BTA loaded in various CeO2 nanocontainers in epoxy coating for long-term anticorrosion of low carbon steel
To figure out the behavior of benzotriazole (BTA) loaded in CeO2 nanocontainers during long term anticorrosion, three kinds of CeO2 spheres were used: hollow spheres (HSs), double-shell hollow spheres (DHSs), and solid-mesoporous spheres (SSs). The BTA loading and releasing situations were checked,...
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Veröffentlicht in: | Progress in organic coatings 2022-11, Vol.172, p.107156, Article 107156 |
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Sprache: | eng |
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Zusammenfassung: | To figure out the behavior of benzotriazole (BTA) loaded in CeO2 nanocontainers during long term anticorrosion, three kinds of CeO2 spheres were used: hollow spheres (HSs), double-shell hollow spheres (DHSs), and solid-mesoporous spheres (SSs). The BTA loading and releasing situations were checked, and CeO2-HSs exhibited the largest BTA loading amount of 12.5 wt%, forming by both chemical and physical adsorption. The highest BTA loading in CeO2-HSs may be attributed to its hollow structure and more Ce3+ sites (39 %) for BTA anchoring. Thus, CeO2-HSs@BTA exhibited an excellent long-term anticorrosion in epoxy coating for low carbon steel protection, showing no rusting after 40 days of salt spray experiment. |
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ISSN: | 0300-9440 1873-331X |
DOI: | 10.1016/j.porgcoat.2022.107156 |