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ORIGINAL RESEARCH article

Front. Mater.
Sec. Polymeric and Composite Materials
Volume 11 - 2024 | doi: 10.3389/fmats.2024.1532067
This article is part of the Research Topic Development of High-Performance Resin Matrix Composites - Volume II View all articles

Preparation and Properties of Vanillin-based Polyurethane Materials for Body Temperature Self-healing

Provisionally accepted
Mingfu Fu Mingfu Fu 1*Jiangfeng Hu Jiangfeng Hu 1*Xiaochun Zhang Xiaochun Zhang 2*Chaozhang Wang Chaozhang Wang 3*Yang Liu Yang Liu 1*Jianzhuang Niu Jianzhuang Niu 1*Yinglu Sun Yinglu Sun 4*Dengzun Yao Dengzun Yao 5*Xianghai Jing Xianghai Jing 6*
  • 1 Pipe China West Pipeline Company, Urumqi, China
  • 2 Production Department of Pipe China, Beijing, China
  • 3 Pipe China Gansu Pipeline Company, Lanzhou, China
  • 4 Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), Changchun, China
  • 5 China Special Equipment Inspection & Research Institute, Beijing, China
  • 6 Lianyungang Jingwei Composite New Materials Co., Ltd, Lianyungang, China

The final, formatted version of the article will be published soon.

    It is difficult to obtain sustainable and fast self-healing polyurethane materials with excellent mechanical properties at low-temperature . In this work, we prepared a a series of bio-based polyurethane materials were synthesized with HMDI, Polytetramethylene ether glycol and a vanillin-based chain extender containing dynamic imine bonds. By adjusting the ratio of soft and hard segments, As the content of hard segments increased, the storage modulus and tensile strength of the material increased, the elongation at break decreased, and the heat resistance improved. The results showed that this advanced polyurethane displayed excellent mechanical and self-healing properties due to the presence of a large number of hard segment structures with dynamic imine bonds. Moreover, the tight arrangement of hydrogen bonds can promote the exchange of dynamic imine bonds and endow the material with body-temperature self-healing ability. It can recover to 98% of its original stress in 20 min at 36 °C.

    Keywords: Vanillin based Polyurethane, Microphase separation, self-healing, Body temperature (BT), Imine bond

    Received: 21 Nov 2024; Accepted: 02 Dec 2024.

    Copyright: © 2024 Fu, Hu, Zhang, Wang, Liu, Niu, Sun, Yao and Jing. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Mingfu Fu, Pipe China West Pipeline Company, Urumqi, China
    Jiangfeng Hu, Pipe China West Pipeline Company, Urumqi, China
    Xiaochun Zhang, Production Department of Pipe China, Beijing, China
    Chaozhang Wang, Pipe China Gansu Pipeline Company, Lanzhou, China
    Yang Liu, Pipe China West Pipeline Company, Urumqi, China
    Jianzhuang Niu, Pipe China West Pipeline Company, Urumqi, China
    Yinglu Sun, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), Changchun, China
    Dengzun Yao, China Special Equipment Inspection & Research Institute, Beijing, China
    Xianghai Jing, Lianyungang Jingwei Composite New Materials Co., Ltd, Lianyungang, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.