About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
|
| Presentation Title |
STRUCTURAL CHARACTERIZATION OF POLYMER COMPOSITES WITH DIFFERENT GRAPHENE OXIDE CONTENTS VIA RAMAN SPECTROSCOPY |
| Author(s) |
Clicia Fonseca, Lucio Fabio Cassiano Nascimento, Sergio Neves Monteiro |
| On-Site Speaker (Planned) |
Clicia Fonseca |
| Abstract Scope |
Raman spectroscopy was used to investigate the structural impact of graphene oxide (GO) on epoxy resin composites. Composites were prepared with 0.1%, 0.2%, and 0.5% GO content. Using a 532 nm laser, characteristic D and G bands were observed, and their intensity ratio (ID/IG) was calculated to assess structural disorder. The composite with 0.2% GO exhibited the lowest ID/IG ratio (1.03), indicating a reduction in structural defects. Conversely, both lower (0.1%) and higher (0.5%) GO concentrations led to increased ID/IG values, suggesting either an excess of defects or GO agglomeration. These findings highlight an optimal GO concentration for maintaining the structural integrity of the composites. This study demonstrates that Raman spectroscopy is a valuable tool for identifying subtle structural modifications, aiding in the optimization of composite formulations for improved performance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Characterization, Sustainability |