the addition of P(VDF-HFP) greatly changes the thermal reaction processes, and the exothermic peaks appear early, but the utilization of fuel and oxidizer is not efficient from the XRD results. Furthermore, the appropriate addition of P(VDF-HFP) can directly reduce the ignition energy threshold and increase the combustion time, which is necessary for the potential ignition charge application. The possible reasons for above phenomena are discussed and analyzed. This research provides a reference for improvement of thermite-based ignition charge formulation.

由于氟含量高，含氟聚合物在含能材料应用中越来越受到关注。探讨聚（偏二氟乙烯-共-六氟丙烯）（P（VDF-HFP））对Al/MnO _{2 的影响}采用纳米铝热剂制备不同含量的样品，并通过SEM、TG-DSC、XRD对其进行表征，测试并记录了它们的着火和燃烧行为。结果表明，P(VDF-HFP)作为一种含能粘合剂可以将纳米铝热剂组分结合在一起，甚至存在于间隙中。提高了含能材料的完整性。热分析表明，P(VDF-HFP)的加入极大地改变了热反应过程，放热峰出现较早，但XRD结果表明燃料和氧化剂的利用效率不高。此外，适当添加 P(VDF-HFP) 可以直接降低点火能量阈值并增加燃烧时间，这对于潜在的点火装药应用是必要的。对上述现象的可能原因进行了讨论和分析。