结构用自修复型高分子材料的制备  

SELF-HEALING POLYMERIC MATERIALS TOWARDS STRENGTH RECOVERY FOR STRUCTURAL APPLICATIONS

作　　者：章明秋[1] 容敏智[1] 

机构地区：[1]中山大学聚合物复合材料和功能材料教育部重点实验室化学与化学工程学院材料科学研究所,广州510275

出　　处：《高分子学报》2012年第11期1183-1199,共17页Acta Polymerica Sinica

基　　金：国家自然科学基金(基金号U0634001;50903095;20874117;50573093和51073176);教育部博士点基金(基金号20090171110026);广东省科技计划项目(项目号2010B010800021)资助项目

摘　　要：自修复型高分子材料属于智能材料的一类,仿照生物体损伤自愈合的功能,通过材料内部的自诊断和自响应机制,及时修复材料在成型加工或使用过程产生的微小裂纹,避免其进一步扩展.近年来本课题组针对结构用自修复型高分子材料的强度恢复问题,综合利用高分子化学、高分子物理、材料力学等学科的理论和方法,设计、合成了一系列外植型和本征型自修复高分子材料,提出的自修复策略适用于典型热固性和热塑性高分子材料.此外,深入研究了相关的合成路线、配方优化、制备工艺、材料结构与性能、自修复的微观机制、使用稳定性等,为此类材料的实际应用提供依据.Living organisms possess the ability of self-healing for nonfatal harm, like regeneration of the cut skin and broken bone, guided by instinct. As a result, their injury tolerance is substantially enhanced, which ensures healthy growth and breeding from generation to generation. Inspired by the functionality of naturally occurring species,self-healing polymers have been prepared as a member of intelligent materials family. They are coupled with built-in capability of rehabilitating tiny damages produced during manufacturing and/or usage. In recent years, the authors＇ lab systematically studied strength recovery of self-healing polymeric materials for structural application. By using knowledge of polymer chemistry, polymer physics, materials mechanics, etc. , a series of extrinsic and intrinsic self-healing polymers and polymer composites were developed and characterized. The proposed strategies turn out to be feasible for typical thermosetting and thermoplastics polymers. Accordingly, topics including synthesis techniques, formulation optimization, processing, structure and properties relationship, healing mechanisms, stability and durability were carefully investigated. The present article briefly reviews the works carried out by the authors＇ team. Innovative routes that correlate materials chemistry to full capacity restoration are discussed for further development from bioinspired toward biomimetic repair.

关 键 词：自修复 微胶囊 热可逆性 光可逆性 

分 类 号：TB324[一般工业技术—材料科学与工程]