About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Natural Fibers and Biocomposites
|
| Presentation Title |
Mechanical properties of alkali treated sedge fiber-reinforced epoxy composites |
| Author(s) |
Lucas Mendonça Neuba, Sergio Neves |
| On-Site Speaker (Planned) |
Lucas Mendonça Neuba |
| Abstract Scope |
Lightweight composite materials, particularly those with fiber-reinforced polymer matrices, align well with current demands for combining low density with high mechanical strength. This has driven numerous studies focused on incorporating lignocellulosic natural fibers (NLFs) into polymeric matrices. In this context, the present study proposes the use of alkali-treated sedge fibers (Cyperus malaccensis) as reinforcement in an epoxy matrix composite. The mechanical performance was evaluated through Izod and Charpy impact tests. Morphological analysis of the fractured surfaces was performed to assess the influence of fiber treatment on failure mechanisms. The results revealed a significant improvement in impact resistance due to the alkali treatment. For example, the treated fiber group showed the highest impact energies, with values of 130.18 ± 27.18 J/m (Izod) and 121.98 ± 19.18 J/m (Charpy). SEM micrographs indicated a substantial reduction in interfacial delamination, suggesting enhanced fiber–matrix adhesion. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Sustainability, Mechanical Properties |