TY - JOUR
T1 - Evaluation of Corrosion Protection of Self-Healing Coatings Containing Tung and Copaiba Oil Microcapsules
AU - Paolini, Nicolas Augusto
AU - Cordeiro Neto, Alexandre Goncąlves
AU - Pellanda, Alana Cristine
AU - Carvalho Jorge, Agne Roani De
AU - Barros Soares, Bryan De
AU - Floriano, Joaõ Batista
AU - Berton, Marcos Antonio Coelho
AU - Vijayan P, Poornima
AU - Thomas, Sabu
N1 - Publisher Copyright:
© 2021 Nicolas Augusto Paolini et al.
PY - 2021
Y1 - 2021
N2 - The objective of the current research is to evaluate and compare the corrosion protection efficiency of the microcapsules containing tung oil and copaiba oil using stereoscopic images, electrochemical tests, open circuit potential (OCP), and polarization curves (Tafel analysis). Carbon steel plates were painted with three different coating systems: (a) a coating system with an automotive primer which served as the control, (b) a coating system with microcapsules containing 3% tung oil, and (c) a coating system with microcapsules containing 3% copaiba oil. A crosscut was performed using a scalpel on the coating surfaces to promote the release of the oils, and after drying, electrochemical cells were assembled using electrolyte 3% NaCl. From OCP analyses, it was verified that the coating system containing tung oil loaded microcapsules obtained more positive final values than the control system and the coating system containing copaiba oil loaded microcapsules. The stereoscope images corroborate the OCP results, and the polarization curve analyses also indicated that the microcapsules containing tung oil offer better corrosion protection than the other systems studied.
AB - The objective of the current research is to evaluate and compare the corrosion protection efficiency of the microcapsules containing tung oil and copaiba oil using stereoscopic images, electrochemical tests, open circuit potential (OCP), and polarization curves (Tafel analysis). Carbon steel plates were painted with three different coating systems: (a) a coating system with an automotive primer which served as the control, (b) a coating system with microcapsules containing 3% tung oil, and (c) a coating system with microcapsules containing 3% copaiba oil. A crosscut was performed using a scalpel on the coating surfaces to promote the release of the oils, and after drying, electrochemical cells were assembled using electrolyte 3% NaCl. From OCP analyses, it was verified that the coating system containing tung oil loaded microcapsules obtained more positive final values than the control system and the coating system containing copaiba oil loaded microcapsules. The stereoscope images corroborate the OCP results, and the polarization curve analyses also indicated that the microcapsules containing tung oil offer better corrosion protection than the other systems studied.
UR - https://www.scopus.com/pages/publications/85102731354
U2 - 10.1155/2021/6650499
DO - 10.1155/2021/6650499
M3 - Article
AN - SCOPUS:85102731354
SN - 1687-9422
VL - 2021
JO - International Journal of Polymer Science
JF - International Journal of Polymer Science
M1 - 6650499
ER -