HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Fabrication of PLA/PCL/Graphene Nanoplatelet (GNP) Electrically Conductive Circuit Using the Fused Filament Fabrication (FFF) 3D Printing Technique

Abstract : For the purpose of fabricating electrically conductive composites via the fused filament fabrication (FFF) technique whose properties were compared with injection-moulded properties, poly(lactic acid) (PLA) and polycaprolactone (PCL) were mixed with different contents of graphene nanoplatelets (GNP). The wettability, morphological, rheological, thermal, mechanical, and electrical properties of the 3D-printed samples were investigated. The microstructural images showed the selective localization of the GNPs in the PCL nodules that are dispersed in the PLA phase. The electrical resistivity results using the four-probes method revealed that the injection-moulded samples are insulators, whereas the 3D-printed samples featuring the same graphene content are semiconductors. Varying the printing raster angles also exerted an influence on the electrical conductivity results. The electrical percolation threshold was found to be lower than 15 wt.%, whereas the rheological percolation threshold was found to be lower than 10 wt.%. Furthermore, the 20 wt.% and 25 wt.% GNP composites were able to connect an electrical circuit. An increase in the Young’s modulus was shown with the percentage of graphene. As a result, this work exhibited the potential of the FFF technique to fabricate biodegradable electrically conductive PLA-PCL-GNP composites that can be applicable in the electronic domain.
Document type :
Journal articles
Complete list of metadata

https://hal.mines-ales.fr/hal-03536661
Contributor : Administrateur Imt - Mines Alès Connect in order to contact the contributor
Submitted on : Thursday, January 20, 2022 - 9:42:06 AM
Last modification on : Wednesday, May 18, 2022 - 5:05:56 PM
Long-term archiving on: : Thursday, April 21, 2022 - 6:25:16 PM

File

materials-15-00762.pdf
Publisher files allowed on an open archive

Identifiers

Citation

Nour-Alhoda Masarra, Marcos Batistella, Jean‐christophe Quantin, Arnaud Regazzi, Monica Pucci, et al.. Fabrication of PLA/PCL/Graphene Nanoplatelet (GNP) Electrically Conductive Circuit Using the Fused Filament Fabrication (FFF) 3D Printing Technique. Materials, MDPI, 2022, 15 (3), pp.762. ⟨10.3390/ma15030762⟩. ⟨hal-03536661⟩

Share

Metrics

Record views

25

Files downloads

30