Fig. 4: 3D printing and post-treatment for CNT/epoxy composites.
From: Transforming CO2 into advanced 3D printed carbon nanocomposites
a Manufacturing schematic from 3D printing CNT preform and polymer removal to 3D nanocomposite fabrication, b Characterization of 40 wt% CNT/PLA filament, showing a uniform distribution of the CNTs within the PLA, c Comparison photographs of carbon structure geometry according to the process step. d Surface geometry analysis by SEM images of as-printed, CNT scaffold, and CNT nanocomposite, e Comparison of tensile mechanical properties of epoxy and nanocomposites, f Thermal conductivity of synthesized CNT/PLA composites according to the printing direction [perpendicular (perp.) and parallel (par.)]. g Photographs demonstrating the design flexibility of 3D printing for complex 3D carbon structures.
