具有自修复能力的聚合物材料

Self-Healing Polymeric Materials

各项性能已经达到工程材料指标要求的聚合物材料 ,在使用过程中不可避免地会产生裂纹 ,进而在使用过程中包藏着隐患 ,直至丧失使用价值。裂纹的早期修复 ,特别是自修复是一个现实而重要的问题。本文介绍了两类修复机制 ,即共价键与非共价键愈合 ,重点分析了近年来按共价键机理愈合、具有自修复能力的聚合物材料的研究成果、优缺点及发展前景。

During the use of polymeric materials,crack and damage always occur unavoidably,which will even result in the lost of materials' use value.It is a practical and vital problem to repair or self-repair the fractures.In this paper,two types of repair mechanisms-covalent bond repair and non-covalent bond repair are introduced.The recent research findings,advantages and disadvantages as well as the developing prospect for the polymeric materials with the healing mechanism of covalent bond and auto-repair ability are analyzed for emphasis.