外援型自修复聚合物材料研究进展

Research progresses in extrinsic self-healing polymer materials

综述了近年来自修复聚合物材料的研究进展,根据自修复过程是否需要外加修复剂,聚合物基复合材料自修复方法主要包括外援型自修复和本征型自修复。结合近几年最新研究成果,归纳了几种典型的外援型自修复方法,主要包括空心纤维自修复、纳米粒子自修复、微胶囊自修复(双环戊二烯修复剂体系、环氧树脂修复剂体系等)、微脉管自修复、碳纳米管自修复等,系统阐述了这几种自修复方法的修复机理、自修复体系特点及研究现状。展望了自修复材料的研究前景:优化和开发新的修复剂体系以提高修复效率、实现真正意义上的仿生材料。

Research progress in self-healing polymer materials in recent years is summarized. According to the healing agents applied or not in the self-healing process,self-healing methods in polymer materials can be classified into extrinsic self-healing and intrinsic self-healing. Based on the latest research achievements,several typical extrinsic self-healing methods are summarized,including hollow-fiber self-healing,nanoparticle self-healing,microcapsule self-healing（dicyclopentadiene healing agent system,epoxy healing agent system）,microvessel self-healing and carbon nano-tube self-healing. Several extrinsic self-healing mechanisms,self-healing system characteristic and present research status are elaborated. Future research on self-healing materials is prospected,i.e.,optimizing and developing new healing agents system in order to improve the self-healing efficiency,and realizing the true biomimetic materials.