Article
  • A Novel Self-Healing Polyurethane with High Transparency and Strength: Effects of Multiple Supermolecular Forces

  • Yuan Liu, Yanmei Liao*, Yintao Long*, Yuxiang Qian**, Shengqiang Nie, Yi Wang, Jia Zeng, Chunmei Zhang, Linbo Tian, and Jun Luo†

  • Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province,
    Guiyang University, Guiyang 550005, China
    *State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
    **Shanghai Space Propulsion Technology Research Institute, No. 3888, Yuanjiang Road, Minhang District, Shanghai 201100, China

  • 높은 투명도와 강도를 갖는 자가치료용 Polyurethane: 복합 초분자 상호작용의 영향

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

It is a considerable challenge for expanding the applications of self-healing polyurethane because of the dilemma in balancing its mechanical and self-healing properties. Herein, a series of self-healing polyurethane systems (PUT-x) with short-range ordered rigid aromatic structures were synthesized by simply adjusting two kinds of diisocyanates, and by ingenious addition of aromatic chain extender. We hope to regulate the π-π interactions and further to manipulate the properties of obtained polyurethanes via adjusting the amount of the benzene rings in the molecular chains of the PUT-x systems. The PUT-5 with decent self-healing ability, optimal mechanical properties, acceptable thermal stability and favorable transparency was selected to incorporate liquid metal and fluorescent powder to fabricate conductive wire and anti-counterfeiting film. Significantly, the liquid metal could be recycled from the conductive wire conveniently without using strong acids or strong bases. Moreover, PUT-5 exemplarily withstood long-term soaking in normal saline, and no deformation could be identified.


Keywords: self-healing, polyurethane, π-π interaction, hydrogen bond, properties.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2022; 46(3): 327-341

    Published online May 25, 2022

  • 10.7317/pk.2022.46.3.327
  • Received on Nov 16, 2021
  • Revised on Mar 1, 2022
  • Accepted on Mar 12, 2022

Correspondence to

  • Jun Luo

  • Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province,
    Guiyang University, Guiyang 550005, China

  • E-mail: hx0029@gyu.edu.cn