摘要
Vitrimer材料通过引入共价键自适应性网络(CANs),在光或热的条件下,可激活共价键的键交换反应,实现分子链的断裂和重组,从而改变热固性材料交联网络的拓扑结构,赋予vitrimer热固性材料较好的可加工性,为热固性材料的回收再利用提供了全新的研究思路。结合近年来vitrimer材料的研究进程,综述了vitrimer材料的研究背景和特性,阐述了基于酯交换、亚胺交换、二硫键交换和多重动态键的vitrimer材料的机制及其性能,结合工业界vitrimer的应用场景,阐述了vitrimer在可回收型防火材料、粘合剂和3D打印上的应用研究进展,并对vitrimer材料的发展前景进行展望。
Vitrimer materials have the capability to trigger covalent bond exchange reactions under both light and heat conditions.This is achieved by introducing covalent bond adaptive networks(CANs)which bring about molecular chain breakage and recombination.As a result,this brings about a change in the topological structure of thermosetting cross-linking networks,thus granting thermosetting materials with superior processability.This breakthrough provides a novel research approach for recycling and reusing thermosetting polymers.Around the research process of vitrimer materials in recent years.It summarizes and comments objectively on the research background and characteristics of vitrimer materials.It also elaborates on the mechanism and performance of vitrimer materials based on ester exchange,imine exchange,disulfide bond exchange,and multiple dynamic bonds.Additionally,it lists the advances in research on vitrimer in recyclable fireproof materials,adhesives,and 3D printing.The paper explores the application scenarios of vitrimer in the industry and analyses the potential development prospects of vitrimer materials.
作者
高子昂
赫玉欣
黄烈然
杜厚义
张瑞麟
刘虎
刘春太
GAO Zi'ang;HE Yuxin;HUANG Lieran;DU Houyi;ZHANG Ruilin;LIU Hu;LIU Chuntai(National Engineering Research Center for Advanced Polymer Processing Technology,Zhengzhou University,Zhengzhou,Henan 450002,China;Key Laboratory of Materials Processing and Mold,Ministry of Education,Zhengzhou University,Zhengzhou,Henan 450002,China;College of Materials Science and Engineering,Henan University of Science and Technology,Luoyang,Henan 471023,China)
出处
《塑料》
CAS
CSCD
北大核心
2024年第5期103-107,共5页
Plastics
基金
国家重点研发计划“变革性技术关键科学问题”重点专项(2019YFA0706802)
河南省自然科学基金(232300420084)
河南省大学生创新创业训练计划(202310464010)。
