Authors
Hang Xu, Tingting Liu, Yinghua Deng, Gongxuan Chen, Xiaoqiong Qi, Youling He, Jiaxin Li, Pandeng Li
Published in
Journal of agricultural and food chemistry. Volume 74. Issue 41. Pages 32475-32485. Oct 21, 2026.
Abstract
Biocomposites derived from agricultural waste and traditional polymers enable the valorization of biomass waste while reducing reliance on petroleum-derived feedstocks. However, achieving high biomass loading while maintaining excellent performance, recyclability, and processability remains a challenge. Herein, the gelation behavior of a polyimine vitrimer was regulated to achieve excellent casting flowability and rapid postcasting gelation, enabling the fabrication of biocomposites containing 80 wt % wheat straw waste. The biocomposites exhibited a well-dispersed microstructure and strong hydrogen-bonding interactions, resulting in mechanical properties superior to those of reported biocomposites at similar filler loadings. Their glass transition temperature reached 183 °C, exceeding that of commercial wood-plastic composites, while the coefficient of thermal expansion was reduced by 8-12-fold. They demonstrated outstanding solvent resistance, healing capability, and recyclability, retaining over 95% of tensile strength. They could also be readily processed into daily-use and decorative products through casting and hot pressing. This study promoted the utilization of agricultural wastes.
PMID:
42904979
Bibliographic data and abstract were imported from PubMed on 23 Oct 2026.
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