TY - GEN
T1 - Studies of Corrosion Resistant Properties of PU Coatings Reinforced with La-Pr-O Nanostructures
AU - Ortíz, E. Rocha
AU - Brachetti-Sibaja, S. B.
AU - Palma-Ramírez, D.
AU - Huert, A. M.Torres
AU - Dorantes-Rosales, H. J.
AU - Rodríguez-Salazar, A. E.
AU - Domínguez-Crespoc, M. A.
N1 - Publisher Copyright:
© 2021 Electrochemical Society Inc.. All rights reserved.
PY - 2021
Y1 - 2021
N2 - This work examines the main parameters to obtain solid solutions of La-Pr-O nanostructures and their incorporation into a poly(urethane) (PU) based on hexamethylene diisocyanate (HDI) (PU-HDI). The effect of obtaining La-Pr-O at different intervals of time was evaluated. Structural results indicated that the alloys, as solid solutions, can be obtained during the first 60 min. These nanostructures were found to have morphologies of agglomerates growing from random and irregular shapes of particles. Once stablished the optimal conditions, 1, 3 and 5 wt.% of La-Pr-O nanostructures were incorporated into PU-HDI through magnetic stirring and deposited onto AISI 1060 carbon steel by spray technique. XRD indicated that the nanostructures were successfully dispersed into PU-HDI with a final reduced crystal size related to the adequate dispersion. The electrochemical findings, such as the displacement in the Ecorr (towards to positive direction), an important reduction of the jcorr and polarization resistance (Rp), validate that La-Pr-O nanostructures offer an effective strategy to improve barrier properties of PU systems.
AB - This work examines the main parameters to obtain solid solutions of La-Pr-O nanostructures and their incorporation into a poly(urethane) (PU) based on hexamethylene diisocyanate (HDI) (PU-HDI). The effect of obtaining La-Pr-O at different intervals of time was evaluated. Structural results indicated that the alloys, as solid solutions, can be obtained during the first 60 min. These nanostructures were found to have morphologies of agglomerates growing from random and irregular shapes of particles. Once stablished the optimal conditions, 1, 3 and 5 wt.% of La-Pr-O nanostructures were incorporated into PU-HDI through magnetic stirring and deposited onto AISI 1060 carbon steel by spray technique. XRD indicated that the nanostructures were successfully dispersed into PU-HDI with a final reduced crystal size related to the adequate dispersion. The electrochemical findings, such as the displacement in the Ecorr (towards to positive direction), an important reduction of the jcorr and polarization resistance (Rp), validate that La-Pr-O nanostructures offer an effective strategy to improve barrier properties of PU systems.
UR - http://www.scopus.com/inward/record.url?scp=85101053101&partnerID=8YFLogxK
U2 - 10.1149/10101.0313ecst
DO - 10.1149/10101.0313ecst
M3 - Contribución a la conferencia
AN - SCOPUS:85101053101
T3 - ECS Transactions
SP - 313
EP - 323
BT - XXXV National Congress of the SMEQ/13th Meeting of the Mexican Section of The Electrochemical Society
A2 - Cabral Miramontes, J. A.
A2 - Frontana-Uribe, B. A.
A2 - Nava Montes de Oca, J. L.
A2 - Saucedo Acuna, R. A.
PB - IOP Publishing Ltd.
T2 - 35th National Congress of the SMEQ, SMEQ 2020/13th Meeting of the Mexican Section of The Electrochemical Society
Y2 - 14 October 2020 through 16 October 2020
ER -