Graphene iron tannate and graphene iron gallate nanocomposites (G-D-Fe and G-M-Fe) were designed, synthesized and characterized to deal with the performance requirement of AP-HTPB propellent. Effects of the G-D-Fe and G-M-Fe on the thermal decomposition of AP, laser ignition, combustion and safety characteristics of AP-HTPB propellant were explored. By taking Catocene as the benchmark (156.80 mJ), the G-D-Fe improves the safety performance of propellant, and the ignition energy () is increased by 17.25 mJ. Besides, the G-D-Fe and G-M-Fe have positive effects on enhancing the burning rate and the reducing the pressure exponent of propellant, and the influence of G-D-Fe is more significant. The burning rate enhances from 13.87 to 16.92 mm·s at 15 MPa and the pressure exponent reduces from 0.47 to 0.32 in 4∼15 MPa after the introduction of G-D-Fe. The catalytic mechanism of G-D-Fe were analyzed on the basis of flame morphology, combustion wave structure, FTIR and gas-phase FTIR-MS. The outstanding catalytic property of G-D-Fe is due to its promotion effect on AP pyrolysis and the formation of stable products, which is conductive to the intense reactions of gas products and the thermal transmission between burning surface and gas phase, and reflecting in the significant enhanced burning rate.

中文翻译：

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新型石墨烯铁有机纳米复合材料用于增强 AP-HTPB 推进剂的燃烧和安全性能

设计、合成并表征了石墨烯单宁铁和石墨烯没食子酸铁纳米复合材料（GD-Fe 和 GM-Fe），以满足 AP-HTPB 推进剂的性能要求。探讨了GD-Fe和GM-Fe对AP热分解、激光点火、AP-HTPB推进剂燃烧及安全特性的影响。以Catocene为基准（156.80 mJ），GD-Fe提高了推进剂的安全性能，点火能（）提高了17.25 mJ。此外，GD-Fe和GM-Fe对提高推进剂燃烧速率和降低推进剂压力指数具有积极作用，其中GD-Fe的影响更为显着。引入GD-Fe后，15 MPa下的燃烧速率从13.87提高到16.92 mm·s，4～15 MPa下的压力指数从0.47降低到0.32。基于火焰形貌、燃烧波结构、FTIR和气相FTIR-MS分析了GD-Fe的催化机理。 GD-Fe优异的催化性能是由于其对AP热解和稳定产物形成的促进作用，有利于气体产物的剧烈反应以及燃烧表面与气相之间的热传递，并体现在显着的催化性能上。提高燃烧速度。