Highly orientated graphene/epoxy coating with exceptional anti-corrosion performance for harsh oxygen environments

被引：123

作者：

Wang, Xiao ^{[1
,2
,3
,4
]}

Li, Yuan ^{[1
,2
,3
,4
]}

Li, Cheng ^{[1
,2
,3
,4
]}

Zhang, Xiguang ^{[1
,2
,3
,4
]}

Lin, Dan ^{[1
,2
,3
,4
]}

Xu, Fei ^{[1
,2
,3
,4
]}

Zhu, Yanji ^{[3
,4
]}

Wang, Huaiyuan ^{[1
,2
,3
,4
]}

Gong, Jinlong ^{[1
,2
,3
]}

Wang, Tuo ^{[1
,2
,3
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300350, Peoples R China

[2] Tianjin Univ, State Key Lab Chem Engn, Tianjin 300350, Peoples R China

[3] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China

[4] Tianjin Univ, Tianjin Key Lab Chem Proc Safety & Equipment Tech, Tianjin 300072, Peoples R China

来源：

CORROSION SCIENCE | 2020年 / 176卷

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

High pressure oxygen corrosion; Orientation of graphene; Anti-corrosion; Epoxy composite coating;

D O I：

10.1016/j.corsci.2020.109049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein, we designed a spin coating method and fabricated highly orientated graphene/epoxy (OG/EP) coating with long-term anti-corrosion performance. Surprisingly, the impedance at 0.01 Hz of OG/EP coating still remained at a relatively high value after 7 days of immersion in 3 MPa pure O-2 and 3.5 wt% NaCl coupling environment, which was about 10(3) and 8 x 10(5) times higher than pure epoxy (Spin-EP and Spray-EP) and randomly arranged graphene/epoxy coatings', respectively. The protection mechanism of OG/EP coating is interpreted as the orientation of graphene, maximizing the barrier effect of graphene and avoiding the formation of graphene conductive network.

引用

页数：11

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