Development and applications of bioepoxies for green materials

Le résumé fourni par la source

The growing demand for sustainable materials has intensified research into bio-based thermosetting polymers as alternatives to conventional petroleum-derived systems. Epoxy resins, widely used in coatings, adhesives, composites, and electronics, are traditionally synthesized from fossil resources, raising environmental and health concerns due to their non-renewability and toxicity. Bioepoxies, derived from renewable feedstocks such as vegetable oils, lignin, and tannins offer a promising pathway to reduce environmental impact while maintaining key performance characteristics: tannins provide aromatic structures for high thermal stability and flame resistance; lignin is abundant and inexpensive, yielding reactive phenolics through depolymerization; while vegetable oils are cost-effective and easily modified for coatings and adhesives. However, challenges remain, including the heterogeneity and solubility of tannins, the high viscosity and variable reactivity of lignin, and the lower mechanical and thermal performance of vegetable oil-based epoxies. Continued progress in chemical modification and curing strategies will be essential to improve performance. Overall, bio-based epoxies show strong potential to replace BPA-based resins and contribute to sustainable polymer development.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.