宇航材料工艺2006，Vol.36Issue(1)：5-15,29,12.
自愈合机敏复合材料综述
An Overview on Self-Healing Smart Composites
李崇俊 1Alan Crosky2
作者信息
- 1. 西安航天复合材料研究所,中国,西安,710025
- 2. 新南威尔士大学材料科学与工程学院,澳大利亚悉尼,2052
- 折叠
摘要
Abstract
The crack healing by hollow fibre delivery of chemical adhesives, along with the recently formulated concept of self-healing smart composites, is reviewed in this paper. The latter, whereby the procedure of microcapsules induced crack self-healing, is thoroughly investigated. Discussion comprises a number of topics including the structures of healing agents and catalysts employed, microcapsule forming and exterior attachments with a catalyst, in-situ polymerisation kinetics, crack self-healing in neat epoxy and composites, healing efficiency and microscopes of healed composites. A typical dual phase self-healing system involves microencapsulated dicyclopentadiene (DCPD) performing ring-opening metathesis polymerization (ROMP) under an embedded Ru catalyst complex within an epoxy matrix. For neat epoxy resin the healing efficiency is as high as 90% at ambient temperature, while for carbon fabric reinforced composites it is approximately 45% at room temperature and up to 80% at 80℃. Norbornene (NB) and its derivates have a similar self-healing function. An un-catalysed thermal reversible reaction of a multi-furan and multi-maleimide can form endless re-mendable cross-linked polymerization to heal cracks automatically. A comparison of the characteristics of various self-healing agent systems and composites are proposed.关键词
机敏材料/愈合/修补/自愈合/聚合物基复合材料Key words
Smart materials/Healing/Repairing/Self-healing/Polymer matrix composites分类
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李崇俊,Alan Crosky..自愈合机敏复合材料综述[J].宇航材料工艺,2006,36(1):5-15,29,12.
