Corrosion study of the graphene oxide and reduced graphene oxide-based epoxy coatings

被引：71

作者：

Ghauri, Faizan Ali ^{[1
,2
]}

Raza, Mohsin Ali ^{[1
]}

Baig, Muhammad Saad ^{[1
]}

Ibrahim, Shoaib ^{[1
]}

机构：

[1] Univ Punjab, CEET, Dept Met & Mat Engn, Lahore 54590, Pakistan

[2] Univ Punjab, CEET, Dept Met & Mat Engn, Adv Mat Res Lab, Lahore 54590, Pakistan

来源：

MATERIALS RESEARCH EXPRESS | 2017年 / 4卷 / 12期

关键词：

coatings; reduced graphene oxide; graphene oxide; electrochemical impedance spectroscopy; WATER; PROTECTION; COPPER; FILMS;

D O I：

10.1088/2053-1591/aa9aac

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work aims to determine the effect of graphene oxide (GO) and reduced graphene oxide (rGO) incorporation as filler on the corrosion protection ability of epoxy coatings in saline media. GO was derived from graphite powder following modified Hummers' method, whereas rGO was obtained after reduction of GO with hydrazine solution. About 1 wt.% of GO or rGO were incorporated in epoxy resin by solution mixing process followed by ball milling. GO and rGO-based epoxy composite coatings were coated on mild steel substrates using film coater. The coated samples were characterized by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization tests after 1 and 24 h immersion in 3.5% NaCl. The results suggested that GO-based epoxy composite coatings showed high impedance and low corrosion rate.

引用

页数：9

共 26 条

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