DOI: 10.18150/l4tey5
title: Data for the article entitled „Injection Molding Simulation of Polycaprolactone-Based Carbon Nanotube Nanocomposites for Biomedical Implant Manufacturing”

description: Files include the data presented in the manuscript entitled " Injection Molding Simulation of Polycaprolactone-Based Carbon Nanotube Nanocomposites for Biomedical Implant Manufacturing " by K.Formas et al. (2025, 18, 3192; https://doi.org/10.3390/ma18133192).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 solidification due to increased melt viscosity and thermal conductivity. Experimental molding trials with the 0.5 wt.% CNT composites confirmed the simulation findings. Following minor adjustments to processing parameters, high-quality, defect-free sticks were produced. Overall, the PCL/MWCNT composites with 0.5 wt.% nanotube content exhibited optimal injection molding performance and functional properties, supporting their application in modular, patient-specific biomedical 3D printing. Data (.mp4) includes:1)   The results of the total fill time analysis for PCL samples modified with 0.5, 5, and 10 wt.% CNTs (Figure 1):(a) PCL_0.5 /plik name 1) total-fil-time-0.5/;(b) PCL_5 /plik name 1) total-fil-time-5/(c) PCL_10 /plik name 1) total-fil-time-10/ 2)   The results of the pressure at the packing switch time for PCL samples modified with 0.5, 5, and 10 wt.% CNTs (Figure 2):(a) PCL_0.5 /plik name: 2) pressure at the packing switch time-0.5/;(b) PCL_5; /plik name: 2) pressure at the packing switch time-5/;(c) PCL_10 /plik name: 2) pressure at the packing switch time-10/; 3)   The results of the flow front temperature during the injection process for PCL samples modified with 0.5, 5, and 10 wt.% nanotubes (Figure 3):(a) PCL_0.5 /plik name: 3) flow front temperature-0.5/;(b) PCL_5 /plik name: 3) flow front temperature-5/;(c) PCL_10 /plik name: 3) flow front temperature-10/; 4)   The results of the frozen areas at the injection process end for PCL samples modified with various wt% nanotubes (Figure 4):(a) PCL_0.5 /plik name: 4) frozen areas at the end of process-0.5/;(b) PCL_5 /plik name: 4) frozen areas at the end of process-5/;(c) PCL_10 /plik name: 4) frozen areas at the end of process-10/; 5)   The results of the temperature distribution at the injection process end (clipping section through sticks) (Figure 5):(a) PCL_0.5 /plik name: 5) temperature at the end of process-0.5/;(b) PCL_5 /plik name: 5) temperature at the end of process-5/;(c) PCL_10 /plik name: 5) temperature at the end of process-10/; 6)   The results of simulated fiber orientation in composite sticks with CNT contents of 0.5 wt.%; 5 wt.%; and 10 wt.%. (Figure 6, 7, 8 and 9):(a) PCL_0.5 /plik name: 6) fibers orientation-0.5/;(b) PCL_5 /plik name: 6) fibers orientation-5/;(c) PCL_10 /plik name: 6) fibers orientation-10/;