Lubricating Behaviour of Hyaluronic Acid in Artificial Articular Materials

Supporting the study of artificial articuar cartilage materials, the research and development of an artificial synovial fluid of Hyaluronic acid (HA) was carried out. With two lubricated sliding pairs, PVAH/316L and PVA-H/PVA-H, an modified oscillator-type tri-biometer and M-2000 wear test machine were used to detemine the rehological properties and lubricating behaviour of a series of HA solution.The experimental results showed that the solution of HA had the rehological properties similaring to the natural synovial fluid to a cehain eXtellt, and decreased the ffiction and wear of tWo kinds of lubricatCd sliding pairs, also it rendered abetter 1ubricating effection on PVA-unVA-H than on PVA-H/3 l6L. The sofution of HA with O.75% (massfraction) showed a better lubricating behaviour than 30% (volumic fraction) Bovine Serum. So HA solutionwould be a promising Anficial synovial fluid.