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Biomimetic self-reinforcing recyclable biomass-derived inherently-safe sustainable materials
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Biomimetic self-reinforcing recyclable biomass-derived inherently-safe sustainable materials
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Journal Article
Biomimetic self-reinforcing recyclable biomass-derived inherently-safe sustainable materials
2025
Overview
Biomass-derived recyclable materials that can replace petrochemical-derived plastics are highly sought for a sustainable future. However, incumbent materials often face performance deterioration challenges owing to the aging issues after use in the environment. Here, we present a self-reinforcing, recyclable, unprecedented polyester material derived entirely from biomass lignin and soybeans, mimicking the self-reinforcement mechanism of biological systems. Our material leverages a [2 + 2]-cycloaddition reaction mediated by aromatic π-conjugated vinylidene structures, enhancing performance under ultraviolet light, hygrothermal conditions, and external electric fields. Specifically, the tensile strength, elongation at break, and anti-ultraviolet efficiency can be enhanced to 103 MPa, 560%, and 73%, respectively, far surpassing those of known biomass-derived materials and engineered plastics. Additionally, the material demonstrates outstanding insulativity, barrier properties, flame retardancy, solvent resistance, and recyclability, meeting the demands of sustainable green new energy material. Our strategy for this self-reinforcing biomass recyclable material provides rich possibilities for designing next-generation sustainable materials.
Most bio-derived polymers deteriorate during environmental exposure. Here, the authors report a bio-derived polyester containing aromatic p-conjugated vinylidene units, these provided self-reinforcement through [2 + 2] cycloadditions, leading to mechanical enhancements during ageing.
