Review on Research Progress on Bio-Based Self-Healing Polyurethane

IF 8.7 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2025-09-15 DOI:10.1021/acsmaterialslett.5c01153

Hongyu Feng, , , Yuli Wang, , , Ting Zhang, , , Jiangbo Wang, , , Zhixin Jia*, , , Shaohua Jiang*, , and , Xiaoshuai Han*,

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Abstract

Self-healing polyurethane (SHPU) shows great potential in enhancing materials’ durability and sustainability, yet balancing robust mechanical properties with efficient self-healing under mild conditions remains challenging. Conventional approaches often sacrifice strength or healing ability. This Review focuses on the key role of biomass-derived materials, including lignin, cellulose, chitosan, and vegetable oils, in resolving this conflict. Acting as dynamic network modifiers, multifunctional enhancers, and microstructural regulators, they enable sacrificial bonding, microphase separation, and improved chain mobility. Biomass-based SHPUs can achieve over 90% self-healing efficiency at room temperature while maintaining strength and toughness and even incorporate additional functions like flame retardancy or conductivity. Moreover, biomass enhances sustainability by reducing fossil resource dependence and promoting recyclability. Despite challenges in performance consistency and raw material variability, molecular engineering offers a promising path toward high-performance, sustainable SHPUs for advanced manufacturing and a circular economy.

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生物基自修复聚氨酯的研究进展

自修复聚氨酯（SHPU）在增强材料耐久性和可持续性方面显示出巨大的潜力，但在温和条件下平衡强大的机械性能和有效的自修复仍然是一个挑战。传统的治疗方法往往会牺牲力量或治疗能力。本文综述了木质素、纤维素、壳聚糖和植物油等生物质衍生材料在解决这一矛盾中的关键作用。作为动态网络调节剂，多功能增强剂和微结构调节剂，它们可以实现牺牲键合，微相分离和改善链迁移率。基于生物质的shpu可以在室温下实现90%以上的自愈效率，同时保持强度和韧性，甚至还具有阻燃或导电性等附加功能。此外，生物质通过减少对化石资源的依赖和促进可回收性来增强可持续性。尽管在性能一致性和原材料可变性方面存在挑战，但分子工程为先进制造和循环经济提供了高性能、可持续的shpu。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.