基于刚性基团与多重氢键协同的高强韧自修复环氧化天然橡胶

刘杰; 孙鹏; 郭小仟; 雷巍巍; 吴河生; 黄湘; 施德安

doi:10.11777/j.issn1000-3304.2025.25203

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基于刚性基团与多重氢键协同的高强韧自修复环氧化天然橡胶

研究论文 | 更新时间：2026-01-19

- 基于刚性基团与多重氢键协同的高强韧自修复环氧化天然橡胶
- High-strength, Tough, and Self-healing Epoxidized Natural Rubber Enabled by Synergistic Rigid Segments and Multiple Hydrogen Bonds
- 高分子学报 2025年56卷第12期页码：2381-2395
- 作者机构：
  
  湖北大学材料科学与工程学院功能材料绿色制备与应用教育部重点实验室高分子材料湖北省重点实验室武汉 430062
- 作者简介：
  
  E-mail: deanshi2012@hubu.edu.cn
- 基金信息：
  
  国家自然科学基金(基金号 52003077);广东省高性能与功能高分子材料重点实验室开放基金(基金号 20240002);新材料重大专项项目(2025ZD0614900)
- DOI：10.11777/j.issn1000-3304.2025.25203
  中图分类号：
- CSTR：32057.14.GFZXB.2025.7497
- 收稿：2025-08-26，
  
  录用：2025-10-14，
  
  网络出版：2025-11-28，
  
  纸质出版：2025-12-20
- 稿件说明：
移动端阅览
刘杰, 孙鹏, 郭小仟, 雷巍巍, 吴河生, 黄湘, 施德安. 基于刚性基团与多重氢键协同的高强韧自修复环氧化天然橡胶. 高分子学报, 2025, 56(12), 2381-2395

Liu, J.; Sun, P.; Guo, X. Q.; Lei, W. W.; Wu, H. S.; Huang, X.; Shi, D. A. High-strength, tough, and self-healing epoxidized natural rubber enabled by synergistic rigid segments and multiple hydrogen bonds. Acta Polymerica Sinica, 2025, 56(12), 2381-2395
刘杰, 孙鹏, 郭小仟, 雷巍巍, 吴河生, 黄湘, 施德安. 基于刚性基团与多重氢键协同的高强韧自修复环氧化天然橡胶. 高分子学报, 2025, 56(12), 2381-2395 DOI： 10.11777/j.issn1000-3304.2025.25203. CSTR： 32057.14.GFZXB.2025.7497.

Liu, J.; Sun, P.; Guo, X. Q.; Lei, W. W.; Wu, H. S.; Huang, X.; Shi, D. A. High-strength, tough, and self-healing epoxidized natural rubber enabled by synergistic rigid segments and multiple hydrogen bonds. Acta Polymerica Sinica, 2025, 56(12), 2381-2395 DOI： 10.11777/j.issn1000-3304.2025.25203. CSTR： 32057.14.GFZXB.2025.7497.

摘要

氢键由于具有动态属性在自修复橡胶弹性体领域广泛应用. 目前报道的单一氢键交联自修复橡胶受限于氢键的低结合能，普遍存在拉伸强度较低(通常低于3 MPa)的问题. 尽管氢键/共价键双网络结构可在一定程度上提高拉伸强度，但共价键的引入会削弱材料的自修复能力和可再加工性. 本工作通过在环氧化天然橡胶(ENR)中引入含刚性基团的多重氢键交联点，系统研究了该类交联点含量对ENR物理机械性能、自修复性能及抗裂纹性能的影响. 结果表明，该橡胶材料的断裂伸长率可超过1200%，拉伸强度可达10.38 MPa，断裂能达46.26 MJ/m

，并具备一定的自修复能力. 此外，该类氢键交联结构还显著提升了ENR的抗裂纹性能. 本工作不仅为高强韧自修复弹性体的设计提供了新思路，而且为抗裂纹材料的发展提供了参考.

Abstract

Hydrogen bonds are widely utilized in self-healing rubber elastomers due to their dynamic nature. However

single hydrogen-bond crosslinked self-healing rubbers reported to date generally exhibit low tensile strength (

3 MPa) due to the low binding energy of hydrogen bonds. While the hydrogen/covalent dual-network improves tensile strength to some extent

the introduction of covalent bonds sacrifices self-healing capability and reprocessability. In this work

we constructed multiple hydrogen-bond crosslinks containing rigid segments within epoxidized natural rubber (ENR) and systematically investigated the relationship between rigid hydrogen-bond crosslinker content and mechanical properties

self-healing behavior

and crack resistance of ENR. The results demonstrate that the resulting rubber achieves an elongation exceeding 1200%

a tensile strength of up to 10.38 MPa

and a fracture energy of 46.26 MJ/m

while retaining self-healing performance. Moreover

these hydrogen-bond crosslinks substantially enhance the crack resistance of ENR. This design strategy based on the synergistic rigid segments and multiple hydrogen bonds not only provides insights for developing strong and tough self-healing elastomers but also offers insights for designing crack-resistant materials.

关键词

Keywords

references

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