G raphene O xide B ased T ransparent R esins F or A ccurate 3D P rinting of C onductive M aterials - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Advanced Functional Materials Année : 2023

G raphene O xide B ased T ransparent R esins F or A ccurate 3D P rinting of C onductive M aterials

Résumé

Abstract Digital Light Processing (DLP) allows the fast realization of 3D objects with high spatial resolution. However, DLP is limited to transparent resins, and therefore not well suited for printing electrically conductive materials. Manufacturing conductive materials will significantly broaden the spectrum of applications of the DLP technology. But conductive metals or carbon‐based fillers absorb and scatter light; inhibiting thereby photopolymerization, and lowering resolution. In this study, UV transparent liquid crystal graphene oxide (GO) is used as precursor for generating in situ conductive particles. The GO materials are added to a photopolymerizable resin via an original solvent exchange process. By contrast to earlier contributions, the absence of drying during the all process allows the GO material to be transferred as monolayers to limit UV scattering. The absence of UV scattering and absorption allows for fast and high‐resolution 3D printing. The chosen resin sustain high temperature to enable an in situ efficient thermal reduction of GO into reduced graphene oxide (rGO) that is electrically conductive. The rGO particles form percolated networks with conductivities up to 1.2 × 10 −2 S m −1 . The present method appears therefore as a way to reconcile the DLP technology with the manufacturing of 3D electrically conductive objects.
Fichier principal
Vignette du fichier
3D GO ChemRXiv.pdf (1.65 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04255023 , version 1 (23-10-2023)

Identifiants

Citer

David Tilve-Martinez, Wilfrid Neri, Dylan Horaud, Nicolas Vukadinovic, Benoit Berton, et al.. G raphene O xide B ased T ransparent R esins F or A ccurate 3D P rinting of C onductive M aterials. Advanced Functional Materials, 2023, 33 (21), ⟨10.1002/adfm.202214954⟩. ⟨hal-04255023⟩
14 Consultations
7 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More