Preparation of hydroxylated polyethylene surfaces
Abstract:The surfaces of high-density or ultra-high-molecular-weight polyethylenes were hydroxylated using a two-step process. The wetting and wear properties of the untreated (virgin) and surface hydroxylated polyethylenes were compared. The introduction of hydroxyl groups provided an increase in surface hydrophilicity resulting in reduced wear. Hydrophilicity was analyzed by optical analysis of water contact angle. Wear was determined by weight loss under conditions of a reciprocating pin-on-plate apparatus with the panels immersed in water or calf serum. These results suggest that hydroxylation of polyethylene friction-bearing orthopedic surfaces may lead to a longer joint life.
Document Type: Research Article
Affiliations: 1: Kettering University, 1700 West Third Avenue, Flint, MI 48504, USA 2: McLaren Regional Medical Center, 401 South Ballenger Highway, Flint, MI 48532, USA 3: Beholztech, Inc., 132 West First Street, Flint, MI 48502, USA
Publication date: April 1, 2008