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

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

Advances in Natural Sciences Nanoscience and Nanotechnology ◽

10.1088/2043-6262/5/3/035016 ◽

2014 ◽

Vol 5 (3) ◽

pp. 035016 ◽

Cited By ~ 5

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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8-hydroxyquinoline-modified clay incorporated in an epoxy coating for the corrosion protection of carbon steel

Surfaces and Interfaces ◽

10.1016/j.surfin.2018.10.007 ◽

2019 ◽

Vol 14 ◽

pp. 26-33 ◽

Cited By ~ 18

Author(s):

Trinh Anh Truc ◽

Thai Thu Thuy ◽

Vu Ke Oanh ◽

To Thi Xuan Hang ◽

Anh Son Nguyen ◽

...

Keyword(s):

Carbon Steel ◽

Corrosion Protection ◽

Epoxy Coating ◽

Modified Clay

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Enhanced Anti-Corrosion Protection of Carbon Steel with Silica-Polypyrrole-Dodecyl Sulfate Incorporated into Epoxy Coating

Journal of Electronic Materials ◽

10.1007/s11664-019-07146-1 ◽

2019 ◽

Vol 48 (6) ◽

pp. 3931-3938 ◽

Cited By ~ 4

Author(s):

Thom Nguyen Thi ◽

Thanh Dinh Thi Mai ◽

Nam Pham Thi ◽

Phuong Nguyen Thu ◽

Van Vu Thi Hai ◽

...

Keyword(s):

Carbon Steel ◽

Corrosion Protection ◽

Epoxy Coating ◽

Dodecyl Sulfate

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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.

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