PDF(Pubmed)
Abstract：
Self-healing polymeric materials, engineered to autonomously self-restore damages from external stimuli, are at the forefront of sustainable materials research. Their ability to maintain product quality and functionality and prolong product life plays a crucial role in mitigating the environmental burden of plastic waste. Historically, initial research on the development of self-healing materials has focused on extrinsic self-healing systems characterized by the integration of embedded healing agents. These studies have primarily focused on optimizing the release of healing agents and ensuring rapid self-healing capabilities. In contrast, recent advancements have shifted the focus towards intrinsic self-healing systems that utilize their inherent reactivity and interactions within the matrix. These systems offer the advantage of repeated self-healing over the same damaged zone, which is attributed to reversible chemical reactions and supramolecular interactions. This review offers a comprehensive perspective on extrinsic and intrinsic self-healing approaches and elucidates their unique properties and characteristics. Furthermore, various self-healing mechanisms are surveyed, and insights from cutting-edge studies are integrated.
摘要：
自修复聚合材料,被设计为从外部刺激中自主自我恢复损伤，处于可持续材料研究的前沿。它们保持产品质量和功能以及延长产品寿命的能力在减轻塑料废物的环境负担方面起着至关重要的作用。历史上,关于自我修复材料开发的初步研究集中在以嵌入愈合剂的整合为特征的外在自我修复系统。这些研究主要集中在优化愈合剂的释放和确保快速自我修复能力。相比之下,最近的进展已将重点转移到内在的自我修复系统，该系统利用其固有的反应性和基质内的相互作用。这些系统提供了重复自我修复相同的受损区域的优势，这归因于可逆的化学反应和超分子相互作用。这篇综述提供了关于外在和内在自我修复方法的全面观点，并阐明了它们的独特性质和特征。此外，调查了各种自我修复机制，并整合了前沿研究的见解。
