基于CANs的Vitrimer材料的进展及应用  

Research and ApplicationStatus of Epoxy Vitrimer Materials Basedon Covalent Adaptable Networks(CANs)

作　　者：高子昂 赫玉欣[1,2,3] 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)

机构地区：[1]郑州大学,橡塑模具国家工程研究中心,河南郑州450002 [2]郑州大学,材料成型及模具技术教育部重点实验室,河南郑州450002 [3]河南科技大学,材料科学与工程学院,河南洛阳471023

出　　处：《塑料》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)。

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.

关 键 词：热固性高分子材料 vitrimer 共价适应性网络 键交换反应 回收 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]