Synergistic effect of functional carbon nanotubes and graphene oxide on the anti-corrosion performance of epoxy coating

2016 ◽  
Vol 28 (6) ◽  
pp. 754-762 ◽  
Author(s):  
Hai Hu ◽  
Yi He ◽  
Zhihang Long ◽  
Yingqing Zhan
2022 ◽  
Vol 162 ◽  
pp. 106598
Author(s):  
Chunlin Chen ◽  
Guoqing Xiao ◽  
Fei Zhong ◽  
Shaotang Dong ◽  
Zhengwei Yang ◽  
...  

2019 ◽  
Vol 7 (8) ◽  
pp. 2318-2326 ◽  
Author(s):  
Chunlin Chen ◽  
Yi He ◽  
Guoqing Xiao ◽  
Fei Zhong ◽  
Hongjie Li ◽  
...  

Waterborne epoxy coatings (WECs), with significant anti-corrosion and self-healable performance were obtained through electrostatic self-assembly of graphene oxide (GO) and phosphate (PO43−)-intercalated hydrotalcite (PIH).


2020 ◽  
Author(s):  
Weiqiang Song ◽  
Xiaohua Liu ◽  
Qingsong Zhu ◽  
Yuxiang Zhang

ADTP-GO hybrid was prepared from multi-layered aluminum dihydric tripolyphosphate (ADTP) and flake-shaped graphene oxide (GO) by a coupling method using (3-aminopropyl) triethoxysilane (ASi) as the coupling agent. Characterization analyses of the hybrid were performed by FT-IR, XRD and SEM. The effect of incorporating 2wt% ADTP-GO hybrid on corrosion inhibition performance of epoxy coating was evaluated in 3.5wt.% NaCl aqueous solution by using Tafel and electrochemical impedance spectroscopy (EIS) analysis. For comparison, the effects of ADTP and GO, alone and in combination without coupling treatment were also evaluated. FT-IR and XRD showed the presence of the chemical interaction between ADTP and GO in ADTP-GO hybrid. SEM indicated that GO was spread on the surface of ADTP layers in the hybrid. Tafel and EIS data indicated that the hybrid displayed an anti-corrosion performance superior to ADTP/GO blend without coupling treatment. The superiority was attributed to the stronger synergetic effect of ADTP and GO in ADTP-GO hybrid than in ADTP/GO blend. Additionally, epoxy/ADTP/GO coating was better than pure epoxy, epoxy/ADTP, and epoxy/GO coatings in the anti-corrosion performance on mild steel. It seems that the combination of ADTP and GO produced synergistic effect, and the synergistic effect was more obvious after chemical coupling.


Sign in / Sign up

Export Citation Format

Share Document