Record Details

An Epoxy Based Lignosulphonate Doped Polyaniline-Poly(Acrylamide Co-Acrylic Acid) Coating for Corrosion Protection of Aluminium Alloy 2024-T3

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title An Epoxy Based Lignosulphonate Doped Polyaniline-Poly(Acrylamide Co-Acrylic Acid) Coating for Corrosion Protection of Aluminium Alloy 2024-T3
 
Creator GUPTA, G
BIRBILIS, N
KHANNA, AS
 
Subject Corrosion
Conducting polymer
Inhibition
Coating
Electrochemical Impedance Spectroscopy
ELECTROACTIVE CONDUCTING POLYMERS
CARBON-STEEL
MILD-STEEL
PART 2
POLYANILINE
ANTICORROSION
SPECTROSCOPY
AA2024-T3
MECHANISM
CHROMATE
 
Description Corrosion protection arising from epoxy coatings incorporating lignosulfonate-doped polyaniline-poly(acrylamide co-acrylic acid) (Pani-PAmAc) upon AA2024-T3 was studied in 3.5% NaCl. Synthesised Pani-PAmAc particles were investigated using TEM, FTIR, TGA and conductivity, whilst coatings were also physically examined using SEM. The corrosion performance of coatings was studied using a combination of potentiodynamic polarisation, EIS, and salt spray test. Results reveal that the epoxy based Pani-PAmAc coating was smooth and continuous. Potentiodynamic polarisation, EIS and salt spray testing revealed significant corrosion protection even after 50 days exposure to a 3.5% NaCl environment. This was attributed to the synergistic effect of polyaniline with poly(acrylamide co-acrylic acid) which prevented dopant loss and maintained electronic conduction even after long term exposure to a corrosive environment.
 
Publisher ESG
 
Date 2014-10-16T13:14:54Z
2014-10-16T13:14:54Z
2013
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 8(3)3132-3149
http://dspace.library.iitb.ac.in/jspui/handle/100/15639
 
Language en