Evaluation of Polymeric Coatings in CO<sub>2</sub> Containing Environment-Reference-Cited by-同舟云学术

Evaluation of Polymeric Coatings in CO₂ Containing Environment

Published:2019-07 Issue: Volume:965 Page:133-141
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Demoner Rayane Z.C.¹,Castro Alexandre R.P.²,Barros Adriana L.¹,Quintela J.P.³,de Oliveira Jefferson R.³,Bott I.S.¹

Affiliation:

1. Pontifical Catholic University of Rio de Janeiro

2. SRGE/ERGE/EETC/EDET

3. CENPES, PDISO

Abstract

Two types of polymeric coating were applied on an AISI 1020 steel, where one of them was reinforced by carbon nanotubes, with the objective of protection against corrosion in a medium containing saline solution, NaCl 3% wt satured with CO2, at 75 bar and tested at 50oC and 75oC for 360 hours. Electrochemical techniques, such as Linear Polarization Resistance, (LPR), Electrochemical Impedance Spectroscopy (EIS), Tafel curves and weight loss method, were used for coating evaluation performance. Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) were used to determine both the morphology and chemical composition of the layer formed on the analyzed surfaces. The coating adhesion to metallic surface was evaluated using pull-off test according to ASTM D4541-09. For the studied conditions, the results obtained showed that there was no adequate coating protection, occurring failures and indicating that both coatings may not be used in the tested conditions.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.965.133.pdf

Reference6 articles.

1. G. Mittal, V. Dhand, K. Yop Rhee, Soo-Jin Park, Wi Ro Lee, A Review on Carbon Nanotubes and Graphene as Fillers in Reinforced Polymer Nanocomposites, Journal of Industrial and Engineering Chemistry 21 (2015) 11–25.

2. M. H. Herbst, M. I. F. Macêdo, A. M. Rocco, Tecnologia dos Nanotubos de Carbono: Tendências e Perspectivas de Uma Área Multidisciplinar, Química Nova,27, 6, (2004) 986-992.( In Portuguese).

3. S. Wang, Functionalization of Carbon Nanotubes: Characterization, Modeling and Composite Applications, PhD Thesis, Department of Industrial and Manufacturing Engineering, College of Engineering, The Florida State University, (2006).

4. J. P. Quintela, Aço Revestido Submetido à Proteção Catódica: Análise da Seleção do Revestimento e da Monitoração do Sistema, Dissertação de Mestrado, UFRJ, Rio de Janeiro, 1994 (in Portuguese).

5. L. M. Callow, J. D. Scantlebury, Electrochemical Impedance in Coated Metal Electrodes. Part 2 - Measurements at Constant Potential, Journal of the Oil & Colour Chemists Association, 64, (1981) 119-123.