| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Natural Fibers and Biocomposites: A Sustainable Solution
|
| Presentation Title |
Enhancing the Properties of Polyester Composites Using Unidirectional Acetylated Fibers from Luffa Cylindrica |
| Author(s) |
Eduarda Chiabai R. de Melo, Heliane R. Amaral, Roseméri Barbosa dos Santos da Silva, Verônica Scarpini Cândido, Felipe Perissé Duarte Lopes, Sergio Neves Monteiro, Michel Picanço Oliveira |
| On-Site Speaker (Planned) |
Michel Picanço Oliveira |
| Abstract Scope |
Polymeric composites reinforced by lignocellulosic fibers are an eco-friendly option for various applications that utilize the benefits of natural fibers and polymers to create materials with improved mechanical properties and minimal environmental impact. In this study, we acetylated unidirectional fibers from Luffa cylindrical and incorporated them into a polyester matrix. X-ray diffraction and Fourier-transform infrared spectroscopy analyses confirmed the success of the acetylation process, replacing hydroxyl groups with acetyl groups. Moreover, thermal analysis showed that the acetylated fibers had no mass loss up to 200°C, indicating their hydrophobic nature. Scanning electron microscopy displayed an excellent interface between the acetylated fibers and the polymeric matrix. The Charpy impact resistance for the acetylated fibers showed a remarkable 1865% increase compared to pure polyester. Additionally, the composite with acetylated fibers absorbed only 2.54% of water. These results demonstrate that lignocellulosic fibers' in situ acetylation process offers a more sustainable alternative to synthetic fibers. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Composites, Polymers |