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 a 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 enhanced the hydrophobicity and antipermeability of the coating. The PANI-f-GO waterborne epoxy coating exhibited excellent smart corrosion protection efficiency by catalyzing the formation of passivation film on the 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.
Skip Nav Destination
Article navigation
1 December 2021
Research Article|
September 11 2021
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
Cheng Qian;
Cheng Qian
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
Search for other works by this author on:
Fengjuan Xiao;
Fengjuan Xiao
‡
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
‡Corresponding author. E-mail: [email protected].
Search for other works by this author on:
Xuefei Zhang;
Xuefei Zhang
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
Search for other works by this author on:
Meng Wang;
Meng Wang
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
Search for other works by this author on:
Lu Yan;
Lu Yan
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
Search for other works by this author on:
Shimao Longfei Kong;
Shimao Longfei Kong
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
Search for other works by this author on:
Hui Gao;
Hui Gao
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
Search for other works by this author on:
Guangtian Zhang;
Guangtian Zhang
**Hebei Academy of Building Research, Shijiazhuang 050021, China.
***Hebei Province science and technology Key Laboratory of solid waste for building materials (Preparation), ShiJiaZhuang 050021, China.
Search for other works by this author on:
Shifeng Fu;
Shifeng Fu
**Hebei Academy of Building Research, Shijiazhuang 050021, China.
***Hebei Province science and technology Key Laboratory of solid waste for building materials (Preparation), ShiJiaZhuang 050021, China.
Search for other works by this author on:
Mengya Li;
Mengya Li
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
Search for other works by this author on:
Jun Li
Jun Li
*School of Material Science and Engineering of Shijiazhuang Tiedao University, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang 050043, China.
Search for other works by this author on:
‡Corresponding author. E-mail: [email protected].
Online ISSN: 1938-159X
Print ISSN: 0010-9312
© 2021, AMPP
2021
CORROSION (2021) 77 (12): 1258–1273.
Citation
Cheng Qian, Fengjuan Xiao, Dong Zhao, Hualin Zhang, Shimao Wang, Zhiren Tian, Han Yang, Yumei Duan, Xuefei Zhang, Meng Wang, Lu Yan, Shimao Longfei Kong, Hui Gao, Guangtian Zhang, Shifeng Fu, Mengya Li, Jun Li; 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 1 December 2021; 77 (12): 1258–1273. https://doi.org/10.5006/3814
Download citation file:
