Phytic acid doped polyaniline containing epoxy coatings for corrosion protection of Q235 carbon steel

2017 ◽  
Vol 419 ◽  
pp. 826-837 ◽  
Author(s):  
Yongsheng Hao ◽  
Luqman Abdullahi Sani ◽  
Tiejun Ge ◽  
Qinghong Fang
2018 ◽  
Vol 56 (3B) ◽  
pp. 96
Author(s):  
Anh Son Nguyen ◽  
Thuy Duong Nguyen ◽  
Thu Thuy Thai

The presence work investigates the corrosion protection of waterborne epoxy coatings containing CeO2 nanoparticles activated with cerium salt for the carbon steel substrates. First, the dispersion of activated nanoparticles in the epoxy matrix was observed by field emission scanning electron microscopy (FESEM). The electrochemical impedance spectroscopy (EIS) was carried out to evaluate the role of the activated-CeO2 nanoparticles in the organic coatings immersed in a 0.5 M NaCl solution. Thus, the effect of the cerium ion activated ceria nanoparticles on the coatings presented the artificial defect in the aggressive environment was examined via salt spray test. Complementary studies were performed using the cross-cut and pull-off test to assess the adherence properties of the samples. Results revealed that the presence of activated-CeO2 nanoparticles enhanced corrosion protection properties of waterborne epoxy coating without losing adherence properties.


2017 ◽  
Vol 407 ◽  
pp. 213-222 ◽  
Author(s):  
Shihui Qiu ◽  
Cheng Chen ◽  
Mingjun Cui ◽  
Wei Li ◽  
Haichao Zhao ◽  
...  

2014 ◽  
Vol 599-601 ◽  
pp. 3-6
Author(s):  
Xia Zhao ◽  
Shuan Liu ◽  
Bao Rong Hou

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.


2019 ◽  
Vol 132 ◽  
pp. 227-234 ◽  
Author(s):  
Shuanger Shi ◽  
Yunyan Zhao ◽  
Zhiming Zhang ◽  
Liangmin Yu

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