Smart Anticorrosion Coating: Hollow Silica Nanocapsules with Inorganic Salt

Chinese researchers synthesized 1H-benzotriazole (BTA) loaded hollow silica nanocapsules with magnesium hydroxide precipitate in the shells (HSNs-M/BTA) through inverse microemulsion (W/O) polymerization.

It was shown that by the changing of pH in the corrosion solution, the release of BTA can be triggered. Water contact angle results showed that the anticorrosive SiOx/ZrOx coatings embedded with hydrophobically modified HSNs-M have a contact angle value of 140°.

The corrosion performance of this developed system was enhanced and this method  is promising as an intelligent element in protective coatings in the future.

Explore further

Journal of Coatings Technology and Research

January 2017, Volume 14, Issue 1, pp 85–94


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