The multi-walled carbon nanotubes were prepared into nanopaper with three-dimensional network structure by ultrasonic dispersion technology and suction filtration, and then implanted into Cf / PEEK composite materials by mold pressing process. The microstructure, tensile strength, flexural strength and abrasion resistance of the composites were tested. The influence of the nanopaper on the properties of composites were discussed and analyzed. After implanting a well- dispersed PANI-functionalized nanopaper layer, the tensile strength and bending strength of the 0.1 mm nanopaper composite increased by 20.6% and 26.6% respectively, which meant that high load is needed to cause the composite to break. There are pores in the interface of 0.2 mm nanopaper composite after hot pressing, and the improvement of mechanical properties is not significant. Compared with the pure Cf / PEEK composite, the friction coefficient of 0.1 mm nanopaper composite is reduced by 0.05, and the wear rate is reduced by 26%. This should be ascribed to that the self-lubricating property of MWCNTs. The three-dimensional network structure of nanopaper with good thermal conductivity can disperse the heat generated in the friction process and reduce the contact area between the Si₃N₄ ball and the resin matrix.

通过超声分散技术和吸滤技术将多壁碳纳米管制备成具有三维网络结构的纳米纸，然后通过模压工艺将其植入Cf / PEEK复合材料中。测试了复合材料的微观结构，拉伸强度，弯曲强度和耐磨性。讨论并分析了纳米纸对复合材料性能的影响。植入分散良好的PANI官能化纳米纸层后，0.1 mm纳米纸复合材料的拉伸强度和弯曲强度分别增加了20.6％和26.6％，这意味着需要高负载才能使复合材料破裂。热压后0.2 mm纳米纸复合材料的界面上有孔，机械性能的改善不明显。与纯Cf / PEEK复合材料相比，0.1 mm纳米纸复合材料的摩擦系数降低了0.05，磨损率降低了26％。这应该归因于MWCNT的自润滑性能。具有良好导热性的纳米纸的三维网络结构可以分散摩擦过程中产生的热量并减少Si之间的接触面积₃ N ₄球和树脂基质。