Evaluation of wear suppression for phospholipid polymer-grafted ultra-high molecular weight polyethylene at concentrated contact

Shuichiro Uehara, Seido Yarimitsu, Toru Moro, Masayuki Kyomoto, Kenichi Watanabe, Sakae Tanaka, Kazuhiko Ishihara, Teruo Murakami

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The wear resistance of cross-linked polyethylene grafted with poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC-grafted CLPE) and unmodified CLPE loaded by an alumina roller were evaluated in a simulated synovial fluid (0.5 wt% hyaluronate solution containing 30 vol% fetal bovine serum). To evaluate the wear depth distribution within the wear scar, we compared the projected area of wear and non-wear for indents on polyethylene surfaces produced by a triangular pyramidal indenter and estimated the local wear depths on the basis of the changes in the projected area. The worn depth of PMPC-grafted CLPE was almost a third lower than that on CLPE.

Original languageEnglish
Pages (from-to)264-272
Number of pages9
JournalTribology International
Volume101
DOIs
Publication statusPublished - Sept 1 2016

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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