• 2026-05-08
• E.A Idung, D.O. Fakorede
• Volume 2, Issue 1

Abstract

The rising environmental burden of fossil fuels in automotive supply chains, combined with the limited mechanical performance and durability of natural fibre composites, presents a significant hurdle to sustainable vehicle production. This review critically examines hybrid composites that blend natural fibres (e.g., flax, jute, hemp) with synthetic ones (glass, carbon) as a viable alternative for automotive use. Review of key influential properties affecting the hybridization of composites were carried out including—tensile strength, impact resistance, moisture uptake, and thermal stability—for semi structural and interior components. The findings indicate that optimised fibre ratios and improved interfacial bonding via chemical treatments yield hybrids with strong eco-efficiency, mechanical performance on par with traditional glass-fibre composites, and up to 30% lower carbon emissions. Ongoing challenges include poor fibre-matrix adhesion, inconsistent natural fibre quality, and long-term durability near engines. Recent advances involve nano enhanced coupling agents, predictive modelling of hybrid layering, and life cycle assessments. Key research gaps remain, notably recyclability of mixed fibre systems and scalable production methods. This review provides a framework for developing lightweight, cost-effective, and sustainable hybrid composites that align with automotive sector demands and circular economy principles

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