Ammonium-grafted graphene oxide for enhanced corrosion resistance of waterborne epoxy coatings

2020 ◽  
Vol 383 ◽  
pp. 125227 ◽  
Author(s):  
Yuqin Tian ◽  
Yuhui Xie ◽  
Fei Dai ◽  
Haowei Huang ◽  
Li Zhong ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Graphene Oxide ◽  
Epoxy Coatings ◽  
Waterborne Epoxy

scholarly journals One-Step Preparation of Hyperbranched Polyether Functionalized Graphene Oxide for Improved Corrosion Resistance of Epoxy Coatings

Coatings ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 844 ◽  
Author(s):  
Xuepei Miao ◽  
An Xing ◽  
Lifan He ◽  
Yan Meng ◽  
Xiaoyu Li
Keyword(s):  
Corrosion Resistance ◽  
Graphene Oxide ◽  
Acid Resistance ◽  
Epoxy Coating ◽  
Functionalized Graphene ◽  
Step Method ◽  
Epoxy Coatings ◽  
Functionalized Graphene Oxide ◽  
One Step ◽  
Hyperbranched Polyether

In this paper, hyperbranched polyether functionalized graphene oxide (EHBPE-GO) was prepared by a facile one-step method. Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), thermogravimetric analyzer (TGA), and trans-mission electron microscopy (TEM) results confirmed the formation of EHBPE-GO. Then, EHBPE-GO was cured with phenolic amides at room temperature to prepare epoxy coatings. The corrosion resistance of epoxy coatings was investigated systematically by using electrochemical and traditional immersion methods. Results show that a small amount of EHBPE-GO (8 wt % of Diglycidyl ether of bisphenol A (DGEBA)) in epoxy coating achieves 50% higher improvement in acid-resistance than unmodified neat DGEBA resin. For the nanocomposite epoxy coating, the superior acid-resistance is attributed to the increased crosslink density and the impermeable 2D structure of EHBPE-GO. This work provides a facile strategy to develop the effective improved corrosion resistance nanofiller for epoxy coating.

Comparative corrosion resistance of graphene sheets with different structures in waterborne epoxy coatings

2018 ◽  
Vol 556 ◽  
pp. 273-283 ◽  
Author(s):  
Shengguo Zhou ◽  
Yangmin Wu ◽  
Wenjie Zhao ◽  
Jingjing Yu ◽  
Fengwei Jiang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Graphene Sheets ◽  
Epoxy Coatings ◽  
Waterborne Epoxy
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