自修复超疏水多功能协同作用涂层研究进展
收稿日期: 2018-09-19
网络出版日期: 2018-12-19
基金资助
中央高校基本科研业务费专项资金(JUSRP21115)
版权
Research Progress in Self-Healing Superhydrophobic Multifunctional Synergistic Coatings
Received date: 2018-09-19
Online published: 2018-12-19
Copyright
自修复超疏水涂层是近年来多功能涂层研究的热点之一。文中总结了超疏水自修复涂层的修复机理,包括表面形貌的恢复和低表面能物质的补充。表面形貌的恢复可采用动态化学键和气体补偿来实现;低表面能物质的补充依靠在外界条件刺激下表面能驱动底层的低表面能物质迁移至涂层表面。目前有利用形状记忆合金实现大尺度结构损伤自修复、减少对外界刺激依赖实现自主自修复进程、利用分子结构设计自修复、多层光滑浸渍多孔表面(SLIPS)设计自修复等新的研究方向。同时介绍了自修复超疏水性能结合其他功能的多功能协同作用涂层的应用,包括超疏水自修复多功能纤维、超疏水防腐蚀自修复涂层和超疏水导电自修复涂层,各个功能间不是简单的叠加而是协同作用使涂层整体性能达到最佳,这为多功能涂层的设计提供了新思路。最后展望了自修复超疏水涂层的发展方向。
乔燕芳 , 王利强 , 刘晓伟 . 自修复超疏水多功能协同作用涂层研究进展[J]. 涂料工业, 2018 , 48(11) : 79 -87 . DOI: 10.12020/j.issn.0253-4312.2018.11.79
Self-healing superhydrophobic coatings can extend the service life of coatings, which is one of the hottest research topics in recent years. The mechanism of superhydrophobic self-healing coatings is summarized, including the restoration of surface morphology and the supplement of low surface energy components. The recovery of surface topography can be achieved through dynamic chemical bonding and gas compensation. The supplement of low surface energy components relies on the surface energy to drive the underlying low surface energy components to migrate to the surface of the coating under stimulus conditions. At present, there are new research directions such as the use of shape memory alloys for self-healing large-scale surface structures, reducing dependence on external stimuli to achieve autonomous self-healing processes, self-repairing with molecular structures, and self-healing multi-layer slippery liquid infused porous surface (SLIPS) design. The synergic effect of the multiple functions is introduced, which promotes the overall performance of the coating to be optimal. The synergic effect of superhydrophobic self-healing multifunctional fiber, superhydrophobic anticorrosive self-healing coating and superhydrophobic conductive self-healing coating are introduced. This provides new ideas for the design of multifunctional coatings. Finally, the prospects of the self-healing superhydrophobic coatings are put forward.
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