Processing and Mechanical Properties of Biphasic Calcium-Phosphate/Poly-L-Lactide Composite Biomaterials

Chak Yin Tang; N. Ignjatović; Dragan P. Uskokovic; P.S. Uskoković; K.C. Chan; S.C.L. Lo; Tai Chiu Lee

doi:10.4028/www.scientific.net/MSF.471-472.273

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HomeMaterials Science ForumMaterials Science Forum Vols. 471-472Processing and Mechanical Properties of Biphasic...

Processing and Mechanical Properties of Biphasic Calcium-Phosphate/Poly-L-Lactide Composite Biomaterials

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 Xray 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.

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Materials Science Forum (Volumes 471-472)

Pages:

273-277

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.471-472.273

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Online since:

December 2004

Authors:

Chak Yin Tang, N. Ignjatović, Dragan P. Uskokovic, P.S. Uskoković, K.C. Chan, S.C.L. Lo, Tai Chiu Lee

Keywords:

Biphasic Calcium Phosphate (BCP), Composite, Poly(L-Lactide)

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