Poly (ε-caprolactone)/hydroxyapatite composites: Effects of particle size, molecular weight distribution and irradiation on interfacial interaction and properties

Biqiong Chen*, Kang Sun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

Hydroxyapatite reinforced poly(ε-caprolactone) composites with different particle sizes and molecular weight distributions were prepared using a simple melt-processing method. Some composites were modified by electron beam irradiation. Dynamic viscoelastic properties were investigated using dynamic mechanical thermal analysis (DMTA) and an advanced rheometric expansion system. The results showed that the composite with narrower molecular weight distribution and smaller particle sizes had better processing and mechanical properties. Correspondingly, its interfacial interaction determined from differential scanning calorimetry, together with DMTA, was also stronger. Irradiation seriously damaged the adhesive interaction between the two phases, as observed under a scanning electron microscope, thus deteriorating the properties.

Original languageEnglish
Pages (from-to)64-70
Number of pages7
JournalPolymer Testing
Volume24
Issue number1
DOIs
Publication statusPublished - Feb 2005
Externally publishedYes

Keywords

  • Hydroxyapatite
  • Interfacial interaction
  • Mechanical property
  • Poly(ε-caprolactone)
  • Viscoelasticity

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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