Multifunctional epoxy coatings combining a mixture of traps and inhibitor loaded nanocontainers for corrosion protection of AA2024-T3 |
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| Affiliation: | 1. School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., GR-157 80 Zographos, Athens, Greece;2. Institute of Nanoscience and Nanotechnology, NCSR “DEMOKRITOS”, 15310 Agia Paraskevi, Greece;3. ICEMS, Instituto Superior Tecnico, University of Lisbon, ICEMS, DEQ, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;1. College of Water Conservancy and Civil Engineering, South China Agricultural University, Guangzhou 510642, PR China;2. Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong SAR, PR China;1. Chemical Engineering Department, Laxminarayan Institute of Technology, Nagpur 440033, MS, India;2. Chemical Engineering Department, Vishwakarma Institute of Technology, Pune 411 037, MS, India;3. Department of Chemical Engineering, National Institute of Technology, Warangal 506004, AP, India;1. ICEMS, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;2. IBB, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;3. Departamento de Química Farmacêutica e Terapêutica, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal;4. REQUIMTE/CQFB, FCT/Universidade Nova de Lisboa, Portugal;1. Programa Interdisciplinar de Pós Graduação em Engenharia e Ciência dos Materiais, Universidade Federal do Paraná, PO Box 19011, CEP: 81531-980, Curitiba, Paraná, Brazil;2. Departamento de Estruturas Civis, Institutos Lactec, PO Box 19067, CEP: 81531-980, Curitiba, Paraná, Brazil;1. Department of Nanomaterials and Nanocoatings, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran;2. Department of Surface Coatings and Corrosion, Institute for Color Science and Technology (ICST), PO 16765-654, Tehran, Iran |
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| Abstract: | This work aims at investigating the corrosion protection effectiveness of multifunctional epoxy coatings modified with pigments such as ceramic nanocontainers loaded with corrosion inhibitor, chloride and water traps, applied on AA2024-T3. Characterizations on the morphology, composition and structure of the coatings were conducted. The corrosion resistance was studied by electrochemical impedance spectroscopy, localized electrochemical impedance spectroscopy and scanning vibrating electrode technique. The mechanical behaviour of the coatings was examined through nanoindentation and nanoscratching tests. Electrochemical and nanomechanical testing results, evidenced the improvement of the corrosion protective properties and mechanical behaviour of the coatings in the presence of the various pigments. |
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| Keywords: | A Aluminium A Alloy A Organic coatings B EIS B SEM |
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