In this paper, hybrid polymeric composites of epoxy with two solids (UHMWPE and MoS₂) and one liquid (base oil SN150) fillers were prepared to improve the thermal, mechanical and tribological properties for load bearing applications. Due to relatively high friction of solid lubricants compared to liquid lubricants, base oil was incorporated into the epoxy composite as liquid filler to achieve enhanced tribological properties. All the experiments were conducted with two interfacial conditions: polymer composite against steel (EN31) and polymer composite against itself. The base oil-filled epoxy composite showed excellent tribological performance with specific wear rate in the range of 10⁻⁷ mm³/Nm and low coefficient of friction of 0.08–0.1 at a constant nominal contact pressure of 0.611 MPa and speed 1 m/s. Durable transfer film formation was identified as the main wear reduction mechanism. These fillers also made the surface of epoxy hydrophobic in nature which reduced adhesion and friction. By adding fillers, thermal degradation temperature of the composite was increased by 22.8%. The lubrication mechanism was identified as mixed lubrication with three different sub-regimes.

在本文中，制备了环氧树脂与两种固体（UHMWPE 和 MoS ₂）和一种液体（基础油 SN150）填料的混合聚合物复合材料，以改善承载应用的热、机械和摩擦学性能。由于与液体润滑剂相比，固体润滑剂的摩擦相对较高，因此将基础油作为液体填料掺入环氧树脂复合材料中，以提高摩擦学性能。所有实验都是在两种界面条件下进行的：聚合物复合材料对钢（EN31）和聚合物复合材料对自身。基础油填充环氧树脂复合材料表现出优异的摩擦学性能，比磨损率在 10 ^-7 mm ³范围内/Nm 和 0.08–0.1 的低摩擦系数，在 0.611 MPa 的恒定标称接触压力和 1 m/s 的速度下。持久的转移膜形成被确定为主要的磨损减少机制。这些填料还使环氧树脂表面具有疏水性，从而降低了附着力和摩擦力。添加填料后，复合材料的热降解温度提高了22.8%。润滑机制被确定为具有三个不同子机制的混合润滑。