聚乙烯醇水凝胶的生物摩擦学研究进展

介绍了聚乙烯醇水凝胶的制备方法及其物理化学性能,评述了润滑介质、摩擦配副、摩擦运动方式、水凝胶自身特性及载荷和基体材料性质等对聚乙烯醇水凝胶生物摩擦磨损性能的影响,指出今后应加强对多因素协同作用下水凝胶磨损机理、关节运动模拟系统、关节滑液的主要组分润滑协同效应及其润滑机理的研究.

Recent Development on Biotribology of Poly(vinyl alcohol) Hydrogel

PVA hydrogel exhibits some mechanical properties that are consistent with that of human cartilage and it has superior biocompatibility. It has been proposed as a promising biomaterial for artificial articular cartilage. This paper reviews recent advances in the biotribology of PVA hydrogel. Emphasis is placed on the influences of lubricant, friction counterpart, friction motion model, PVA characteristics, loads and matrix property to the biotribological property of the PVA hydrogel. Moreover, some key issues concerning the research on biotribology of PVA hydrogel are suggested. And it is suggested to focus on the wear mechanism of hydrogel by considering synergistic effects of varies factors, friction and wear simulation system, synergistic effects of main ingredients in the lubricant on the friction and wear properties of PVA hydrogel, and lubrication mechanism of the synovia.