分别在生理盐水和代血浆润滑条件下对聚氨醋(PU),聚酰胺(PA66 )、乙烯-醋酸乙烯共聚物(EVA)和聚乙烯醇(PVA)水凝胶作为人工关节软骨的摩擦学性能进行了研究,与猪关节软骨进行对比,并用SEM观察样品磨痕表面微观形貌,分析其摩擦机理.结果显示,材料的平均摩擦系数都很小,但都高于天然猪关节软骨(POAC)的摩擦系数.PVA的平均摩擦系数与猪关节软骨最为接近,而PU和PA66的抗摩擦能力优于PVA和EVA.
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