Design & Fabrication of Bio-Composites Material for Automotive / Engineering Application

Abstract: The automotive and engineering sectors are undergoing a significant transition toward sustainability, driven by the need to reduce carbon footprints and improve fuel efficiency through vehicle lightweighting [1], [2]. This paper investigates the design and fabrication of biocomposite materials, which integrate natural fiber reinforcements—such as hemp, bamboo, jute, and fique—into various polymer matrices [3], [4]. We evaluate several manufacturing techniques, specifically compression molding, injection molding, and hand lay-up, which are selected based on production volume and geometric complexity [5], [6], [7].

Our findings indicate that these materials can achieve mechanical properties comparable to traditional synthetic composites; for instance, fique-epoxy biocomposites have demonstrated tensile strengths of approximately 36.6 MPa and flexural strengths of 21.2 MPa [3]. Furthermore, bio-hybrid structures using hemp and bamboo have exhibited impact energies as high as 18.33 J, significantly outperforming standard materials [4]. Despite challenges related to moisture absorption and fiber-matrix adhesion, the high thermal stability (up to 430.6 °C) and carbon-neutral lifecycle of these composites make them essential for the future of "green" manufacturing and industrial recyclability [4], [7], [8].

Keywords: Biocomposites; Natural Fibers; Automotive Engineering; Sustainable Materials; Lightweighting; Mechanical Characterization; Green Manufacturing; Polymer Matrices.