ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE WITH IMPROVED WEAR RESISTANCE AND MECHANICAL PROPERTIES FOR TOTAL JOINT IMPLANTS
First generation highly cross-linked ultra high molecular weight polyethylene made by radiation cross-linking and subsequent melting has been successful for joint implants because of their good wear resistance and oxidation stability.1 However, the strength and toughness were reduced, which caused early failure of the implants. Our aim was to improve both the wear resistance and toughness of UHMWPE for high demanding joint implants. We have advanced a method of high temperature melting to improve the plasticity and toughness at low expense of wear rate.2 Here, we further improve the wear resistance of these high temperature melted UHMWPE (HTM-PE) by radiation cross-linking. The improved mechanical properties of the HTM-PEs were expected to offset the loss in mechanical properties induced by subsequent radiation cross-linking.
Jun Fu Ebru Oral Orhun K.Muratoglu
Massachusetts General Hospital, Harvard Medical School Ningbo Institute of Material Technology and E Massachusetts General Hospital, Harvard Medical School
国际会议
PP’2010，Jinan International Symposium on Polymer Physics(2010济南国际高分子物理学术研讨会)
济南
英文
129-130
2010-06-06（万方平台首次上网日期，不代表论文的发表时间）