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| DOI | 10.1016/J.MATCHEMPHYS.2024.130056 | ||||
| Año | 2025 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
There is significant concern regarding the biocides commonly used in commercial antifouling protection systems because of their high concentrations in coastal areas and the potential harm they can cause to marine organisms. Thus, much research has been dedicated to replacing these biocides with environment-friendly alternatives. Particularly, the use of natural products that inhibit the settlement of fouling organisms is the key to antifouling coating technology. The purpose of this study was to develop antifouling paints by using eco-friendly compounds and implement a multifunctional coating factor. Natural-origin biocidal agents, such as capsaicin, and a copperion release system supported on synthetic zeolite ZSM-5 were used. The formulations resulted in viscosities and particle sizes similar to those of commercial antifouling paints. The capsaicin coatings exhibited less fracture damage and more resistance to deformation in the flexibility and cupping tests. In the adhesion tests, all formulations exceeded 3 MPa, thereby enhancing the adhesion values of conventional antifouling agents. However, the capsaicin coatings exhibited less abrasion resistance than those containing zeolite. Corrosion resistance tests using electrochemical impedance spectroscopy indicated good anti-corrosive properties, particularly in the coatings with 8 % and 10 % copper. All formulations proved to be bactericidal within 6 h, and some completely eliminated the cell density by 3 h, highlighting the effectiveness of the biocide against the marine strain Pseudoalteromonas sp. UCO92.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | MONTOYA-RENDON, LUIS FELIPE | Hombre |
Universidad de Concepción - Chile
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| 2 | Munoz-Rivera, I. | - |
Universidad de Concepción - Chile
|
| 3 | JARAMILLO-MUNOZ, ANDRES FELIPE | Hombre |
Universidad de La Frontera - Chile
UNIV CORDOBA - Colombia Universidad de Córdoba, Monteria - Colombia |
| 4 | Abreu, N. J. | - |
Universidad de La Frontera - Chile
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| 5 | Sanchez-Sanhueza, Gabriela | Mujer |
Universidad de Concepción - Chile
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| 6 | Gonzalez-Rocha, G. | - |
Universidad de Concepción - Chile
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| 7 | FERNANDEZ-ELGUETA, KATHERINA FABIOLA | Mujer |
Universidad de Concepción - Chile
|
| 8 | MELENDREZ-CASTRO, MANUEL FRANCISCO | Hombre |
Universidad San Sebastián - Chile
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| Fuente |
|---|
| FONDEQUIP |
| FONDECYT Iniciación |
| Ministry of Science |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Agencia Nacional de Investigación y Desarrollo |
| Agenția Națională pentru Cercetare și Dezvoltare |
| FONDECYT REGULAR from the National Agency for Research and Development (ANID) |
| Agradecimiento |
|---|
| This research was funded by FONDECYT INICIACION Project 11190358 and FONDECYT REGULAR project 1231376 from the National Agency for Research and Development (ANID), under the Ministry of Science, Government of Chile. |
| AFJ extends thanks to ANID for the support received through the FONDECYT INICIACION Project 11190358 and FONDECYT REGULAR project 1231376. MFM acknowledges ANID for their support through the following projects: FONDEQUIP Project N\u00B0EQM150139, EQM190002, PIA/APOYO CCTE AFB170007. MFM also expresses gratitude to Valentina Lamilla and Juliana Mel\u00E9ndrez for their enormous support. |
| AFJ extends thanks to ANID for the support received through the FONDECYT INICIACION Project 11190358 and FONDECYT REGULAR project 1231376. MFM acknowledges ANID for their support through the following projects: FONDEQUIP Project N\u00B0EQM150139, EQM190002, PIA/APOYO CCTE AFB170007. MFM also expresses gratitude to Valentina Lamilla and Juliana Mel\u00E9ndrez for their enormous support. |