Sofia Arevalo Rose Hills
Relationship between wear and nano-mechanical properties of Polycarbonate Urethane (PCU)
Polycarbonate Urethane (Bionate, PCU), a medical grade polymer, is utilized in the orthopedic industry as a load bearing system due to its superior mechanical properties and biocompatibility. However, adhesive/abrasive wear of polymers in vivo can lead to osteolysis (bone loss) and subsequent aseptic loosening of implants, severely limiting their overall lifetime. This study will instigate the surface mechanical properties, by using a nanonindenter by Hysitron, of Bionate 75D and Bionate 80A and determine a correlation between nanoindentation and wear properties. Understanding the relationship between surface properties and wear behavior can allow researchers to efficiently measure surface behavior.