Achieving long term anti-corrosion waterborne epoxy coating by attapulgite loaded octadecylamine/graphene nanocomposite

Yufang Li; Feng Nan

Polymer Testing (Dec 2023)

Achieving long term anti-corrosion waterborne epoxy coating by attapulgite loaded octadecylamine/graphene nanocomposite

Yufang Li,
Feng Nan

Affiliations

Yufang Li: Hubei Provincial Key Laboratory of Chemical Equipment Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
Feng Nan: Hubei Provincial Key Laboratory of Chemical Equipment Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; Corresponding author. Hubei Provincial Key Laboratory of Chemical Equipment Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, 430205, China.

Journal volume & issue: Vol. 129
p. 108290

Abstract

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Waterborne epoxy coating is an environmentally friendly anticorrosion coating that are gradually attracting people's attention. However, the anticorrosion performance of waterborne epoxy coatings is unsatisfactory. It is found that the incorporation of some nanomaterials can remarkably improve the anticorrosion properties of waterborne epoxy coatings. This study reports an environmental-friendly waterborne epoxy (EP) coating with enhanced corrosion protection performance by embedding prepared octadecylamine-attapulgite-graphene (ODA-ATP-G) nanocomposite. By the analysis of electrochemical impedance spectroscopy (EIS), it is found that ODA-ATP-G nanocomposites can signiﬁcantly improve the corrosion resistance of waterborne epoxy coating and provide long-time corrosion protection for the steel substrate. Through the analysis of UV–Visible Near Infrared Spectrophotometer, SEM, EDS and Raman, it is demonstrated that the reinforcement effect of ODA-ATP-G nanocomposites should be attributed to the barrier effect of ODA-ATP-G nanocomposite, the formation of hydrophobic protective film on the steel surface with the adsorption and deposition of ODA.

Published in Polymer Testing

ISSN: 0142-9418 (Print); 1873-2348 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Chemical technology: Polymers and polymer manufacture
Website: https://www.journals.elsevier.com/polymer-testing

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