Corn stover, as an abundant agricultural residue, has not been well reutilized due to the lack of efficient utilization methods. Based on micro/nanoscale structure design of corn stover, we report an environmentally friendly strategy to prepare micro/nanostructured corn stover-based building blocks. Then, through the directed deformation assembly approach, a high value-added corn stover structural material (CSSM) that with higher strength and more excellent thermal stability than most widely used plastics and wood-plastic composites can be prepared. The entire production process is green and economical, and the life cycle assessment (LCA) results indicate that it is a low-carbon emission, sustainable material. Moreover, CSSM can be composed with nanoscale building blocks to achieve multifunctionality. For example, by incorporating carbon nanotubes, we prepare a corn stover structural material with Joule-heating effects for indoor thermal management. This broadens the range of applications for corn stover-based structural materials.

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来自微/纳米结构玉米秸秆的可持续高性能结构材料


玉米秸秆作为一种丰富的农业废弃物，由于缺乏有效的利用方法，尚未得到很好的再利用。基于玉米秸秆的微/纳米结构设计，我们报道了一种制备基于微/纳米结构玉米秸秆构建块的环保策略。然后，通过定向变形装配方法，可以制备出一种高附加值的玉米秸秆结构材料 （CSSM），该材料比大多数广泛使用的塑料和木塑复合材料具有更高的强度和更优异的热稳定性。整个生产过程绿色经济，生命周期评估 （LCA） 结果表明它是一种低碳排放、可持续的材料。此外，CSSM 可以由纳米级构建块组成，以实现多功能性。例如，通过结合碳纳米管，我们制备了一种具有焦耳热效应的玉米秸秆结构材料，用于室内热管理。这拓宽了玉米秸秆基结构材料的应用范围。