A fibrous cellulose paste formulation to manufacture structural parts using 3D printing by extrusion - Université Grenoble Alpes Accéder directement au contenu
Article Dans Une Revue Carbohydrate Polymers Année : 2019

A fibrous cellulose paste formulation to manufacture structural parts using 3D printing by extrusion

Résumé

An optimized paste based on short natural cellulose fibers combined with carboxymethyl cellulose at a high dry content (42 wt.%) was implemented as a bio-based material for 3D printing by extrusion. The homogeneous paste exhibited a pronounced thinning behavior and yield stress; it was extruded using a screw extrusion-based direct ink writing system and could easily flow through a small nozzle. The optimized formulation enabled accurate additive manufacturing of parts using a natural air-drying process with or without an ethanol bath. We characterized the anisotropic shrinkage that occurred during the drying of 3D printed parts and proposed a compensation method to account for it. The obtained results emphasized that cellulose had a strong potential to be used as a raw material for 3D printing of cheap, lightweight, robust, and recyclable parts.
Fichier principal
Vignette du fichier
S014486171930089X.pdf (696.51 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-02021646 , version 1 (22-10-2021)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

C. Thibaut, A. Denneulin, S. Rolland Du Roscoat, D. Beneventi, L. Orgeas, et al.. A fibrous cellulose paste formulation to manufacture structural parts using 3D printing by extrusion. Carbohydrate Polymers, 2019, 212, pp.119-128. ⟨10.1016/j.carbpol.2019.01.076⟩. ⟨hal-02021646⟩
227 Consultations
137 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More