Effect of inhibitor-loaded halloysites and mesoporous silica nanocontainers on 
corrosion protection of powder coatings

Shchukina, Elena; Shchukin, Dmitry; Grigoriev, Dmitry

doi:10.1016/j.porgcoat.2016.04.031

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Effect of inhibitor-loaded halloysites and mesoporous silica nanocontainers on corrosion protection of powder coatings

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Grigoriev, Dmitry
Grenzflächen, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Shchukina, E., Shchukin, D., & Grigoriev, D. (2017). Effect of inhibitor-loaded halloysites and mesoporous silica nanocontainers on corrosion protection of powder coatings. Progress in Organic Coatings, 102, 60-65. doi:10.1016/j.porgcoat.2016.04.031.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-8B6E-7

Abstract

We carried out the comparative study of the effect of inhibitor-loaded nanocontainers on the corrosion protection performance of polyester powder coatings by neutral salt-spray test (5 NaCl, 35 °C, different time). Halloysites and mesoporous silica particles loaded with corrosion inhibitor 8-hydroxyquinoline were homogeneously distributed in powder coating effectively reducing corrosion of the metal substrate over 1000 h of salt-spray test. Addition of only 2 wt. of inhibitor encapsulated either in halloysites or in mesoporous silica particles to the powder coating is sufficient to decrease the delamination effect by gt;4 times and to suppress the formation of the blisters on the low carbon steel substrates.