A Short Review on Self‐Healing Thermoplastic Polyurethanes
A Short Review on Self‐Healing Thermoplastic Polyurethanes
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DOI：
10.1002/macp.202100002
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发表时间：
2021-03
影响因子：
2.5
通讯作者：
Yuan Yao;Meng Xiao;Wenguang Liu
中科院分区：
文献类型：
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作者：
Yuan Yao;Meng Xiao;Wenguang Liu
热塑性聚氨酯（TPU）是一种熔融加工聚合物，具有高弹性、高拉伸强度、耐低温、耐磨、耐腐蚀能力。TPU可用于汽车工业、电子、医疗用品、涂料和运动器材。自修复性能的引入为TPU的使用寿命和可回收性做出了相当大的贡献。本文对自修复超分子热塑性聚氨酯的研究进展进行了综述。特别是，总结了聚合物设计中由共价键和非共价相互作用控制的自修复机制的重要性，该机制允许平衡机械性能和可修复性。还讨论了与自修复超分子TPU相关的关键问题和挑战。
Thermoplastic polyurethane (TPU) is a melt‐processing polymer with a high elasticity, high tensile strength, low‐temperature resistance, wear‐resistance, and corrosion resistance ability. TPU can be used in the automotive industry, electronics, medical supplies, coatings, and sports equipment. Introduction of self‐healing performance has made a considerable contribution to the service life and recyclability of TPU. The present article analyzes recent progress in self‐healing supramolecular TPUs. In particular, the importance of self‐healing mechanisms governed by covalent bonds and non‐covalent interactions in polymer design that allows for balancing mechanical performance and repairability is summarized. The critical issues and challenges associated with self‐healing supramolecular TPUs are also discussed.