Novel polyimide/fluorinated graphene oxide (PI/FGO) nanocomposites with outstanding mechanical, thermal, and tribological properties were obtained using FGO nanosheets which were successfully fabricated by simple hydrothermal reaction. FGO exhibited distinguished interface adhesion with PI matrix due to covalent bonds, resulting improved mechanical and wear resistance of PI/FGO nanocomposites. Wherein, PI/FGO‐0.5 nanocomposite demonstrated conspicuous tribological performance accompanied with 33.1% decrease of friction coefficient and 80.8% reduction of wear rate compared with pure PI under dry friction. Notably, PI/FGO nanocomposites manifested better wear resistance under seawater than that under dry friction, illustrating its great potentiality as high wear‐resistant material suitable for ocean environment.

中文翻译：

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氟化氧化石墨烯增强聚酰亚胺纳米复合材料的高机械摩擦性能

使用通过简单水热反应成功制备的FGO纳米片，获得了具有优异机械，热学和摩擦学性能的新型聚酰亚胺/氟化石墨烯（PI / FGO）纳米复合材料。由于共价键，FGO表现出与PI基质的出色界面粘合性，从而提高了PI / FGO纳米复合材料的机械强度和耐磨性。其中，PI / FGO-0.5纳米复合材料具有明显的摩擦学性能，与干摩擦下的纯PI相比，摩擦系数降低了33.1％，磨损率降低了80.8％。值得注意的是，PI / FGO纳米复合材料在海水下比在干摩擦下表现出更好的耐磨性，这说明它具有作为适用于海洋环境的高耐磨材料的巨大潜力。