Wear of UHMWPE Materials
Ultrahigh molecular weight polyethylene (UHMWPE) shows unusual wear resistance compared to most materials. Persumably this is due to a combination of very high molecular weight and the resulting entanglements and relative surface softness with a slippery waxy surface. (RDC 4/23/2011)
Mechanical Properties
Properties
Ultrahigh Molecular Weight Polyethylene (UHMWPE)
Wear /Tribology
Recent Journal Articles
Effect of micro-surface defect on tribological property of UHMWPE
(425-430) Journal of Reinforced Plastics and Composites 30 #5 (2011)
Abstract
Liu, Cao and Ge of China University of Mining and Technology, China, showed that the friction coefficient decreased when the micro-defect holes were gradually distributed on the friction surface uniformly. That was mainly because the uniform micro-defect holes formed regular texture, increasing the balance of friction and wear. The wear loss of UHMWPE decreased gradually with the increase of the amount of micro-defect holes, and there was a good linear relationship between them. When the friction surface was filled with uniformly distributed micro-defect holes, not only the wear loss decreased, but also wear debris with ideal size distribution was obtained. So, the theoretical and experimental basis was provided for the idea of the surface texturization of artificial arthrosis. (RDC 4/22/2011)