Mechanical and dynamic viscoelastic properties of hydroxyapatite reinforced poly(ε-caprolactone)

Biqiong Chen*, Kang Sun

*Corresponding author for this work

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Poly(ε-caprolactone)/hydroxyapatite (PCL/HA) composites as potential bone substitutes were prepared by melt-blending. The melting, crystallization and glass transition temperatures deduced from differential scanning calorimetery and dynamic mechanical thermal analysis (DMTA) were all changed by the addition of HA, suggesting an interaction at the interface of these two phases. Quasi-static mechanical testing shows that the yield strength and Young's modulus of PCL were increased by the addition of the reinforcement filler, HA. Dynamic viscoelastic properties were investigated using DMTA and an advanced rheometric expansion system. The results show that both the storage modulus and viscous modulus are enhanced by HA, and the PCL composite melts still behave like pseudo-plastic liquid.

Original languageEnglish
Pages (from-to)978-982
Number of pages5
JournalPolymer Testing
Volume24
Issue number8
DOIs
Publication statusPublished - Dec 2005
Externally publishedYes

Keywords

  • Hydroxyapatite
  • Interaction
  • Mechanical property
  • Poly(ε-caprolactone) composites
  • Viscoelastic property

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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