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Mechanical Performance of 3D-Printed Biocompatible Polycarbonate for Biomechanical Applications.
Giovanni Gómez-Gras1, Manuel D Abad1, Marco A Pérez1
1IQS School of Engineering, University Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
Polymers
|November 13, 2021
Summary
This study details additive manufacturing of PC-ISO polycarbonate, finding printing parameters significantly impact mechanical strength for biomechanical applications. Further material combinations are needed for bone scaffold functionality.
Area of Science:
- Biomaterials Engineering
- Additive Manufacturing
- Polymer Science
Background:
- Additive manufacturing offers customization and cost savings over traditional methods.
- PC-ISO polycarbonate is a biocompatible material suitable for biomedical applications.
- Existing synthetic materials often lack the mechanical strength required for human body applications.
Purpose of the Study:
- To conduct a comprehensive characterization of PC-ISO polycarbonate.
- To investigate the influence of fused filament fabrication printing parameters on PC-ISO's mechanical properties.
- To determine optimal printing parameters for biomechanical applications and assess material limitations.
Main Methods:
- Exhaustive characterization of PC-ISO polycarbonate.
- Fused filament fabrication (FFF) of PC-ISO specimens.
- Mechanical testing including tensile, bending, shear, impact, and fatigue strength analysis.
Main Results:
- Printing parameters did not significantly affect mass, cost, or manufacturing time.
- Printing parameters critically influenced tensile, bending, shear, impact, and fatigue strengths.
- Optimal parameter combinations for biomechanical applications were identified.
Conclusions:
- PC-ISO's mechanical properties are highly dependent on printing parameters.
- Achieving the necessary strength for bone scaffold applications requires combining PC-ISO with other materials.
- Further research is needed to develop composite materials for enhanced bone scaffold performance.
