动态共价热固性树脂及复合材料的研究进展  

Research progress in dynamic covalent thermosets and their composites based on dynamic covalent bonds

作　　者：吴剑桥 张雪利 张研 杨璐瑶 王梓轩 WU Jianqiao;ZHANG Xueli;ZHANG Yan;YANG Luyao;WANG Zixuan(School of Materials Science and Chemical Engineering,Chuzhou University,Chuzhou 239000,Anhui,China;School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]滁州学院材料与化学工程学院,安徽滁州239000 [2]合肥工业大学化学与化工学院,合肥230009

出　　处：《材料工程》2024年第11期23-34,共12页Journal of Materials Engineering

基　　金：国家自然科学基金青年基金项目(22205029);安徽省高等学校科研计划重点项目(2022AH051116,2023AH052840);国家级大学生创新创业训练计划重点领域项目(202310377028)。

摘　　要：纤维增强热固性树脂基复合材料具有高比强度、高比模量、耐热性好等优点,在航空航天等重要领域应用广泛。然而,其存在成型后无法重复加工以及材料回收处理困难的问题。通过将动态共价键引入交联树脂体系,可以制备得到动态共价热固性树脂,这类树脂具有可回收、可重塑等类似热塑性聚合物的动态性能,为解决上述问题提供了一种有效途径。本文介绍了动态共价热固性树脂的发展历程、基本特征及网络调控策略,简述了以其为基体的纤维增强复合材料基本特点,随后以动态共价键类型进行分类标准,综述了酯交换型、双硫交换型、亚胺交换型及其他键交换型热固性树脂及其纤维增强复合材料的研究进展,并概述了这类复合材料的发展趋势及商业化应用。最后总结了上述树脂及复合材料的未来发展方向并提出设计建议,为该材料的设计开发及商业化应用提供思路。Fiber reinforced thermosetting composites exhibit high strength-weight ratio,high modulusweight ratio,and good thermostability,and have been applied in many high-tech areas such as aerospace.However,these materials face extreme difficulty in reprocessing and recycling after the molding process.To solve the above problem,the dynamic covalent bonds are introduced into resin networks to design the dynamic covalent thermosets,exhibiting recyclability and remolding dynamic properties similar to thermoplastic polymers,providing an effective method.In this review,the development,characteristic,and network regulation strategies of thermosets with dynamic covalent bonds were introduced.The characteristics of fiber reinforced composites derived from these thermosets were summarized.Based on the classification of dynamic covalent bond type,the research progress of transesterification reactions,disulfide metathesis,imine metathesis,and other bond exchange thermosetting resins and fiber reinforced composites was reviewed.The development tendency and commercial applications of these composites were briefly overviewed.Finally,the future development direction and design suggestions of these thermosets and composites are concluded,providing ideas for the preparation and commercial application of these materials.

关 键 词：热固性树脂 树脂基复合材料 动态共价网络 动态共价键 键交换反应 

分 类 号：TB322[一般工业技术—材料科学与工程]