Anti-corrosion mechanism of 2D nanosheet materials in waterborne epoxy coatings

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Anti-corrosion mechanism of 2D nanosheet materials in waterborne epoxy coatings
	Wang, Deliang; Wu, Yangmin; Yu, Jingjing; Zhao, Wenjie; Liu, Gang
刊名	SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
	2018
卷号	6 期号:3
关键词	Corrosion Protection Composite Coatings Graphene Steel Nanocomposite Performance Behavior Copper Media Flake
英文摘要	Nowadays, 2D nanosheet materials play a crucial role in enhancing the corrosion resistance ability of organic coatings. In this work, three kinds of 2D nanosheet materials with different conductivity including graphene (G), graphene oxide (GO) and hexagonal boron nitride (H-BN) were specially chosen and functionalized by 3-aminopropyltriethoxysilane (APTES). Then, a series of waterborne epoxy composite coatings were fabricated by incorporation of functionalized graphene (FG), graphene oxide (FGO) and hexagonal boron nitride (FH-BN). The microstructure and morphology feature of FG, FGO and FH-BN were characterized by Fourier transform infrared spectroscopy, x-ray diffraction, scanning electron microscopy and transmission electron microscopy. The corrosion resistance of composite coatings was obtained by Tafel analysis and electrochemical impedance spectroscopy measurements by being immersed in a 3.5 wt% NaCl aqueous solution for different periods. It turns out that the composite coating with FH-BN additive exhibited the best anticorrosive ability among all samples. The analysis of corrosion products on the Q235 surface suggest that the anticorrosive performance of 2D materials reinforced epoxy composites coatings were not only dependent on the barrier properties but also was affected by the properties of the 2D nanosheet materials. In addition, the distinct anti-corrosion mechanisms of 2D nanosheet materials incorporated with waterborne epoxy were tentatively discussed.
学科主题	Physics
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17229]
专题	2018专题
推荐引用方式 GB/T 7714	Wang, Deliang,Wu, Yangmin,Yu, Jingjing,et al. Anti-corrosion mechanism of 2D nanosheet materials in waterborne epoxy coatings[J]. SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES,2018,6(3).
APA	Wang, Deliang,Wu, Yangmin,Yu, Jingjing,Zhao, Wenjie,&Liu, Gang.(2018).Anti-corrosion mechanism of 2D nanosheet materials in waterborne epoxy coatings.SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES,6(3).
MLA	Wang, Deliang,et al."Anti-corrosion mechanism of 2D nanosheet materials in waterborne epoxy coatings".SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES 6.3(2018).