Amino-Modified Graphene Oxide from Kish Graphite for Enhancing Corrosion Resistance of Waterborne Epoxy Coatings-Reference-Cited by-同舟云学术

Amino-Modified Graphene Oxide from Kish Graphite for Enhancing Corrosion Resistance of Waterborne Epoxy Coatings

Published:2024-03-06 Issue:5 Volume:17 Page:1220
ISSN:1996-1944
Container-title:Materials
language:en
Short-container-title:Materials

Author:

Hao Shengle¹²,Wan Siming¹,Hou Shiyu²,Yuan Bowen³,Luan Chenhui¹,Nan Ding³⁴^ORCID,Huang Gen¹,Xu Deping¹,Huang Zheng-Hong²^ORCID

Affiliation:

1. School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China

2. Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

3. Inner Mongolia Key Laboratory of Graphite and Graphene for Energy Storage and Coating, School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China

4. College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China

Abstract

Waterborne epoxy (WEP) coatings with enhanced corrosion resistance were prepared using graphene oxide (GO) that was obtained from kish graphite, and amino-functionalized graphene oxide (AGO) was modified by 2-aminomalonamide. The structural characteristics of the GO and AGO were analyzed using X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). And the anti-corrosive performance of waterborne epoxy-cased composite coatings with different addition amounts of AGO was investigated using electrochemical measurements, pull-off adhesion tests, and salt spray tests. The results indicate that AGO15/WEP with 0.15 wt.% of AGO has the best anti-corrosive performance, and the lowest frequency impedance modulus increased from 1.03 × 108 to 1.63 × 1010 ohm·cm−2 compared to that of WEP. Furthermore, AGO15/WEP also demonstrates the minimal corrosion products or bubbles in the salt spray test for 200 h, affirming its exceptional long-term corrosion protection capability.

Funder

Inner Mongolia Autonomous Region Major Science and Technology Project

Publisher

MDPI AG

Link

https://www.mdpi.com/1996-1944/17/5/1220/pdf

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