Effect of pre-heat treatment on the static and dynamic thermo-mechanical properties of ultra-high molecular weight polyethylene

H. Fouad, A. H.I. Mourad, D. C. Barton

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)

Abstract

In the present work, a dynamic thermo-mechanical analysis technique has been used to investigate the effect of pre-heat treatments on the visco-elastic properties of Ultra-High Molecular Weight Polyethylene (UHMWPE) as a function of frequency and temperature. These properties include storage modulus (E′) and loss modulus (E″). The UHMWPE specimens were pre-heated at 50, 80 and 100 °C for periods of 2 and 4 h, respectively. The effect of these pre-heat treatments on the quasi-static mechanical properties (Young's modulus, yield strength, fracture strength, ductility and micro-hardness) has also been investigated. Finally, the degree of crystallinity of the UHMWPE has been measured as a function of pre-heat treatment time and temperature. The results show a strong dependence of most of these properties on the degree of crystallinity which is a function of pre-heat treatment temperature and duration.

Original languageEnglish
Pages (from-to)549-556
Number of pages8
JournalPolymer Testing
Volume24
Issue number5
DOIs
Publication statusPublished - Aug 2005

Keywords

  • Degree of crystallinity
  • Dynamic mechanical properties
  • Micro-hardness
  • Pre-heat treatment
  • UHMWPE

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry

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