多巴胺表面改性CNTs制备微纳双重结构的Ni/CNTs@pDA超疏水复合镀层

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Abstract In order to enhance the corrosion resistance, rub resistance and wear resistance of Ni/CNTs composite coating, surface modification of carbon nanotubes (CNTs) was carried out by dopamine (DA), and the hydrophilicity of CNTs and the bonding between CNTs and the substrate was improved obviously. The high resolution transmission electronic microscope (HRTEM) and energy dispersive spectrometer (XPS) confirmed that the CNTs were coated with poly-dopamine (pDA) up to 3.6 nm. Then the tribological properties and corrosion behavior of the composite coating were measured by ball-on-disk wear tester and electrochemical workstation. The results showed that the performance of Ni/CNTs@pDA compo-site coating is better than the pure nickel coating. Finally,tridecafluorooctyl trimethoxysilane (FAS) was selected to modify the composite coating surface to improve their hydrophobicity. The maximum contact angle measuring up to 152.7°.

Key words： carbon nanotubes dopamine surface modification friction and wear electrochemical corrosion superhydrophobicity micro/nano binary structures

Published: 25 November 2019

CLC number:

TG178

About author:: Jianfeng Chen, is a lecturer at Nanchang University.From September 2012 to June 2017, he obtained the doctor’s degree in instrument science and technology engineering from University of Science and Technology of China. As the first author, he has published more than 10 papers in academic journals at home and abroad. He is a reviewer of several academic journals.The research work mainly focuses on micro-nano engineering to carry out research on advanced micro-nano processing technology and the interface interaction mechanism of bionic table.
Xiaobing Li, male, born in 1979, associate professor/doctor, visiting scholar of Georgia Institute of Technology, USA, deputy director of department of mechanical engineering, school of mechanical and electrical engineering, Nanchang University.He is also the member of youth committee of surface engineering branch of Chinese mechanical engineering society, deputy secretary general of tribology branch of Jiangxi mechanical engineering society, director of surface engineering branch, director of Jiangxi engineering graphics society. Mainly engaged in research on mechanical product innovation, surface engineering and tribology, etc. He has presided over and participated in 10 scientific research projects at or above provincial and ministerial level, including the national natural science foundation of China and the provincial natural science foundation, published more than 60 academic papers, including more than 10 papers included in SCI and EI, and applied for more than 60 invention patents.

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	CHEN Jianfeng
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	WANG Kaidong
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Cite this article:

CHEN Jianfeng,WANG Fangming,ZHONG Shifang, et al. Preparation of Super-hydrophobic Ni/CNTs@pDA Composite Coating with Micro/Nano Binary Structures by Dopamine Modification[J]. Materials Reports, 2019, 33(Z2): 568-572.

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http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2019/V33/IZ2/568

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