Ni-Fe-MoO4                             2- LDHs/epoxy resin varnish: A composite coating on carbon steel for long-time and active corrosion protection

Guangchun Peng; Qianqian Qiao; Kang Huang; Junsheng Wu; Yi Wang; Xiaoqian Fu; Zhan Zhang; Tao Fang; Bowei Zhang; Yizhong Huang; Xiaogang Li

doi:10.1016/j.porgcoat.2019.105514

Ni-Fe-MoO₄ ^2- LDHs/epoxy resin varnish: A composite coating on carbon steel for long-time and active corrosion protection

Guangchun Peng
, Qianqian Qiao
, Kang Huang
, Junsheng Wu^*
, Yi Wang
, Xiaoqian Fu
, Zhan Zhang
, Tao Fang
, Bowei Zhang
, Yizhong Huang
, Xiaogang Li

^*Corresponding author for this work

University of Science and Technology Beijing
Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Ni-Fe layered double hydroxides (LDHs) thin film was in situ synthesized and intercalated with carbonate (Ni-Fe−CO₃ ²⁻ LDHs) on the surface of carbon steels through wet/dry cycle immersion methods. The effect of different treatments on the Ni-Fe LDHs thin film morphology were systemically investigated. Ni-Fe-MoO₄ ²⁻ LDHs/epoxy composite coating was prepared via anion-exchange method using Ni-Fe LDHs loaded with MoO₄ ²⁻ (Ni-Fe-MoO₄ ²⁻ LDHs) as a conversion film. X-ray diffraction (XRD) proved that the D-spacing of Ni-Fe LDHs value increased from 7.4 Å to 8.0 Å. Electrochemical impedance spectroscopy (EIS) results show that the presence of Ni-Fe-MoO₄ ²⁻ LDHs can efficiently improve the corrosion resistance of Q235 substrate. The corrosion resistance of Ni-Fe-MoO₄ ²⁻ LDHs/epoxy composite coating was evaluated by EIS, scanning electrochemical microscopy (SECM) and neutral salt spray tests. The results demonstrate that the presence of Ni-Fe-MoO₄ ²⁻ LDHs thin film significantly improves the corrosion resistance of epoxy topcoat, and the composite coating exhibit a long-time and active protection for carbon steels. In addition, the presence of Ni-Fe LDHs thin film can significantly improve the adhesion of the epoxy coating.

Original language	English
Article number	105514
Journal	Progress in Organic Coatings
Volume	140
DOIs	https://doi.org/10.1016/j.porgcoat.2019.105514
State	Published - Mar 2020
Externally published	Yes

Keywords

Anion-exchange
Carbon steel
Corrosion inhibitor
Corrosion resistance
Ni-Fe layered double hydroxides

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10.1016/j.porgcoat.2019.105514

Cite this

@article{2e6d77a3ca3e411891eacbae93f0c1a3,

title = "Ni-Fe-MoO4 2- LDHs/epoxy resin varnish: A composite coating on carbon steel for long-time and active corrosion protection",

abstract = "Ni-Fe layered double hydroxides (LDHs) thin film was in situ synthesized and intercalated with carbonate (Ni-Fe−CO3 2− LDHs) on the surface of carbon steels through wet/dry cycle immersion methods. The effect of different treatments on the Ni-Fe LDHs thin film morphology were systemically investigated. Ni-Fe-MoO4 2− LDHs/epoxy composite coating was prepared via anion-exchange method using Ni-Fe LDHs loaded with MoO4 2− (Ni-Fe-MoO4 2− LDHs) as a conversion film. X-ray diffraction (XRD) proved that the D-spacing of Ni-Fe LDHs value increased from 7.4 {\AA} to 8.0 {\AA}. Electrochemical impedance spectroscopy (EIS) results show that the presence of Ni-Fe-MoO4 2− LDHs can efficiently improve the corrosion resistance of Q235 substrate. The corrosion resistance of Ni-Fe-MoO4 2− LDHs/epoxy composite coating was evaluated by EIS, scanning electrochemical microscopy (SECM) and neutral salt spray tests. The results demonstrate that the presence of Ni-Fe-MoO4 2− LDHs thin film significantly improves the corrosion resistance of epoxy topcoat, and the composite coating exhibit a long-time and active protection for carbon steels. In addition, the presence of Ni-Fe LDHs thin film can significantly improve the adhesion of the epoxy coating.",

keywords = "Anion-exchange, Carbon steel, Corrosion inhibitor, Corrosion resistance, Ni-Fe layered double hydroxides",

author = "Guangchun Peng and Qianqian Qiao and Kang Huang and Junsheng Wu and Yi Wang and Xiaoqian Fu and Zhan Zhang and Tao Fang and Bowei Zhang and Yizhong Huang and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = mar,

doi = "10.1016/j.porgcoat.2019.105514",

language = "英语",

volume = "140",

journal = "Progress in Organic Coatings",

issn = "0300-9440",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Ni-Fe-MoO4 2- LDHs/epoxy resin varnish

T2 - A composite coating on carbon steel for long-time and active corrosion protection

AU - Peng, Guangchun

AU - Qiao, Qianqian

AU - Huang, Kang

AU - Wu, Junsheng

AU - Wang, Yi

AU - Fu, Xiaoqian

AU - Zhang, Zhan

AU - Fang, Tao

AU - Zhang, Bowei

AU - Huang, Yizhong

AU - Li, Xiaogang

PY - 2020/3

Y1 - 2020/3

N2 - Ni-Fe layered double hydroxides (LDHs) thin film was in situ synthesized and intercalated with carbonate (Ni-Fe−CO3 2− LDHs) on the surface of carbon steels through wet/dry cycle immersion methods. The effect of different treatments on the Ni-Fe LDHs thin film morphology were systemically investigated. Ni-Fe-MoO4 2− LDHs/epoxy composite coating was prepared via anion-exchange method using Ni-Fe LDHs loaded with MoO4 2− (Ni-Fe-MoO4 2− LDHs) as a conversion film. X-ray diffraction (XRD) proved that the D-spacing of Ni-Fe LDHs value increased from 7.4 Å to 8.0 Å. Electrochemical impedance spectroscopy (EIS) results show that the presence of Ni-Fe-MoO4 2− LDHs can efficiently improve the corrosion resistance of Q235 substrate. The corrosion resistance of Ni-Fe-MoO4 2− LDHs/epoxy composite coating was evaluated by EIS, scanning electrochemical microscopy (SECM) and neutral salt spray tests. The results demonstrate that the presence of Ni-Fe-MoO4 2− LDHs thin film significantly improves the corrosion resistance of epoxy topcoat, and the composite coating exhibit a long-time and active protection for carbon steels. In addition, the presence of Ni-Fe LDHs thin film can significantly improve the adhesion of the epoxy coating.

AB - Ni-Fe layered double hydroxides (LDHs) thin film was in situ synthesized and intercalated with carbonate (Ni-Fe−CO3 2− LDHs) on the surface of carbon steels through wet/dry cycle immersion methods. The effect of different treatments on the Ni-Fe LDHs thin film morphology were systemically investigated. Ni-Fe-MoO4 2− LDHs/epoxy composite coating was prepared via anion-exchange method using Ni-Fe LDHs loaded with MoO4 2− (Ni-Fe-MoO4 2− LDHs) as a conversion film. X-ray diffraction (XRD) proved that the D-spacing of Ni-Fe LDHs value increased from 7.4 Å to 8.0 Å. Electrochemical impedance spectroscopy (EIS) results show that the presence of Ni-Fe-MoO4 2− LDHs can efficiently improve the corrosion resistance of Q235 substrate. The corrosion resistance of Ni-Fe-MoO4 2− LDHs/epoxy composite coating was evaluated by EIS, scanning electrochemical microscopy (SECM) and neutral salt spray tests. The results demonstrate that the presence of Ni-Fe-MoO4 2− LDHs thin film significantly improves the corrosion resistance of epoxy topcoat, and the composite coating exhibit a long-time and active protection for carbon steels. In addition, the presence of Ni-Fe LDHs thin film can significantly improve the adhesion of the epoxy coating.

KW - Anion-exchange

KW - Carbon steel

KW - Corrosion inhibitor

KW - Corrosion resistance

KW - Ni-Fe layered double hydroxides

UR - https://www.scopus.com/pages/publications/85078731135

U2 - 10.1016/j.porgcoat.2019.105514

DO - 10.1016/j.porgcoat.2019.105514

M3 - 文章

AN - SCOPUS:85078731135

SN - 0300-9440

VL - 140

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

M1 - 105514

ER -

Ni-Fe-MoO₄ ^2- LDHs/epoxy resin varnish: A composite coating on carbon steel for long-time and active corrosion protection

Abstract

Keywords

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