Electrodeposition of TiO2 layer-by-layer assembled composite coating and silane treatment on Mg alloy for corrosion resistance

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	Electrodeposition of TiO2 layer-by-layer assembled composite coating and silane treatment on Mg alloy for corrosion resistance
	Cui, Lan-Yue; Qin, Peng-Hua; Huang, Xiao-Li; Yin, Zheng-Zheng; Zeng, Rong-Chang; Li, Shuo-Qi; Han, En-Hou; Wang, Zhen-Lin; Zeng, RC; Li, SQ (reprint author), Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266590, Peoples R China.
刊名	ELSEVIER SCIENCE SA
	2017-09-15
卷号	324 页码:560-568
关键词	Magnesium Alloy Silane Corrosion Resistance Layer By Layer Titania Nanoparticles
ISSN号	0257-8972
英文摘要	The layer-by-layer (LbL) assembly approach is a versatile way for the construction of multilayered nanoparticles coating. We demonstrated that the TiO2 nanoparticles could be assembled on magnesium (Mg) alloys via the modification of opposite charged poly(styrenesulfonate) and polyethylenimine. Adsorption of the polyelectrolyte layer occurred in the beaker where particles and the selected polyelectrolyte solution were mixed, creating a layer of polyelectrolyte on the nanoparticles. Then these surfaced-modified nanoparticles were LbL assembled on the Mg alloy by electro-deposition. Finally, the surface silanization would prevent the peeling off of the TiO2 nanoparticles and leads to stable assembly. The coated samples were examined using field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The corrosion of the alloys was examined using potentiodynamic polarization, electrochemical impedance spectroscopy. The results show that a well-controlled and integrated silanized LbL system has been constructed via PMTMS and polyelectrolyte modified nanoparticles, which could provide good protection for Mg alloys. (C) 2017 Elsevier B.V. All rights reserved.; The layer-by-layer (LbL) assembly approach is a versatile way for the construction of multilayered nanoparticles coating. We demonstrated that the TiO2 nanoparticles could be assembled on magnesium (Mg) alloys via the modification of opposite charged poly(styrenesulfonate) and polyethylenimine. Adsorption of the polyelectrolyte layer occurred in the beaker where particles and the selected polyelectrolyte solution were mixed, creating a layer of polyelectrolyte on the nanoparticles. Then these surfaced-modified nanoparticles were LbL assembled on the Mg alloy by electro-deposition. Finally, the surface silanization would prevent the peeling off of the TiO2 nanoparticles and leads to stable assembly. The coated samples were examined using field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The corrosion of the alloys was examined using potentiodynamic polarization, electrochemical impedance spectroscopy. The results show that a well-controlled and integrated silanized LbL system has been constructed via PMTMS and polyelectrolyte modified nanoparticles, which could provide good protection for Mg alloys. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Materials Science, Coatings & Films ; Physics, Applied
语种	英语
资助机构	National Natural Science Foundation of China [51571134]; Scientific Research Foundation of Shandong University of Science and Technology (SDUST) [2013RCJJ006]; SDUST Research Fund Science [2014TDJH104]
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79097]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zeng, RC; Li, SQ (reprint author), Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266590, Peoples R China.
推荐引用方式 GB/T 7714	Cui, Lan-Yue,Qin, Peng-Hua,Huang, Xiao-Li,et al. Electrodeposition of TiO2 layer-by-layer assembled composite coating and silane treatment on Mg alloy for corrosion resistance[J]. ELSEVIER SCIENCE SA,2017,324:560-568.
APA	Cui, Lan-Yue.,Qin, Peng-Hua.,Huang, Xiao-Li.,Yin, Zheng-Zheng.,Zeng, Rong-Chang.,...&Li, SQ .(2017).Electrodeposition of TiO2 layer-by-layer assembled composite coating and silane treatment on Mg alloy for corrosion resistance.ELSEVIER SCIENCE SA,324,560-568.
MLA	Cui, Lan-Yue,et al."Electrodeposition of TiO2 layer-by-layer assembled composite coating and silane treatment on Mg alloy for corrosion resistance".ELSEVIER SCIENCE SA 324(2017):560-568.