Poly-ether-ether ketone (PEEK) is a great potential thermoplastic in industry and medical treatment and health. In this work, PEEK/graphene oxide (GO) and PEEK/MoS₂ composites were prepared by a novel hot isostatic pressing method. The addition of GO alters the tribological behaviors mechanism; fatigue wear mechanism is predominant to PEEK/GO composites. However, the combination of abrasive and adhesive wear mechanisms is observed for PEEK/MoS₂ composites and PEEK. The reason for this is that the hardness and tensile strength of composites are increased with the appropriate addition of GO. The response time to stable friction state of PEEK/GO and PEEK/MoS₂ composites is reduced in comparison with PEEK, which is conducive to shorten running-in time, reduce the energy consumption, and improve the tribological performances of composites. The addition of GO and MoS₂ can effectively decrease the friction coefficient and wear rate, and the optimal content of GO and MoS₂ was 0.7 wt.% and 15 wt.%, respectively. The results indicate that PEEK/GO and PEEK/MoS₂ are impressive composites that possess super tribological properties.

中文翻译：

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润滑增强型PEEK复合材料的制备及其摩擦学行为

聚醚醚酮（PEEK）在工业，医疗和健康领域具有巨大的潜力。在这项工作中，通过新颖的热等静压方法制备了PEEK /氧化石墨烯（GO）和PEEK / MoS ₂复合材料。GO的加入改变了摩擦学行为机理；疲劳磨损机理主要是PEEK / GO复合材料。然而，对于PEEK / MoS ₂复合材料和PEEK，观察到磨料磨损和粘合剂磨损机理的组合。其原因是，适当添加GO可以提高复合材料的硬度和拉伸强度。PEEK / GO和PEEK / MoS ₂对稳定摩擦状态的响应时间与PEEK相比，减少了复合材料的使用，有利于缩短磨合时间，降低能耗，提高复合材料的摩擦学性能。GO和MoS _2的添加可以有效地降低摩擦系数和磨损率，并且GO和MoS ₂的最佳含量_分别为0.7重量％和15重量％。结果表明，PEEK / GO和PEEK / MoS ₂是令人印象深刻的复合材料，具有超强的摩擦学性能。