Surface modification of Mg/Al layered double hydroxide by camphorsulfonic acid doped polyaniline and its applications for anticorrosive coating

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

	Surface modification of Mg/Al layered double hydroxide by camphorsulfonic acid doped polyaniline and its applications for anticorrosive coating
	Liu, Guangzhou; Du, Peng; Liu, Chengbao; Qiu, Shihui; Zhao, Haichao
刊名	SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
	2018
卷号	6 期号:3
关键词	Electrochemical Impedance Spectroscopy Corrosion Protection Electrical-properties Nitrogen Atmosphere Performance Aluminum Hybrid Polymerization Nanostructure Polarization
英文摘要	Although Mg/Al layered double hydroxide has significant anion exchange capability and hydrophobicity, its layer-blocking performance is rarely investigated for anti-corrosive performance. In this work, the camphorsulfonic acid doped polyaniline(CPANI)-modified Mg/Al layered double hydroxide (LDH) composites were successfully prepared through oxidative polymerization with an aim to improve dispersion of hydrotalcite in waterborne epoxy resin. Through a series of basic characterizations, camphorsulfonic acid doped polyaniline was successfully coated on the surface of layered double hydroxide and its dispersibility in water was greatly improved. In addition, the CPANI modified LDH was pigmented into waterborne epoxy resin to form a composite coating, further, potentiodynamic curve and electrochemical impedance spectroscopy were employed to study the corrosion behavior in 3.5 wt% NaCl aqueous solution. Composite coating with CPANI/LDH exhibited excellent anticorrosion performance owing to the barrier and passive effect of LDH and CPANI. The optimized specimen CAPNI/LDH0.5% presents a superior barrier property during 45 d immersion compared with pure epoxy coating.
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/174433/17238]
专题	2018专题
推荐引用方式 GB/T 7714	Liu, Guangzhou,Du, Peng,Liu, Chengbao,et al. Surface modification of Mg/Al layered double hydroxide by camphorsulfonic acid doped polyaniline and its applications for anticorrosive coating[J]. SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES,2018,6(3).
APA	Liu, Guangzhou,Du, Peng,Liu, Chengbao,Qiu, Shihui,&Zhao, Haichao.(2018).Surface modification of Mg/Al layered double hydroxide by camphorsulfonic acid doped polyaniline and its applications for anticorrosive coating.SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES,6(3).
MLA	Liu, Guangzhou,et al."Surface modification of Mg/Al layered double hydroxide by camphorsulfonic acid doped polyaniline and its applications for anticorrosive coating".SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES 6.3(2018).