| About this Abstract |
| Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Presentation Title |
Digital Light Processing of Solvent-Free Graphite Nanoparticles and Edge-Oxidized Graphite Oxide-Acrylic Nanocomposites |
| Author(s) |
Poom Narongdej, Nicolas Alterman, Manuel Vazquez, Mehran Tehrani, Ehsan Barjasteh |
| On-Site Speaker (Planned) |
Poom Narongdej |
| Abstract Scope |
Digital Light Processing (DLP)-based vat photopolymerization additive manufacturing offers high-resolution and rapid printing, ideal for intricate geometries. However, material limitations, particularly low mechanical properties, hinder its wider use. This study introduces a novel, solvent-free approach to incorporate carbon-based nanoparticles into DLP resins, thereby enhancing both printability and material properties. Ten acrylic monomers, selected based on their Hansen solubility parameters, effectively disperse and stabilize graphite nanoparticles (GNPs) and edge oxidized graphene oxide (EOGOs) within the resin matrix. The resulting nano-filled resins exhibit stability over a seven-day observation period and likely beyond. Investigation into parameters such as layer exposure time, nanoparticle concentration, and size reveal significant enhancements in printability, viscosity, depth of cure, and mechanical properties. Optimal parameters lead to a 28% increase in modulus of elasticity and a 24% increase in tensile strength. This efficient method not only diversifies material choices but also enhances properties within DLP resins, thereby expanding their potential applications across diverse fields. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |