Antifriction nanocomposites based on chemically modified UHMWPE. Part 1. Mechanical and tribological properties of chemically modified UHMWPE

S. V. Panin, L. A. Kornienko, S. Piriyaon, L. R. Ivanova, S. V. Shil'ko, Yu M. Pleskachevskii, V. M. Orlov

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The mechanical and tribological properties of chemically modified UHMWPE are studied. X-ray diffraction analysis, IR spectroscopy, scanning differential calorimetry, and electron emission are used to study the permolecular structure and friction surface of polymers with different amounts of copolymers UHMWPE and LDPE grafted with maleic anhydride. Addition of grafted UHMWPE is shown to have no effect on the viscoelastic properties of the polymer-polymer composite, while the addition of grafted LDPE noticeably improves its performance (ductility, plasticity) while retaining its strength. Chemical modification of UHMWPE significantly improves its wear resistance (two to three times), which is due to the features of polymer crystallization and the formation of a permolecular structure.

Original languageEnglish
Pages (from-to)199-204
Number of pages6
JournalJournal of Friction and Wear
Volume32
Issue number3
DOIs
Publication statusPublished - Jun 2011

Keywords

  • antifriction nanocomposites
  • chemical modification
  • mechanical and tribological properties
  • permolecular structure
  • ultrahigh-molecular-weight polyethylene

ASJC Scopus subject areas

  • Mechanics of Materials
  • Surfaces, Coatings and Films

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