| Abstract Scope |
Natural fiber-reinforced polymer (NFRP) composites have attracted increasing attention as sustainable alternatives to conventional synthetic composites. Despite significant advances in their mechanical performance, the influence of elevated temperatures on their structural integrity remains a critical challenge for engineering applications. This review presents a state-of-the-art assessment of the thermal and mechanical behavior of NFRP composites under high-temperature exposure. The effects of fiber type, polymer matrix, interfacial adhesion, and surface treatments on thermal stability, degradation mechanisms, residual mechanical properties, and fire performance are critically discussed. Recent experimental and numerical studies are compared to identify the main factors governing composite performance before, during, and after thermal exposure. Current limitations, research gaps, and future opportunities—including hybrid reinforcements, bio-based matrices, flame-retardant strategies, and predictive modeling—are also highlighted. This review provides a comprehensive framework for developing safer, more durable, and environmentally sustainable natural fiber composites for structural applications. |