Graphene Oxide-Based Nanocomposites for Stereolithography (SLA) 3D Printing: Comprehensive Mechanical Characterization under Combined Loading Modes

Additive manufacturing, particularly Stereolithography (SLA), has gained widespread attention thanks to its ability to produce intricate parts with high precision and customization capacity. Nevertheless, the inherent low mechanical properties of SLA-printed parts limit their use in high-value appli...

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Bibliographic Details
Published inPolymers Vol. 16; no. 9; p. 1261
Main Authors Garcia, Guilherme Elias Saltarelli, de Sousa Junior, Rogerio Ramos, Gouveia, Julia Rocha, Dos Santos, Demetrio Jackson
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 01.05.2024
Subjects
3-D printers
3D printing
additive manufacturing
Analysis
Carbon
Chemical synthesis
Combined loading
combined loadings
Composite materials
Drucker–Prager model
Graphene
graphene oxide
Graphite
Lithography
Mechanical properties
Methods
nanocomposite
Nanocomposites
Nanomaterials
Nanoparticles
Oxides
Polymers
Radiation
Resins
Shear stress
Stereolithography
Tensile strength
Three dimensional printing
Brazil
United States > US
China
combined loadings
graphene oxide
nanocomposite
additive manufacturing
Drucker–Prager model
mechanical properties
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Summary:Additive manufacturing, particularly Stereolithography (SLA), has gained widespread attention thanks to its ability to produce intricate parts with high precision and customization capacity. Nevertheless, the inherent low mechanical properties of SLA-printed parts limit their use in high-value applications. One approach to enhance these properties involves the incorporation of nanomaterials, with graphene oxide (GO) being a widely studied option. However, the characterization of SLA-printed GO nanocomposites under various stress loadings remains underexplored in the literature, despite being essential for evaluating their mechanical performance in applications. This study aimed to address this gap by synthesizing GO and incorporating it into a commercial SLA resin at different concentrations (0.2, 0.5, and 1 wt.%). Printed specimens were subjected to pure tension, combined stresses, and pure shear stress modes for comprehensive mechanical characterization. Additionally, failure criteria were provided using the Drucker--Prager model.
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ISSN:2073-4360
2073-4360
DOI:10.3390/polym16091261