Processing and mechanical properties of biphasic calcium-phosphate/poly-L- lactide composite biomaterials

Chak Yin Tang, N. Ignjatovic, D. P. Uskokovic, P. S. Uskokovic, Kang Cheung Chan, Chun Lap Samuel Lo, T. C. Lee

Research output: Journal article publicationConference articleAcademic researchpeer-review

Abstract

This study descripts processing of biphasic calcium-phosphate (BCP) and poly-L-lactide (PLLA) biocomposite implant material. The composite was obtained by mixing completely dissolved PLLA with granules of high crystalline BCP and was compacted by hot pressing using cylindrical dies at 450 K temperature and 98.1 MPa pressure, for 30 and 60 minutes. Wide-angle X-ray structural (WAXS) analyses of BCP, PLLA and BCP/PLLA composite blocks were made followed by calorimetric (DSC) tests in the 320-520 K temperature range. Compression tests revealed that Young's modulus and compressive strength of the composite increased with extended hot pressing time and were found to be within the bounds of the cortical bone values.
Original languageEnglish
Pages (from-to)273-277
Number of pages5
JournalMaterials Science Forum
Volume471-472
Publication statusPublished - 1 Dec 2004
Event11th International Manufacturing Conference - Advances in Materials Manufacturing Science and Technology. - Jinan, China
Duration: 18 Sep 200420 Sep 2004

Keywords

  • Biphasic calcium-phosphate
  • Composite
  • Poly-L-lactide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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