Abstract The lubricant temperature has a negative impact on the wear resistance of water-lubricated bearings. In this study, three different additive mass fractions polyurethane-polyethylene wax (PU-PEW) composite material were manufactured and tested under the high-temperature conditions compared with pure PU and THORDON. The tribological performance of different materials was then evaluated by the analysis of friction coefficient, wear mass loss and wear micrographs. The results show the PEW could perfectly improve the tribological performance of PU. The changes in average friction coefficient of PU-PEW1 (10g PEW) is 0.015 lower than that of THORDON at condition of different lubrication temperature. The wear mass loss of PU-PEW1 was 6.33 mg lower and the worn surface has a higher flatness than that of THORDON. This reported study provided an experimental basis for water-lubricated bearing material selection under high-temperature and high-load conditions.

中文翻译：

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聚氨酯复合材料在高温水润滑下的摩擦学性能洞察

摘要 润滑油温度对水润滑轴承的耐磨性有负面影响。在这项研究中，与纯 PU 和 THORDON 相比，在高温条件下制造和测试了三种不同添加剂质量分数的聚氨酯-聚乙烯蜡 (PU-PEW) 复合材料。然后通过对摩擦系数、磨损质量损失和磨损显微照片的分析来评估不同材料的摩擦学性能。结果表明，PEW 可以完美地提高 PU 的摩擦学性能。在不同润滑温度条件下，PU-PEW1（10g PEW）的平均摩擦系数变化比THORDON低0.015。PU-PEW1 的磨损质量损失比 THORDON 低 6.33 mg，磨损表面的平整度更高。