聊城大学学报（自然科学版）2026，Vol.39Issue(2)：255-262,8.DOI:10.19728/j.issn1672-6634.2025090004
生物基环氧树脂Vitrimer的制备及其闭环回收特性
Preparation of bio-based epoxy resin Vitrimer and its closed-loop recycling characteristics
摘要
Abstract
Epoxy resin is one of the most widely used thermosetting polymers,playing an indispensable role in aerospace and electronic packaging fields.However,its reliance on petroleum-based raw materials such as bisphenol A raises concerns over toxicity and non-recyclability,which significantly hinders the broader application and development of thermosetting resin-based composites.To address these issues,this study innovatively employs bio-based epoxy soybean oil and itaconic acid as raw materials to synthesize a novel bio-based epoxy Vitrimer through precise regulation of the crosslinking reaction between epoxy and carboxyl groups.A reversible crosslinked network formed via dynamic transesterification endowed the ma-terial with tensile strength of 1.71 MPa,elongation at break of 41%,and an ultrahigh adhesion strength of 6.1 MPa,enabling effective bonding of diverse substrates.The dynamic reversible network also impar-ted excellent reprocessability and physical-mechanical recyclability to the epoxy Vitrimer.After three cy-cles of hot pressing,the material retained 83%of its original mechanical strength.This design strategy based on bio-derived feedstocks and dynamic covalent bonds provides a promising pathway for developing next-generation high-performance green thermosetting resins with enhanced sustainability.关键词
生物基环氧树脂/动态共价化学/闭环回收/力学性能/黏附Key words
bio-based epoxy resin/dynamic covalent chemistry/closed-loop recycling/mechanical proper-ties/adhesion分类
化学化工引用本文复制引用
郑凯,胡杰,李春琳,刘霖,李成杰,马娟娟..生物基环氧树脂Vitrimer的制备及其闭环回收特性[J].聊城大学学报（自然科学版）,2026,39(2):255-262,8.基金项目
中国博士后科学基金项目(2024M751205) （2024M751205）
国家级大学生创新创业训练计划项目(Z202411641637019)资助 （Z202411641637019）
