Adipic Acid-based Epoxy Vitrimer and Its Glass Fiber Reinforced Composites

WANG Zong-tao; QIU Yu-hao; LI Zheng-jie; CUI Zhi-bo; ZHAO Ya-qi; FENG Qiao

doi:10.14028/j.cnki.1003-3726.2025.25.155

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Adipic Acid-based Epoxy Vitrimer and Its Glass Fiber Reinforced Composites

更新时间：2025-09-23

- Adipic Acid-based Epoxy Vitrimer and Its Glass Fiber Reinforced Composites
- Polymer Bulletin Vol. 38, Issue 10, Pages: 1546-1556(2025)
- 作者机构：
  
  1.河南城建学院材料与化工学院，平顶山 467000
  2.太原理工大学轻纺工程学院，太原 030600
  3.河南瑞朗达新材料有限公司，平顶山 467000
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2025.25.155
  CLC：
- Received：25 May 2025，
  
  Accepted：19 July 2025，
  
  Published Online：01 September 2025，
  
  Published：20 October 2025
- 稿件说明：
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王宗涛, 邱玉浩, 李政洁, 崔智博, 赵亚奇, 冯巧. 己二酸基环氧树脂类玻璃高分子及其玻纤增强复合材料. 高分子通报, 2025, 38(10), 1546–1556.

Wang, Z. T.; Qiu, Y. H.; Li, Z. J; Cui, Z. B.; Zhao, Y. Q.; Feng, Q. Adipic acid-based epoxy vitrimer and its glass fiber reinforced composites. Polym. Bull. (in Chinese), 2025, 38(10), 1546–1556.
王宗涛, 邱玉浩, 李政洁, 崔智博, 赵亚奇, 冯巧. 己二酸基环氧树脂类玻璃高分子及其玻纤增强复合材料. 高分子通报, 2025, 38(10), 1546–1556. DOI： 10.14028/j.cnki.1003-3726.2025.25.155.

Wang, Z. T.; Qiu, Y. H.; Li, Z. J; Cui, Z. B.; Zhao, Y. Q.; Feng, Q. Adipic acid-based epoxy vitrimer and its glass fiber reinforced composites. Polym. Bull. (in Chinese), 2025, 38(10), 1546–1556. DOI： 10.14028/j.cnki.1003-3726.2025.25.155.

摘要

己二酸作为高分子材料合成的重要原料，可用于构建具有拓扑结构重组能力的环氧类玻璃高分子(vitrimer)。本研究系统阐明了己二酸/环氧树脂体系的固化反应机理与网络结构特征，通过分子热运动分析和流变测试揭示了材料的热可逆交联行为与黏弹弛豫规律。针对传统环氧vitrimer材料的本征脆性问题，采用玻璃纤维进行增强增韧改性。实验结果表明，所制备的复合材料在保持动态共价网络的同时，拉伸强度提高100%，断裂伸长率增加200%，实现了界面化学键作用、纤维桥联效应和网络拓扑重构等多重增韧机制的协同效应。研究不仅从分子层面阐明了羧酸基vitrimer材料的结构-性能关系，更通过复合改性技术显著提升了材料的力学性能，为解决己二酸产能过剩问题提供了创新解决方案，对促进绿色循环经济发展具有重要工程应用价值。

Abstract

Adipic acid is a critical raw material for polymer synthesizing

and can be used to prepare vitrimer materials with topological structure rearrangement. Through molecular thermal motion analysis and rheological characterization

the thermally reversible crosslinking behavior and viscoelastic relaxation law of the material were revealed. To address the intrinsic brittleness of conventional epoxy vitrimers

glass fibers were introduced for reinforcement and toughening. The composite maintains its reversible network structure while doubling the tensile strength and tripling the elongation at break. This performance improvement arises from synergistic interactions among multiple toughening mechanisms

including interfacial chemical bonding

fiber-bridging effects

and network topological

reorganization. The research reveals the molecular-level structure-property relationship of carboxylic acid-based vitrimers and achieves breakthrough mechanical performance

via

composite modification. This innovative approach provides a sustainable solution to address adipic acid overcapacity while demonstrating significant engineering value for promoting green circular economy development. The developed material shows promising potential for industrial applications requiring recyclable high-performance polymers.

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references

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