A new strategy for long-term smart corrosion protection of Q235 carbon steel using polyaniline nanofiber covalently linking with modified GO as reinforcement of epoxy coating

CORROSION ◽  
10.5006/3814 ◽  
2021 ◽  
Author(s):  
Fengjuan Xiao ◽  
Cheng Qian ◽  
Meng Wang ◽  
Xuefei Zhang ◽  
yan lu
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Steel Surface ◽  
Covalent Binding ◽  
Synthesis Method ◽  
Epoxy Coating ◽  
Ammonium Bromide ◽  
Modified Graphene Oxide ◽  
Waterborne Epoxy ◽  
Polyaniline Nanofiber

Polyaniline nanofiber (PANI-f) was covalently linked with cetyltrimethyl ammonium bromide (CTAB) modified graphene oxide nanosheets (CTGO) to fabricate a smart composite coating for corrosion protection of carbon steel. In the copolymerization process, CTAB served both as a modifier for the modification of GO and a dispersant for the preparation of polyaniline nanofibers. The prepared PANI-f can avoid the accelerated corrosion of steel by conventional synthesis method using hydrochloric acid as medium. The covalent binding between PANI-f and CTGO improved the compatibility of PANI-f-GO with the waterborne epoxy emulsion, which significantly enhance the hydrophobicity and anti-permeability of the coating. The PANI-f-GO waterborne epoxy coating exhibited excellent smart corrosion protection efficiency by catalyzing the formation of passivation film on steel surface. Molecular adsorption energy on Fe(110) and radial distribution function confirmed the chemical adsorption of the PANI-f-GO composite on the steel surface. The superior smart protective performance can be ascribed to the synergistic effects of PANI-f and CTGO.

Smart epoxy coating modified with isophorone diisocyanate microcapsules and cerium organophosphate for multilevel corrosion protection of carbon steel

2020 ◽  
Vol 147 ◽  
pp. 105864 ◽  
Author(s):  
Mahboobeh Attaei ◽  
Lénia M. Calado ◽  
Yegor Morozov ◽  
Maryna G. Taryba ◽  
R.A. Shakoor ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Epoxy Coating ◽  
Isophorone Diisocyanate

Novel water-based nanosiloxane epoxy coating for corrosion protection of carbon steel

2012 ◽  
Vol 206 (8-9) ◽  
pp. 2057-2063 ◽  
Author(s):  
M.R. Bagherzadeh ◽  
A. Daneshvar ◽  
H. Shariatpanahi
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Epoxy Coating ◽  
Water Based

scholarly journals Evaluation of the anticorrosion of waterborne epoxy coatings containing cerium salt-activated ceria nanoparticles deposited onto carbon steel substrates

2018 ◽  
Vol 56 (3B) ◽  
pp. 96
Author(s):  
Anh Son Nguyen ◽  
Thuy Duong Nguyen ◽  
Thu Thuy Thai
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Salt Spray ◽  
Ceo2 Nanoparticles ◽  
Ceria Nanoparticles ◽  
Epoxy Coatings ◽  
Artificial Defect ◽  
Waterborne Epoxy ◽  
Cerium Salt ◽  
Steel Substrates

The presence work investigates the corrosion protection of waterborne epoxy coatings containing CeO2 nanoparticles activated with cerium salt for the carbon steel substrates. First, the dispersion of activated nanoparticles in the epoxy matrix was observed by field emission scanning electron microscopy (FESEM). The electrochemical impedance spectroscopy (EIS) was carried out to evaluate the role of the activated-CeO2 nanoparticles in the organic coatings immersed in a 0.5 M NaCl solution. Thus, the effect of the cerium ion activated ceria nanoparticles on the coatings presented the artificial defect in the aggressive environment was examined via salt spray test. Complementary studies were performed using the cross-cut and pull-off test to assess the adherence properties of the samples. Results revealed that the presence of activated-CeO2 nanoparticles enhanced corrosion protection properties of waterborne epoxy coating without losing adherence properties.

scholarly journals Effect of zero charge corrosion protection (ZCCP) on the carbon steel surface in 3.5% NaCl solution

2019 ◽  
Vol 701 ◽  
pp. 012038
Author(s):  
Shaiful Rizam Shamsudin ◽  
Zin Wen Sim ◽  
Rajaselan Wardan ◽  
Nadia Nadhira Mohd Jamalullalel ◽  
Azmi Rahmat
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Steel Surface ◽  
Nacl Solution ◽  
Zero Charge ◽  
Carbon Steel Surface

Corrosion protection performance of waterborne epoxy coatings containing self-doped polyaniline nanofiber

2017 ◽  
Vol 407 ◽  
pp. 213-222 ◽  
Author(s):  
Shihui Qiu ◽  
Cheng Chen ◽  
Mingjun Cui ◽  
Wei Li ◽  
Haichao Zhao ◽  
...  
Keyword(s):  
Corrosion Protection ◽  
Epoxy Coatings ◽  
Waterborne Epoxy ◽  
Doped Polyaniline ◽  
Polyaniline Nanofiber

A Comparative Study of Neat Epoxy Coating and NanoZrO2/Epoxy Coating for Corrosion Protection on Carbon Steel

2014 ◽  
Vol 599-601 ◽  
pp. 3-6
Author(s):  
Xia Zhao ◽  
Shuan Liu ◽  
Bao Rong Hou
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Electrochemical Impedance ◽  
Salt Spray ◽  
Epoxy Coating ◽  
Steel Plates ◽  
Neat Epoxy ◽  
Corrosive Media ◽  
Tafel Polarization ◽  
Q235 Carbon Steel

nanoZrO2 was modified by styrene coupling grafting method and then used as an additive to improve the protective performance of epoxy coating. Two kinds of coatings, neat epoxy coating and nanoZrO2/epoxy coating, were prepared and applied on Q235 carbon steel plates. The plates were submitted to salt spray chamber and seawater immersion for 1000 hours to evaluate the corrosion protection performance for these two kinds of coatings. Tafel polarization curves and electrochemical impedance spectroscopy (EIS) were determined to analyze the corrosion behavior of coating/metal system. Scanning electron microscopy (SEM) and photographs were carried out for morphology analysis of two kinds of coatings under different conditions. Results showed a superior stability and efficient corrosion protection by nanoZrO2 /epoxy coating. The modified nanoZrO2 could inhibit the penetration of corrosive media and then improve the corrosion protection of the epoxy coating on carbon steel.

scholarly journals Incorporation of Fe 3 O 4 /CNTs nanocomposite in an epoxy coating for corrosion protection of carbon steel

2014 ◽  
Vol 5 (3) ◽  
pp. 035016 ◽  
Author(s):  
Gia Vu Pham ◽  
Anh Truc Trinh ◽  
Thi Xuan Hang To ◽  
Thuy Duong Nguyen ◽  
Thu Trang Nguyen ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Epoxy Coating
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