铜及其氧化物填充UHMWPE力学、摩擦学性能研究

在超高分子量聚乙烯(UHMWPE)中分别填充铜粉、氧化铜粉和氧化亚铜粉，用万能材料试验机、摩擦磨损试验机等研究了三种填料对UHMWPE复合材料力学性能和摩擦磨损性能的影响，利用扫描电子显微镜对几种材料的磨损表面进行了观察和分析。结果表明，在填料添加量相同时，铜粉的减摩耐磨效果最好，氧化铜粉的减摩耐磨效果次之，氧化亚铜粉的减摩耐磨效果最差；以体积分数25％的铜粉填充的UHMWPE复合材料，具有良好的力学性能和摩擦学性能，是一种有应用前景的聚合物基减摩抗磨材料。

STUDY ON MECHANICAL AND TRIBOLOGICAL PROPERTIES OF COPPER AND COPPER OXIDES FILLING UHMWPE COMPOSITES

Ultra-high molecular weight polyethylene(UHMWPE) was filled with Cu, CuO, Cu 2O separately. The effect of the three fillers on the mechanical and tribological properties of UHMWPE composites was investigated with a mechanical tester, friction and wear tester, and so on. The worn surfaces of UHMWPE composites were examined and analyzed with a scanning electron microscope. It was found that with the same volume content of the addition of fillers, tribological property of copper filling composite was the best, the composite filled with CuO was the second place, and the UHMWPE/Cu 2O had the worst tribological property. UHMWPE composite reinforced by 25% volume content of copper powder had good mechanical and tribological properties, which would be a good candidate for the tribological application among polymer materials.