Injection Molding Simulation of Polycaprolactone-Based Carbon Nanotube Nanocomposites for Biomedical Implant Manufacturing
Krzysztof Formas, Jarosław Janusz, Anna Kurowska, Aleksandra Benko, Wojciech Piekarczyk, Izabella Rajzer
TL;DR
This study simulates and validates the injection molding of PCL-based nanocomposites with carbon nanotubes for biomedical implants, finding that low CNT content yields the best results.
Contribution
The study introduces a validated simulation approach for optimizing PCL/MWCNT nanocomposites in injection molding for 3D-printed biomedical implants.
Findings
Low CNT content (0.5 wt.%) enabled stable filling times and complete mold cavity filling.
Higher CNT loadings (10 wt.%) caused longer fill times and incomplete cavity filling due to increased viscosity.
Experimental trials confirmed simulation results for 0.5 wt.% CNT composites.
Abstract
This study consisted of the injection molding simulation of polycaprolactone (PCL)-based nanocomposites reinforced with multi-walled carbon nanotubes (MWCNTs) for biomedical implant manufacturing. The simulation was additionally supported by experimental validation. The influence of varying MWCNT concentrations (0.5%, 5%, and 10% by weight) on key injection molding parameters, i.e., melt flow behavior, pressure distribution, temperature profiles, and fiber orientation, was analyzed with SolidWorks Plastics software. The results proved the low CNT content (0.5 wt.%) to be endowed with stable filling times, complete mold cavity filling, and minimal frozen regions. Thus, this formulation produced defect-free modular filament sticks suitable for subsequent 3D printing. In contrast, higher CNT loadings (particularly 10 wt.%) led to longer fill times, incomplete cavity filling, and early…
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Taxonomy
TopicsAdditive Manufacturing and 3D Printing Technologies · Injection Molding Process and Properties · Polymer Foaming and Composites