Hyperbranched polyester modified graphene oxide on anti-corrosion performance of epoxy composite coatings for electric power system

被引:14
|
作者
Guo, Tao [1 ]
Li, Hao [2 ]
Ma, Xiaohong [1 ]
Shi, Lei [1 ]
Wang, Wei [1 ]
Zhang, Wei [1 ]
Li, Lu [3 ]
机构
[1] Guizhou Power Grid Co Ltd, Guiyang 550002, Peoples R China
[2] China Southern Power Grid Co Ltd CSG, Elect Power Res Inst, Guangzhou, Peoples R China
[3] Chongqing Zhixiang Paving Technol Engn Co Ltd, Chongqing, Peoples R China
关键词
Anti-corrosion coating; epoxy resin; graphene oxide; hyperbranched polyester; CORROSION PROTECTION PERFORMANCE; PROPERTIES ENHANCEMENT; CERIUM OXIDE; RESISTANCE; NANOSHEETS; MORPHOLOGY; CRYSTALLIZATION; NANOCOMPOSITES; IMPREGNATION; ADSORPTION;
D O I
10.1080/14658011.2020.1735180
中图分类号
TB33 [复合材料];
学科分类号
摘要
In this study, the hyperbranched polyester (HBP) was grafted onto the surface of graphene oxide (GO) to prepare functionalised GO (fGO). Results of X-ray photoelectron spectra, Thermogravimetric analysis, Fourier transform infrared spectroscopy and Transmission Electron Microscopy confirmed the success of grafting. Moreover, the anti-corrosion performance and barrier properties of the bare steel, and steel with epoxy (EP) coating, steel coated with EP/GO and EP/fGO were comparatively studied. It was found that EP/fGO showed enhanced anti-corrosion capability and barrier properties to H2O and O(2)compared with EP/GO, attributed to the surface modification of GO by HBP. Moreover, the role of surface modification using HBP on the performance of EP/GO composite coating was also discussed, related mechanism was proposed.
引用
收藏
页码:245 / 253
页数:9
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