Active anti-corrosion of epoxy coating by nitrite ions intercalated MgAl LDH

doi:10.1016/j.jhazmat.2020.122215

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 > 2020专题

	Active anti-corrosion of epoxy coating by nitrite ions intercalated MgAl LDH
	Su, Yue ; Qiu, Shihui ; Yang, Dongping ; Li, Shuan ; Zhao, Haichao ; Wang, Liping ; Xue, Qunji
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2020
卷号	391
关键词	LAYERED DOUBLE HYDROXIDE CORROSION PROTECTION CONTROLLED-RELEASE PITTING CORROSION CARBON-STEEL NANOCOMPOSITE COATINGS PERFORMANCE PARTICLES RESISTANCE CONCRETE
DOI	10.1016/j.jhazmat.2020.122215
英文摘要	Layered double hydroxide (LDH) with NO2- intercalation was successfully prepared via acidification oscillation and ion exchange. The nano-fillers were incorporated into the resin to prepare anti-corrosion coatings with the thickness of ca. 50 +/- 5 mu m The electrochemical and self-repairing properties of the LDH-doped coatings were studied by EIS and LEIS. Results indicated that the addition of LDH loaded with nitrite induced obvious increased in the impedance of coating (from 4.64 x 10(8) Omega cm(2) to 2.14 x 10(10) Omega cm(2)) and improved the anticorrosion performance of the coating. In addition, the localized corrosion of coatings could be largely inhibited, and the released nitrite ions from LDH interlayers exhibited active anticorrosion functions. When LDH nanosheets were added to the coatings, the lamella structures improved the barrier performances of the coatings. At the same time, the excellent ion exchanges ability of LDH could be used as storage stations for chloride ions, and the release of nitrite ions could play an active anti-corrosion role. Both of them cooperated to synergistically improve the anti-corrosion performance of the coating.
学科主题	Engineering ; Environmental Sciences & Ecology
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20749]
专题	2020专题
作者单位	1.Zhao, HC 2.Wang, LP (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Su, Yue,Qiu, Shihui,Yang, Dongping,et al. Active anti-corrosion of epoxy coating by nitrite ions intercalated MgAl LDH[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,391.
APA	Su, Yue.,Qiu, Shihui.,Yang, Dongping.,Li, Shuan.,Zhao, Haichao.,...&Xue, Qunji.(2020).Active anti-corrosion of epoxy coating by nitrite ions intercalated MgAl LDH.JOURNAL OF HAZARDOUS MATERIALS,391.
MLA	Su, Yue,et al."Active anti-corrosion of epoxy coating by nitrite ions intercalated MgAl LDH".JOURNAL OF HAZARDOUS MATERIALS 391(2020).