The search of biomass-based substitutes for fossil-based plastics has become a pressing task due to the severe long-term threats of plastic wastes to the ecosystem. However, the development in this area is strongly impeded by the high cost of biomass separation and the poor processability of unseparated biomass. Herein, we demonstrate, for the first time, an efficient and scalable method to generate greener plastics by directly integrating unseparated biomass waste (i.e., wood powder) with crosslinked covalent adaptable networks. Through a simple compression molding process, the wood biomass and polymer particles can be fused together to form a continuous material, which is endowed with repairability, reprocessibility, and closed-loop full recyclability. The method demonstrated in this work paves the way for largescale industrial production of environmentally friendly biomass- based plastics.

由于塑料废物对生态系统的严重长期威胁，寻找基于生物质的化石塑料替代品已成为紧迫的任务。但是，该领域的发展受到生物质分离成本高和未分离生物质加工性差的强烈阻碍。在此，我们首次展示了一种有效且可扩展的方法，该方法通过将未分离的生物质废弃物（即木粉）与交联的共价适应性网络直接集成在一起，从而生产绿色塑料。通过简单的压缩成型工艺，木材生物量和聚合物颗粒可以融合在一起，形成一种连续材料，具有可修复性，可再加工性和闭环完全可回收性。