Journal
PROGRESS IN ORGANIC COATINGS
Volume 95, Issue -, Pages 127-135Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2016.03.005
Keywords
Composite corrosion coatings; Polythiophene derivative; Electrochemical noise analysis; Fast Fourier transform
Funding
- CONACYT [CB2007-81383-Q]
- CONACYT
- [PROMEP/103.5/07/2674]
Ask authors/readers for more resources
This work presents the evaluation of two corrosion protection coatings applied to mild steel which was exposed to a 3% chloride solution at different immersion times. The coatings were processed composites (P1 polymer-ashes and P1 polymer-MCM-41) using iron (III) nitrate as a corrosion inhibitor in their matrix. P1 polymer is a polythiophene derivative of 3-HT and (S)-(-)-1-(4-nitrophenyl)pyrrolidin-2-yl)methyl-2-(thiophen-3-yl)acetate. Ashes and MCM-41 (a type of mesoporous silica material) were used as containers of the iron (III) nitrate inhibitor. The coatings were characterized using nuclear magnetic resonance (NMR), Fourier Transform Infrared (FT-IR) and scanning electron microscopy (SEM). Polarization curves were used to determine the optimal concentration of inhibitor, and electrochemical noise measurements (ENM) to evaluate the corrosion protection performance. The electrochemical noise analysis (ENA) included: statistical (standard deviation) and Fast Fourier Transform (FFT) analysis to obtain the impedance spectrum and to evaluate the corrosion coating system's behavior. Good performance was obtained with the two anti-corrosion coatings that were applied and their inhibitor containers. (C) 2016 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available