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纳米氧化锆填充UHMWPE人工髋臼的生物磨损行为研究 被引量：11

Biotribological Behavior of Ultra High Molecular Weight Polyethylene Composites Filled with Nano-ZrO_2
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摘要 采用热压工艺制备了超高分子量聚乙烯(UHMWPE)/纳米氧化锆(ZrO2)髋臼复合材料,利用UMT试验机测试复合材料的硬度和剪切冲压性能,利用人工髋关节模拟磨损试验机考察了复合材料在小牛关节液润滑条件下的摩擦磨损性能.结果表明,填充ZrO2提高UHMWPE复合材料的表面硬度、断裂载荷和断裂功,降低其磨损率.ZrO2/UHMWPE复合材料的磨粒尺寸随着ZrO2含量的增加而升高.UHMWPE复合材料耐磨性能与其大变形行为相关,复合材料的磨损率与大变形行为参数断裂载荷和断裂功呈反比线性关系. The artificial joint material of UHMWPE composite filled with nano -ZrO2 in different contests was prepared with a pressing formation method. Hardness and shear punch behavior of ZrO2/UHMWPE composites were measured with UMT tribo - tester. Biotribological behavior of the composites was investigated with a hip joint simulator under lubrication of calf bovine synovial. The experimental results indicated that nano - ZrO2 filler increased the hardness, frature load and fracture work of composites, and reduced the wear rate of the composite. The sizes of the wear particles become larger as the ZrO2 contents increased. The wear resistance of UHMWPE composites was influenced by their severe - deformation behavior. A negative linear function was found between the wear rate and fracture load, fracture work.
作者 王世博 葛世荣 刘洪涛 张德坤 周权
机构地区 中国矿业大学机电工程学院 中国矿业大学摩擦学与可靠性研究所 中国矿业大学材料科学与工程学院
出处 《摩擦学学报》 EI CAS CSCD 北大核心 2009年第4期324-328,共5页 Tribology
基金 国家自然科学基金重点项目资助(50535050) 国家重点基础研究发展规划(973)资助项目(2007CB607605) 教育部新世纪优秀人才支持计划资助项目(NCET-06-0479) 中国矿业大学校基金资助项目(2007A049)
关键词 纳米氧化锆 超高分子量聚乙烯 生物摩擦学 剪切冲压 nano- ZrO2, UHMWPE, biotribology, shear punch
分类号 TB332 [一般工业技术—材料科学与工程]
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参考文献17

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二级参考文献16

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摩擦学学报
2009年 第4期

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