Effect of Alumina on Epoxy Composites with Banana Fiber: Mechanical, Water Resistance and Degradation Property Analysis

This ground-breaking research embarks on a journey to explore the transformative capabilities of Musa acuminata fiber-reinforced epoxy composites enriched with the enchanting prowess of alumina particles. The primary goal is to provide invaluable insights into the performance and potential applications of these eco-materials. Through the skilled craftsmanship of a compression molding machine, the composites were prepared meticulously and infused with different weight percentages of alumina particles (5%, 10%, and 15%) in the epoxy matrix, along with treated and untreated Musa acuminata fibers. TBA10 samples emerged as the champions among the compositions tested, showcasing the TES and FLS at an impressive 45.78 MPa and 76.97 MPa, respectively. On the other hand, the esteemed TBA15 sample exhibited an exceptional IMS of 60.8 kJ/m(2). SEM painted a mesmerizing picture, revealing a robust bond between the reinforcement and the medium. The incorporation of Al2O3 powder resulted in significantly reduced fiber pull-outs and voids, reinforcing the composite's structural integrity. Intriguingly, the water absorption behavior of the TBA10 sample stood out, boasting a mere 24% water absorption percentage, underscoring its remarkable water-defying capabilities. The degradation of lignin occurred at higher temperatures, approximately 415 C-degrees for untreated composites (UB) and 450 C-degrees for TBA15 composites. This enhancement in thermal stability testified to the profound impact of alumina infusion. By evaluating biodegradation behavior through soil burial tests, TBA15 showcased its resilience, exhibiting minimal strength loss, with only a 9.65% reduction in TES, 15% reduction in FLS, and 6.77% reduction in IMS.