Abstract The stretching, shearing, deformation, peeling, and temperature rise phenomena at the micro–nano contact interface have a great influence on its tribological properties and significantly affect the service life of key moving parts made of polymers. The physical properties of the three typical polymer materials used for ship bearing polymer materials (ultra-high-molecular-weight polyethylene, synthetic rubber, and polypropylene) were examined to investigate their effects on the wear behaviors. The results showed that synthetic rubber has good wear resistance because of its excellent shear strength, tensile strength, and high initial thermoplastic deformation temperature. Low initial thermoplastic deformation temperature resulted in great wear to the polypropylene material under dry friction, whereas its good wettability resulted in good wear resistance under water-lubricated condition. The ultra-high-molecular-weight polyethylene had the poorest wear resistance under water-lubricated condition because it had the poorest shear strength and tensile strength. The knowledge gained herein provides a better understanding of the relationships between the physical behaviors of polymer materials and their friction and wear mechanisms, along with guidance for selecting and designing polymer friction pairs for ship bearings.

中文翻译：

---

典型物理性能对三种水润滑轴承高分子材料摩擦学行为的影响

摘要 微纳米接触界面处的拉伸、剪切、变形、剥离和温升现象对其摩擦学性能影响很大，并显着影响聚合物制成的关键运动部件的使用寿命。研究了用于船舶承载聚合物材料的三种典型聚合物材料（超高分子量聚乙烯、合成橡胶和聚丙烯）的物理性能，以研究它们对磨损行为的影响。结果表明，合成橡胶因其优异的剪切强度、拉伸强度和较高的初始热塑性变形温度而具有良好的耐磨性。较低的初始热塑性变形温度导致聚丙烯材料在干摩擦下磨损很大，而其良好的润湿性在水润滑条件下具有良好的耐磨性。超高分子量聚乙烯在水润滑条件下的耐磨性最差，因为它的剪切强度和拉伸强度最差。在此获得的知识可以更好地理解聚合物材料的物理行为与其摩擦和磨损机制之间的关系，以及为船舶轴承选择和设计聚合物摩擦副的指导。