Objective: In this work, graphene (Gr) or/and Cu particles are used to improve the thermal and mechanical properties of epoxy resin.

Methods: Various contents of Gr powder (0.1, 0.3, and 0.5 wt%), and Cu powder (10, 30, and 50 wt%) were loaded to epoxy to form Gr/epoxy and Cu/epoxy composites, respectively. In addition, hybrids epoxy/Cu/Gr samples were prepared with a selection of the lowest (0.1 and 10) and the highest (0.5 and 50) ratios of Gr, and Cu, respectively.

Results: The thermal conductivity increased with the increasing weight ratio of Gr and Cu as compared to the pure epoxy. The thermogravimetric analysis (TGA) of epoxy composites and hybrid composites revealed an improvement in the thermal stability. In addition, the mechanical properties such as hardness shore D and the wear resistance were enhanced for both the epoxy composites and hybrids composites. However, the Ep+0.5wt%Gr+50wt%Cu hybrid composite was found to have the maximum hardness 84, with the thermal conductivity of 3.84 W/m.K. It showed the lowest wear resistance 2.7×10^-6 mm³/Nm at loading 10 N.

Conclusion: The hybrid composite containing 0.5wt%Gr and 50wt%Cu shows the maximum hardness and thermal conductivity, as well as the lowest wear resistance when compared to other composites. The physical properties of the hybrid composite can be controlled by the host blend, and hence the morphology, and interfacial characteristics.

目的：在这项工作中，石墨烯（Gr）或/和铜颗粒用于改善环氧树脂的热性能和机械性能。

方法：将各种含量的 Gr 粉（0.1、0.3 和 0.5 wt%）和 Cu 粉（10、30 和 50 wt%）分别加载到环氧树脂中以形成 Gr/环氧树脂和 Cu/环氧树脂复合材料。此外，分别选择最低（0.1 和 10）和最高（0.5 和 50）比率的 Gr 和 Cu 制备混合环氧树脂/Cu/Gr 样品。

结果：与纯环氧树脂相比，热导率随着 Gr 和 Cu 重量比的增加而增加。环氧树脂复合材料和混合复合材料的热重分析 (TGA) 显示热稳定性有所提高。此外，环氧树脂复合材料和混合复合材料的机械性能，如硬度 Shore D 和耐磨性都得到了提高。然而，Ep+0.5wt%Gr+50wt%Cu杂化复合材料的最大硬度为84，热导率为3.84 W/mK加载时的耐磨性最低为2.7×10 ^-6 mm ³ /Nm 10 牛顿。

结论：与其他复合材料相比，含有 0.5wt%Gr 和 50wt%Cu 的混合复合材料显示出最大的硬度和热导率，以及最低的耐磨性。混合复合材料的物理特性可以通过主体共混物控制，从而控制形态和界面特性。