| 仿生人工软骨材料的摩擦磨损性能及润滑机理研究 |
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| 引用本文： | 吴刚,王成焘,张文光.仿生人工软骨材料的摩擦磨损性能及润滑机理研究[J].摩擦学学报,2009,29(2). |
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| 作者姓名： | 吴刚 王成焘 张文光 |
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| 作者单位： | 吴刚,WU Gang(三峡大学机械与材料学院,湖北,宜昌,443002);王成焘,张文光,WANG Cheng-tao,ZHANG Wen-guang(上海交通大学机械与动力工程学院,上海,200030)
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| 基金项目： | 国家自然科学基金，三峡大学博士科研启动基金 |
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| 摘 要： | 采用原位复合法制备聚乙烯醇水凝胶(PVA-H),采用模板-滤取法制备多孔超高分手量聚乙烯(UHMWPE)材料,对比研究了这2种材料在相同条件下的摩擦磨损性能,通过改变试验转速和载荷获得Stribeck曲线,并对其润滑机理进行分析.结果表明:干摩擦条件下,多孔UHMWPE和PVA-H的摩擦系数和磨损量均较大;在水润滑和牛血清润滑条件下,二者的摩擦磨损性能均得以改善,且PVA-H具有更低的磨损量.Stribeck曲线分析表明:仿生UHMWPE具有的多孔结构使得在其一定的区域内可以形成混合润滑区域;PVA-H具有更好的亲水性能和多孔结构,对应的Stribeck曲线谷底较宽,能够形成较宽的混合润滑区域和流体润滑区域,从而降低了接触区域的磨损量.
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| 关 键 词： | 摩擦学性能 润滑机理 |
Tribological Property and Lubricant Mechanism of Biomimetic Artificial Cartilage Material |
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| WU Gang,WANG Cheng-tao,ZHANG Wen-guang.Tribological Property and Lubricant Mechanism of Biomimetic Artificial Cartilage Material[J].Tribology,2009,29(2). |
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| Authors: | WU Gang WANG Cheng-tao ZHANG Wen-guang |
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| Institution: | 1.College of Mechanical and Material Engineering;China Three Gorges University;Yichang Hubei 443002;China;2.School of Mechanical Engineering;Shanghai Jiaotong University;Shanghai 200030;China |
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| Abstract: | PVA-H/HA composite and porous UHMWPE were prepared by in situ method and Template-Leaching,respectively.The friction and wear properties of two materials were comparatively studied under the same condition.The lubricating regimes of two materials sliding against stainless steel disc were investigated based on theoretical analysis of the relevant Stribeck curves.Both friction and wear loss of porous UHMWPE were higher than that of PVA-H/HA under dry sliding.While under lubrication,PVA-H/HA exhibited better s... |
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| Keywords: | PVA-H UHMwPE |
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