Epoxy thermosets are essential in composites but face sustainability concerns due to their fossil-based origins, reliance on Bisphenol A (BPA) and Epichlorohydrin (ECH), and poor recyclability. This study develops BPA- and ECH-free, bio-based, and recyclable epoxy systems. A fully bio-based epoxy from epoxidized linseed oil (ELO) and tannic acid (TA) is investigated, and carbon fiber (CF) composites made with it are characterized. Additionally, a novel 68.4% bio-based, recyclable epoxy (EGCHC) is synthesized. Benefits and challenges are discussed.
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Epoxy thermosets are essential in composites but face sustainability concerns due to their fossil-based origins, reliance on Bisphenol A (BPA) and Epichlorohydrin (ECH), and poor recyclability. This study develops BPA- and ECH-free, bio-based, and recyclable epoxy systems. A fully bio-based epoxy from epoxidized linseed oil (ELO) and tannic acid (TA) is investigated, and carbon fiber (CF) composites made with it are characterized. Additionally, a novel 68.4% bio-based, recyclable epoxy (EGCHC) i...
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