| 纳米TiO2-超高分子量聚乙烯复合材料的摩擦学特性 |
| |
| 引用本文： | 樊冬娌.纳米TiO2-超高分子量聚乙烯复合材料的摩擦学特性[J].化学工业与工程技术,2008,29(3):32-35. |
| |
| 作者姓名： | 樊冬娌 |
| |
| 作者单位： | 南通大学化学化工学院,江苏,南通,226007 |
| |
| 摘 要： | 利用MM-200型摩擦磨损实验机，考察了纳米TiO2增强超高分子量聚乙烯（UHMWPE）复合材料在生理盐水润滑下，与Co—Cr—Mo合金对摩时的摩擦磨损性能，用光学显微镜观察了材料摩擦表面磨痕形貌。结果表明，适当填充纳米TiO2可提高UHMWPE的硬度，显著降低摩擦系数，增强耐磨性。UHMWPE的磨损主要表现为粘着、犁沟及塑性变形，TiO2-UHMWPE复合材料的磨损表现为轻微疲劳磨损。
|
| 关 键 词： | 超高分子量聚乙烯 纳米二氧化钛颗粒 摩擦磨损 人工关节 |
Tribological properties of nano TiO2-UHMWPE composites |
| |
| Fan Dongli.Tribological properties of nano TiO2-UHMWPE composites[J].Journal of Chemical Industry & Engineering,2008,29(3):32-35. |
| |
| Authors: | Fan Dongli |
| |
| Affiliation: | Fan Dongli (Nantong University School of Chemistry and Chemical Engineering,Nantong 226007 ,China) |
| |
| Abstract: | Ultra-high molecular weight polyethylene(UHMWPE) as an artificial joint acetabular material is reinforced with nano TiO2 of various mass fractions.The effect of nano TiO2 mass fraction on the hardness and tribological properties of the reinforced UHMWPE composites is investigated.Thus the composite blocks are made to slide against a Co-Cr-Mo alloy ring under physiological saline lubricated condition,and the morphologies of the worn composite surfaces observed with optics microscope.As the results,the hardness and wear resistance of TiO2-UHMWPE composites increased.UHMWPE is dominated by adhesion,plowing,plastic deformation and fatigue in sliding against the Co-Cr-Mo alloy,while the TiO2-UHMWPE are characterized by slight fatigue. |
| |
| Keywords: | Ultra-high molecular weight polyethylene Nano TiO2 Friction and wear Artificial joint |
| 本文献已被 维普 万方数据 等数据库收录！ |
