
doi: 10.13025/18159
handle: 10379/6004
Orthopaedic scaffold materials were fabricated from polycaprolactone (PCL) and composite PCL‐β‐tricalcium phosphate (PCL/β‐TCP) powders using selective laser sintering (SLS). Incorporating β‐TCP particles is desirable to promote osteogenesis. The effects of increasing β‐TCP content on the material’s mechanical properties and microstructure were evaluated. The wt% of β‐TCP and PCL particle sizes were found to influence material microstructure and mechanical properties, with increasing ceramic content causing a small but significant increase in stiffness but significant reductions in strength. Degradation of materials was achieved using accelerated ageing methods. The influence of β‐TCP content on degradation at seven weeks was evaluated through changes in mechanical properties and microstructure, and the ceramic particles were found to reduce elastic modulus and increase strength. The results of this study highlight the influence of ceramic content on mechanical properties and degradation behaviour of PCL/β‐TCP SLS materials, and indicate that these changes must be considered in the design of scaffolds for critical‐sized defects.
Polycaprolactone, β-Tricalcium phosphate, Degradation, Selective laser sintering, Biomedical Engineering, FOS: Mechanical engineering, Mechanical properties, Biomedical engineering, Mechanical engineering, Bone tissue engineering, Accelerated ageing
Polycaprolactone, β-Tricalcium phosphate, Degradation, Selective laser sintering, Biomedical Engineering, FOS: Mechanical engineering, Mechanical properties, Biomedical engineering, Mechanical engineering, Bone tissue engineering, Accelerated ageing
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