Preparation of graphene oxide–boron nitride hybrid to reinforce the corrosion protection coating

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Xiaoling Liu ◽  
Shougang Chen ◽  
Yingjun Zhang ◽  
Mingshun Liu ◽  
Wilfred Emori ◽  
...  

Abstract Coatings based on a graphene oxide–boron nitride/epoxy (GO–BN/EP) system were fabricated and applied for corrosion protection of metal substrates. GO–BN hybrid sheet synthesized by using a modified Hummers’ method had a higher lipophilicity than GO and BN. Then, GO–BN hybrid was incorporated into an epoxy coating to investigate the compactness and the corrosion protection ability of GO–BN hybrid/epoxy coating for metal substrates. The results show that GO–BN hybrid presents a desirable dispersibility in epoxy coating, exhibiting an outstanding barrier property for corrosive ions in a 3.5 wt% NaCl solution among the four systems under investigation. The present study set forth an innovative method to synthesize GO–BN hybrid in the field of corrosion protection.

2020 ◽  
Vol 981 ◽  
pp. 29-33
Author(s):  
Nurul Huda Abu Bakar ◽  
Jamil Ismail ◽  
Kwok Feng Chong

Corrosion performance of graphene oxide (GO) coatings from different sheets sizes in 3.5 wt% NaCl solution was investigated. The GO dispersion was subjected to 5 and 10 hours of ultrasonication before electrophoretically deposited (EPD) onto the copper substrate. It was found that the EPD-GO coating from smaller sheets (10h ultrasonication) possess hydrophobic, thinner film and smooth surfaces. It is suggested that the corrosion performance of the coating from smaller GO sheets is improved due to the surface texture and compactness of the coating as compared to the larger GO sheets.


2008 ◽  
Vol 53 (5) ◽  
pp. 2087-2094 ◽  
Author(s):  
S. Sathiyanarayanan ◽  
S. Syed Azim ◽  
G. Venkatachari

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