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采用热挤压方法制备了含不同 L a2 O3添加量的尼龙 10 10 (PA10 10 )复合材料。测定了复合材料的密度和硬度。在 MM- 2 0 0型环 -块实验机上考察了复合材料分别与黄铜和 45 #钢配摩的摩擦磨损性能。研究结果发现 ,填充 15 % (质量分数 ) L a2 O3的 PA10 10复合材料硬度最高 ;摩擦学性能显著改善。摩擦系数降低为原来未填充L a2 O3的 PA10 10的一半 ,磨损体积降低 1个数量级左右。 PA10 10复合材料与 45 #钢配摩的摩擦系数和磨损量均低于和黄铜配摩 ,这是其与钢配摩比与黄铜配摩的转移膜更加均匀、致密的结果
Nylon 10 10 (PA10 10) composites with different amounts of La2O3 added were prepared by hot extrusion. The density and hardness of the composite were measured. The friction and wear properties of composites with brass and 45 # steel were investigated on a MM-200 ring-block machine. The results showed that the hardness of PA10 10 composite filled with 15% (mass fraction) L a 2 O 3 was the highest, and the tribological properties were significantly improved. The friction coefficient was reduced to half that of the PA10 10 that was not filled with L a2 O3, and the wear volume was reduced by about one order of magnitude. The friction coefficient and wear amount of PA10 10 composite and 45 # steel were lower than that of brass, which was a more uniform and dense result of the transfer film with steel compound ratio and brass compound friction