Surface Properties of Coatings Based on Iron Amino-Functionalized Oxides Deposited on DH 36 Steel Plates for Shipbuilding
The development of eco-friendly paint formulations is part of the transition process to more sustainable materials, which involves many industries such as offshore and shipbuilding, where the deterioration of steel in seawater is a key factor. This article aims to produce innovative coatings and tes...
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MDPI AG
2025-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/3/150 |
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| author | Maria Luisa Testa Carla Calabrese Valeria La Parola Cristina Scolaro Annamaria Visco Simone Cappello Leonarda Francesca Liotta |
| author_facet | Maria Luisa Testa Carla Calabrese Valeria La Parola Cristina Scolaro Annamaria Visco Simone Cappello Leonarda Francesca Liotta |
| author_sort | Maria Luisa Testa |
| collection | DOAJ |
| description | The development of eco-friendly paint formulations is part of the transition process to more sustainable materials, which involves many industries such as offshore and shipbuilding, where the deterioration of steel in seawater is a key factor. This article aims to produce innovative coatings and test their protective action on DH 36 steel plates. SiO<sub>2</sub> and TiO<sub>2</sub> were modified with amino groups and iron sites to be used as filler for the design of ecological paint formulations The antimicrobial features of both NH<sub>2</sub> groups and iron ionic species were combined with the chemical and mechanical stability of silica and titania, with silica-based powders showing increased efficacy. The surface properties of the resulting coatings were examined by determination of thickness, water wettability, roughness, and cross-cut adhesion tests (before and after a degradation test in seawater according to ASTM D870-97 standards). Preliminary tests of the microbiological activity of the iron amino functionalized materials were carried out to monitor, as proof of concept, the growth of some bacterial strains through measurements of optical density. The findings indicate that these coatings not only provide effective corrosion protection but are promising for enhancing the durability and environmental performance of steel surfaces exposed to marine environments. |
| format | Article |
| id | doaj-art-5e5a4716fca84658a615829be8fa3dd8 |
| institution | OA Journals |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-5e5a4716fca84658a615829be8fa3dd82025-08-20T02:12:31ZengMDPI AGNanomaterials2079-49912025-01-0115315010.3390/nano15030150Surface Properties of Coatings Based on Iron Amino-Functionalized Oxides Deposited on DH 36 Steel Plates for ShipbuildingMaria Luisa Testa0Carla Calabrese1Valeria La Parola2Cristina Scolaro3Annamaria Visco4Simone Cappello5Leonarda Francesca Liotta6Institute for the Study of Nanostructured Materials (ISMN)—CNR, via Ugo La Malfa, 153, 90146 Palermo, ItalyInstitute for the Study of Nanostructured Materials (ISMN)—CNR, via Ugo La Malfa, 153, 90146 Palermo, ItalyInstitute for the Study of Nanostructured Materials (ISMN)—CNR, via Ugo La Malfa, 153, 90146 Palermo, ItalyDepartment of Engineering, University of Messina, C. da Di Dio, 98166 Messina, ItalyDepartment of Engineering, University of Messina, C. da Di Dio, 98166 Messina, ItalyIRBIM-CNR, Spianata San Rainieri, 86, 98122 Messina, ItalyInstitute for the Study of Nanostructured Materials (ISMN)—CNR, via Ugo La Malfa, 153, 90146 Palermo, ItalyThe development of eco-friendly paint formulations is part of the transition process to more sustainable materials, which involves many industries such as offshore and shipbuilding, where the deterioration of steel in seawater is a key factor. This article aims to produce innovative coatings and test their protective action on DH 36 steel plates. SiO<sub>2</sub> and TiO<sub>2</sub> were modified with amino groups and iron sites to be used as filler for the design of ecological paint formulations The antimicrobial features of both NH<sub>2</sub> groups and iron ionic species were combined with the chemical and mechanical stability of silica and titania, with silica-based powders showing increased efficacy. The surface properties of the resulting coatings were examined by determination of thickness, water wettability, roughness, and cross-cut adhesion tests (before and after a degradation test in seawater according to ASTM D870-97 standards). Preliminary tests of the microbiological activity of the iron amino functionalized materials were carried out to monitor, as proof of concept, the growth of some bacterial strains through measurements of optical density. The findings indicate that these coatings not only provide effective corrosion protection but are promising for enhancing the durability and environmental performance of steel surfaces exposed to marine environments.https://www.mdpi.com/2079-4991/15/3/150iron amino-functionalized oxidesteel for shipbuildingcoatingadhesion testroughness |
| spellingShingle | Maria Luisa Testa Carla Calabrese Valeria La Parola Cristina Scolaro Annamaria Visco Simone Cappello Leonarda Francesca Liotta Surface Properties of Coatings Based on Iron Amino-Functionalized Oxides Deposited on DH 36 Steel Plates for Shipbuilding Nanomaterials iron amino-functionalized oxide steel for shipbuilding coating adhesion test roughness |
| title | Surface Properties of Coatings Based on Iron Amino-Functionalized Oxides Deposited on DH 36 Steel Plates for Shipbuilding |
| title_full | Surface Properties of Coatings Based on Iron Amino-Functionalized Oxides Deposited on DH 36 Steel Plates for Shipbuilding |
| title_fullStr | Surface Properties of Coatings Based on Iron Amino-Functionalized Oxides Deposited on DH 36 Steel Plates for Shipbuilding |
| title_full_unstemmed | Surface Properties of Coatings Based on Iron Amino-Functionalized Oxides Deposited on DH 36 Steel Plates for Shipbuilding |
| title_short | Surface Properties of Coatings Based on Iron Amino-Functionalized Oxides Deposited on DH 36 Steel Plates for Shipbuilding |
| title_sort | surface properties of coatings based on iron amino functionalized oxides deposited on dh 36 steel plates for shipbuilding |
| topic | iron amino-functionalized oxide steel for shipbuilding coating adhesion test roughness |
| url | https://www.mdpi.com/2079-4991/15/3/150 |
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