自修复防腐涂层的研究现状

通过物理屏蔽作用把金属和腐蚀环境进行隔绝的有机涂层，由于其经济、有效和操作方便的特点而成为主要的防腐措施。然而，环境因素往往不可避免地导致涂层产生裂纹，并最终导致涂层失效。具有自修复能力的涂层在发生破损后，由于其能够主动的修复涂层的破损部位而得到了广泛的关注。相对于具有单一物理屏蔽性能的涂层，具有自修复性能的涂层可以降低破损涂层维修期间的人力和物力成本，在未来的发展中具有很大的潜力。本文根据自修复涂层的愈合机理及其发展历程，把自愈合涂层分为自主修复型、借助外部刺激的非自主修复型和针对特定环境能够做出有效响应的智能自修复涂层，并对其研究现状及优缺点进行阐述。

Research status of self-repairing anticorrosive coatings

Organic coatings, which isolate metal from corrosive environment through physical shielding, have become the main anti-corrosion measures because of their economic, effective and convenient operation. However, environmental factors often inevitably lead to cracks in the coating and eventually lead to the failure of coating. After the coating with self-repair ability is damaged, it has attracted extensive attention because of its ability to actively repair the damaged part of the coating. Compared with the coating with single physical shielding performance, the coating with self-healing performance can reduce the human and material cost during the maintenance of damaged coating, and has great potential in future development. Based on the healing mechanism and development history of self-healing coatings, this paper divides self-healing coatings into self-healing type, non-self-healing type with the help of external stimulation and intelligent self-healing coating that can respond to specific environment. And expounds its research status, advantages and disadvantages.