Enhancement of 3D Printability by FDM and Electrical Conductivity of PLA/MWCNT Filaments Using Lignin as Bio-Dispersant.

ABSTRACT: To increase the applications of FDM (fusion deposition modeling) 3D printing in electronics, it is necessary to develop new filaments with good electrical properties and suitable processability. In this work, polymer composites filament-shaped with superior electrical performance based on polylactic acid (PLA) carbon nanotubes and lignin blends have been studied by combining solution mixing and melt blending. The results showed that composites achieve electrical percolation from 5 wt.% of nanotubes, with high electrical conductivity. Moreover, the introduction of a plasticizing additive, lignin, improved the printability of the material while increasing its electrical conductivity (from (1.5 ± 0.9)·10^-7 S·cm^-1 to (1.4 ± 0.9)·10^-1 S cm^-1 with 5 wt

SUBMITTER: Lage-Rivera S 

PROVIDER: S-EPMC9960198 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature