Progress in Structural Design and Multifunction of Bio-based Epoxy Resin Composites Containing Dynamic Bonds
DOI:
https://doi.org/10.12974/2311-8717.2025.13.07Keywords:
Bio-based epoxy, Dynamic covalent chemistry, Dynamic bond, Composite, Recyclability, Self-healing capability, MultifunctionAbstract
Epoxy thermosets are widely used in coatings, adhesives, and composites because of their excellent mechanical strength, chemical resistance, and dimensional stability. However, their petroleum-based origin and permanent crosslinking raise concerns regarding environmental impact and human health. Bio-based epoxy systems and dynamic covalent chemistry (DCC) have therefore emerged as promising strategies to achieve sustainability and recyclability. Although many studies have explored dynamic epoxy networks, most reviews emphasize resin-level properties rather than their behavior in composite systems. This review aims to provide a focused and comprehensive overview of bio-based epoxy composites containing dynamic bonds, clarifying how dynamic exchange mechanisms influence molecular design and multifunctional performance. Key findings highlight the synergistic roles of different dynamic chemistries in enabling reprocessability, self-healing, recyclability, and enhanced structural robustness. By identifying structure–property relationships across various composite strategies, this review fills a critical gap in the literature and offers guidance for the rational design of next-generation biodegradable epoxy composites.
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