Title
Investigation of mechanical and thermal characteristics of banana fiber-reinforced polyester composites for automotive applications
Authors
A. N. BALAJI, M. K. V. KARTHIKEYAN, V. VIGNESH, K. J. NAGARAJAN and A. B. MADHAVAN

Received October 22, 2024
Published Volume 59 Issue 1-2 January-February
Keywords Nendran fiber rope mat, polyester composites, mechanical properties, thermal properties, eco-friendly materials, automotive applications, natural fiber composites

Abstract
This study investigates the mechanical and thermal properties of Nendran fiber rope mat (NFRM) reinforced polyester composites. The composites were fabricated and tested for tensile, flexural, and impact properties, as well as thermal conductivity and heat deflection temperature. Results show that composites prepared with Nendran fiber rope vertical mat (NFRVM) orientation exhibited superior tensile strength (51.9 MPa), flexural strength (261 MPa), and impact strength (22.3 KJ/m²) compared to other Nendran fiber forms and several other natural and synthetic fiber-reinforced composites. The Barcol hardness of NFRVM composites was the highest among the tested composites, indicating robust bonding and enhanced material rigidity. The thermal properties were also significantly improved. Scanning electron microscopy reveals strong fiber-matrix interactions in rope mat-oriented composites, indicating effective stress transfer and adhesion. These findings highlight the potential of NFRVM composites as a competitive and eco-friendly alternative to traditional glass fiber composites for various industrial applications, particularly in the automotive sector for components like engine guards. The enhanced mechanical and thermal properties, along with the eco-friendly nature of NFRVM composites, make them an attractive option for sustainable material development.