Performance of Coating Based on β-CD-g-GO/epoxy Composites for the Corrosion Protection of Steel

被引：9
作者：
Feng, Chun [1 ,2 ]
Zhu, Lijuan [1 ,2 ]
Cao, Yaqiong [1 ,2 ]
Di, Yin [3 ]
Yu, Zongxue [3 ]
Gao, Guhui [4 ]
机构：
[1] CNPC Tubular Goods Res Inst, Xian 710077, Shaanxi, Peoples R China
[2] State Key Lab Performance & Struct Safety Petr Tu, Xian 710077, Shaanxi, Peoples R China
[3] Southwest Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Sichuan, Peoples R China
[4] Redbud Innovat Inst, Tianjin 301800, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2019年 / 14卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Graphene oxide; Beta-cyclodextrin; Corrosion resistance; Epoxy coating; GRAPHENE OXIDE; MECHANICAL-PROPERTIES; NANOCOMPOSITES; ANTICORROSION; CYCLODEXTRIN; RESISTANCE; ADSORPTION;
D O I：
10.20964/2019.02.12
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
This study reports a new strategy for enhancing the anti-corrosion properties of epoxy coatings. For this purpose, beta-cyclodextrin-graphene oxide (beta-CD-g-GO) nanosheets were synthesized via anchoring beta-cyclodextrin on a graphene oxide surface in the presence of 3-glycidoxypropyltrimethoxysilane (KH560). The structure of the material was characterized by SEM, EDX, XRD, FT-IR and TGA. The inclusion of 2 wt. % GO and beta-CD-g-GO nanosheets in epoxy resin remarkably enhanced the corrosion protection performance of the material relative to that of pure epoxy coating. Electrochemical impedance spectroscopy (EIS) measurements revealed that the impedance of the epoxy coating was improved after the addition of 2 wt. % GO and beta-CD-g-GO nanosheets. The most pronounced improvement in the properties of the epoxy coating was obtained using beta-CD-g-GO nanosheets. Scratches tests confirmed the reduced steel substrate corrosion in the case of epoxy coating that included beta-CD-g-GO nanosheets compared to the corrosion obtained for other samples.
引用
收藏
页码：1855 / 1868
页数：14
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