Friction and wear properties of polyamide (PA) materials can be improved by graphite (Gr) due to its superlubricity. For further enhancing the ultimate properties of composites, the interfacial adhesion between Gr and PA has already attracted growing attention, while the contribution of Gr arrangement is often ignored. In this work, the interfacial adhesion was improved by π-π interactions between Gr and 1,3-Bis(4,5-dihydro-2-oxazolyl)benzene (BOB) functionalized PA6 via reactive extrusion. Moreover, the highly oriented structure of Gr was achieved by the strong extensional and shearing field. Experimental results indicated that BOB functionalized PA6 with 20 wt% highly oriented Gr (PA6-BOB/HOGr20) displayed excellent balanced performance. Compared with pure PA6, the coefficient of friction (COF) and specific wear rate of the PA6-BOB/HOGr20 composite were reduced by nearly 42% and 46%, respectively. Furthermore, its in-plane thermal conductivity (TC) reached as high as 2.14 W/(m K). Due to the low COF and high TC, the tribo-surface temperature was consistently lower than its glass transition temperature (T_g) under harsh pressure-velocity (PV) conditions of this experiment. In addition, the PA6-BOB/HOGr20 composite still has high ductility, and the elongation at break reaches 150%. This work provides a facile and environmentally friendly method for designing high-performance wear-resistant composites, which can be used as linear guide rail, liner, and linear bearing in industrial applications.

石墨 (Gr) 的超润滑性可以改善聚酰胺 (PA) 材料的摩擦和磨损性能。为了进一步提高复合材料的最终性能，Gr和PA之间的界面粘附性已经引起了越来越多的关注，而Gr排列的贡献往往被忽视。在这项工作中，通过反应挤出，Gr 和 1,3-双(4,5-二氢-2-恶唑基)苯 (BOB) 官能化 PA6 之间的 π-π 相互作用提高了界面粘附性。此外，Gr的高度取向结构是由强的拉伸和剪切场实现的。实验结果表明，具有 20 wt% 高取向 Gr (PA6-BOB/HOGr20) 的 BOB 功能化 PA6 表现出优异的平衡性能。与纯PA6相比，PA6-BOB/HOGr20 复合材料的摩擦系数 (COF) 和比磨损率分别降低了近 42% 和 46%。此外，其面内热导率 (TC) 高达 2.14 W/(m K)。由于低 COF 和高 TC，摩擦表面温度始终低于其玻璃化转变温度（T_g ) 在本实验的苛刻压力-速度 ( PV ) 条件下。此外，PA6-BOB/HOGr20复合材料仍具有较高的延展性，断裂伸长率达到150%。该工作为设计高性能耐磨复合材料提供了一种简便、环保的方法，可在工业应用中用作直线导轨、衬套和直线轴承。