TY - GEN
T1 - Electrochemical performance of UHMWPE biocompatible coatings on TI6AL4V alloy in simulated body solutions
T2 - 35th National Congress of the SMEQ, SMEQ 2020/13th Meeting of the Mexican Section of The Electrochemical Society
AU - Anaya-Garza, K.
AU - Domínguez-Crespo, M. A.
AU - Torres-Huerta, A. M.
AU - Ramírez, D. Palma
AU - Rodríguez-Salazar, A. E.
AU - Ramírez-Meneses, E.
AU - Brachetti-Sibaja, B.
N1 - Publisher Copyright:
© 2021 Electrochemical Society Inc.. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Ti6Al4V alloys are widely employed in the production of orthopedic implants due to their adequate mechanical properties, corrosion resistance and biocompatibility. Nevertheless, these alloys present a high friction coefficient and low wear resistance limiting their half-life time. Then, once implanted, the interaction between the metal and the surrounding tissue can promote the corrosion process which in turn can ultimately trigger its rejection. In this work, ultra-high molecular weight polyethylene (UHMWPE) films were coated onto Ti6Al4V alloy substrates using the dip coating method to evaluate the influence of immersion time on the electrochemical performance in Simulated Body Solutions. The coating thickness was ranged from 11 to 20 μm changing the immersion time between 20 and 40 s. Structural characterization shows that an increase in the immersion time reduces the crystallinity of UHMWPE coatings and their porosity from 32 to 0.2 %. The performance of the films as protective barriers against the corrosion process was enhanced with high immersion times, decreasing the corrosion rate up to 0.05 μm y-1 (40 s).
AB - Ti6Al4V alloys are widely employed in the production of orthopedic implants due to their adequate mechanical properties, corrosion resistance and biocompatibility. Nevertheless, these alloys present a high friction coefficient and low wear resistance limiting their half-life time. Then, once implanted, the interaction between the metal and the surrounding tissue can promote the corrosion process which in turn can ultimately trigger its rejection. In this work, ultra-high molecular weight polyethylene (UHMWPE) films were coated onto Ti6Al4V alloy substrates using the dip coating method to evaluate the influence of immersion time on the electrochemical performance in Simulated Body Solutions. The coating thickness was ranged from 11 to 20 μm changing the immersion time between 20 and 40 s. Structural characterization shows that an increase in the immersion time reduces the crystallinity of UHMWPE coatings and their porosity from 32 to 0.2 %. The performance of the films as protective barriers against the corrosion process was enhanced with high immersion times, decreasing the corrosion rate up to 0.05 μm y-1 (40 s).
UR - http://www.scopus.com/inward/record.url?scp=85100964862&partnerID=8YFLogxK
U2 - 10.1149/10101.0325ecst
DO - 10.1149/10101.0325ecst
M3 - Contribución a la conferencia
AN - SCOPUS:85100964862
T3 - ECS Transactions
SP - 325
EP - 334
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.
Y2 - 14 October 2020 through 16 October 2020
ER -