Dodecylamine-loaded halloysite nanocontainers for active anticorrosion coatings
Currently the most promising approach in the corrosion protection by smart coatings is the use of nanoreservoirs loaded with corrosion inhibitors. Nanocontainers are filled with anti-corrosive agents and embedded into a primer coating. Future prospective containers are halloysite nanotubes due to th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2015-11-01
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| Series: | Frontiers in Materials |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fmats.2015.00069/full |
| _version_ | 1818547118619492352 |
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| author | Jesus Marino Falcón Tiago eSawczen Idalina Vieira Aoki |
| author_facet | Jesus Marino Falcón Tiago eSawczen Idalina Vieira Aoki |
| author_sort | Jesus Marino Falcón |
| collection | DOAJ |
| description | Currently the most promising approach in the corrosion protection by smart coatings is the use of nanoreservoirs loaded with corrosion inhibitors. Nanocontainers are filled with anti-corrosive agents and embedded into a primer coating. Future prospective containers are halloysite nanotubes due to their low price, availability, durability, with high mechanical strength and biocompatibility. The aim of this work is to study the use of halloysite nanotubes as nanocontainers for encapsulated dodecylamine for active corrosion protection of carbon steel. Halloysite clay was characterized by XRD and TGA- thermogravimetric analysis techniques. Halloysite nanotubes were loaded with dodecylamine and embedded into an alkyd primer with a weight ratio of 10 wt.% . The anticorrosive performance of the alkyd primer doped with 10 wt.% of entrapped-dodecylamine halloysite was tested on coated carbon steel by direct exposure of the coated samples with a provoked defect into 0.01 mol/L NaCl corrosive media using electrochemical impedance spectroscopy (EIS) and scanning vibrating electrode technique (SVET). EIS and SVET measurements showed the self-healing properties of the doped alkyd coating. Coated samples were also evaluated in a salt spray chamber and the self-healing effect was unequivocally noticed. |
| first_indexed | 2024-12-12T08:02:25Z |
| format | Article |
| id | doaj.art-763fb549266f400087b6a41155685965 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-12-12T08:02:25Z |
| publishDate | 2015-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-763fb549266f400087b6a411556859652022-12-22T00:32:05ZengFrontiers Media S.A.Frontiers in Materials2296-80162015-11-01210.3389/fmats.2015.00069162267Dodecylamine-loaded halloysite nanocontainers for active anticorrosion coatingsJesus Marino Falcón0Tiago eSawczen1Idalina Vieira Aoki2University of São PauloNanocorr - Aditivos Inteligentes e Soluções Contra Corrosão. LtdaUniversity of São PauloCurrently the most promising approach in the corrosion protection by smart coatings is the use of nanoreservoirs loaded with corrosion inhibitors. Nanocontainers are filled with anti-corrosive agents and embedded into a primer coating. Future prospective containers are halloysite nanotubes due to their low price, availability, durability, with high mechanical strength and biocompatibility. The aim of this work is to study the use of halloysite nanotubes as nanocontainers for encapsulated dodecylamine for active corrosion protection of carbon steel. Halloysite clay was characterized by XRD and TGA- thermogravimetric analysis techniques. Halloysite nanotubes were loaded with dodecylamine and embedded into an alkyd primer with a weight ratio of 10 wt.% . The anticorrosive performance of the alkyd primer doped with 10 wt.% of entrapped-dodecylamine halloysite was tested on coated carbon steel by direct exposure of the coated samples with a provoked defect into 0.01 mol/L NaCl corrosive media using electrochemical impedance spectroscopy (EIS) and scanning vibrating electrode technique (SVET). EIS and SVET measurements showed the self-healing properties of the doped alkyd coating. Coated samples were also evaluated in a salt spray chamber and the self-healing effect was unequivocally noticed.http://journal.frontiersin.org/Journal/10.3389/fmats.2015.00069/fullself-healingCorrosion InhibitorHalloysiteDodecylaminenanocontainerssmart coatings. |
| spellingShingle | Jesus Marino Falcón Tiago eSawczen Idalina Vieira Aoki Dodecylamine-loaded halloysite nanocontainers for active anticorrosion coatings Frontiers in Materials self-healing Corrosion Inhibitor Halloysite Dodecylamine nanocontainers smart coatings. |
| title | Dodecylamine-loaded halloysite nanocontainers for active anticorrosion coatings |
| title_full | Dodecylamine-loaded halloysite nanocontainers for active anticorrosion coatings |
| title_fullStr | Dodecylamine-loaded halloysite nanocontainers for active anticorrosion coatings |
| title_full_unstemmed | Dodecylamine-loaded halloysite nanocontainers for active anticorrosion coatings |
| title_short | Dodecylamine-loaded halloysite nanocontainers for active anticorrosion coatings |
| title_sort | dodecylamine loaded halloysite nanocontainers for active anticorrosion coatings |
| topic | self-healing Corrosion Inhibitor Halloysite Dodecylamine nanocontainers smart coatings. |
| url | http://journal.frontiersin.org/Journal/10.3389/fmats.2015.00069/full |
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