Self-healing hybrid nanocomposite coatings with encapsulated organic corrosion inhibitors

Self-healing hybrid nanocomposite coatings with encapsulated organic corrosion inhibitors

Type	Journal Article
Author	Azam Rahimi
Author	Sahar Amiri
URL	http://link.springer.com/article/10.1007/s10965-014-0624-z
Volume	22
Issue	1
Pages	1-8
Publication	Journal of Polymer Research
Date	2014/12/09
Abstract	To improve the protective properties of sol–gel-derived hybrid coatings against corrosion, encapsulated corrosion inhibitors (2-mercaptobenzothiazole (MBT) and 2-mercaptobenzimidazole (MBI)) were incorporated into hybrid coatings in the presence of α-cyclodextrin (α-CD). The encapsulation of corrosion inhibitors occurs through the formation of an inclusion complex between α-CD and corrosion inhibitors, which become active in corrosive electrolytes and can slowly diffuse out of the host material to ensure continuous delivery of the inhibitors to corrosion sites and long-term corrosion protection.