植物基生物质资源在自修复材料中的应用研究进展

Research progress on the application of plant-based biomass resources in self-healing materials

近年来,植物基生物质资源因具有来源广、可再生、可生物降解等特点而成为人们的研究热点。利用其制备或改性聚合物可缓解石化资源危机,提高聚合物材料的环境适应性;同时,其分子结构中富含的活性官能团和氢键使其用于自修复材料的制备与改性备受关注。以纤维素和木质素为例,综述了近几年植物基生物质资源在自修复材料中的应用,详细介绍了其自然特性及在自修复材料制备中的重要作用。此外,从分子结构的角度具体讨论了Diels-Alder反应、二硫键和氢键等动态化学键在自修复材料中的应用原理。最后,提出了植物基生物质资源用于自修复材料所面临的主要挑战和潜在的解决方案,展望了植物基生物质资源在未来自修复材料中的应用研究方向。

In recent years, plant-based biomass resources have become a research hotspot due to their wide range of sources, renewability, biodegradability and so on. The preparation or modification of polymers can further alleviate the petrochemical resource crisis and improve the environmental adaptability of polymer materials. Meanwhile, the active functional groups and hydrogen bonds are rich in the plant-based biomass resources, which have attracted much attention for its application in the preparation and modification of self-healing materials. Taking cellulose and lignin as examples, the application of plant-based resources in self-healing materials in recent years are reviewed, and their natural characteristics and their important roles in the preparation of self-healing materials are introduced in detail. In addition, the application principles of dynamic chemical bonds such as Diels-Alder reaction, sulfur-sulfur bond and hydrogen bond in self-healing materials are discussed from the point of view of molecular structure. Finally, the main challenges and potential solutions for the preparation of self-healing materials by plant-based biomass are put forward, and the research direction of the application of plant-based biomass materials in self-healing materials is prospected.