Anticorrosive properties and rust conversion mechanism of phytic acid-based surface tolerant coating

doi:10.1002/apj.2584

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

	Anticorrosive properties and rust conversion mechanism of phytic acid-based surface tolerant coating
	Xu, Hao ; Lu, Guangming ; Liu, Shuan ; Pu, Jibin ; Tian, Shu ; Mao, Chunlong ; Chen, Shanjun
刊名	ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
	2020
关键词	CORROSION PROTECTION COPPER CORROSION MAGNESIUM ALLOY HYBRID COATINGS GRAPHENE STEEL WATER CAPACITANCE RESISTANCE SEAWATER
DOI	10.1002/apj.2584
英文摘要	A phytic acid-based surface tolerant epoxy coating was prepared, and the effect of phytic acid on the corrosion resistance of the composite coating on rusty carbon steel substrate was investigated. The results showed that the low-frequency impedance modulus of the composite coating on rusty carbon steel could reached 10(8)omega center dot cm(2)order of magnitude after immersing for 480 h in 3.5 wt% NaCl solution. Compared with pure epoxy coating, the phytic acid-based surface tolerant epoxy coating on the rusty substrate exhibited better corrosion resistance even if with some artificial defects in the composite coating. The protective performance of the composite coating mainly came from the formation of a stable iron phytate chelate in the reaction of phytic acid and rust. For the rusty carbon steel, the original Fe(3+)on its surface was also transformed by phytic acid penetrating to the interface between the coating and the substrate. Therefore, a dense film was formed with the reaction of phytic acid and rust on the substrates, and the dense film became a part of the whole paint film, which could improve the corrosion resistance of the surface tolerant coating.
学科主题	Engineering
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20405]
专题	2020专题
作者单位	1.Liu, S 2.Pu, JB (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	Xu, Hao,Lu, Guangming,Liu, Shuan,et al. Anticorrosive properties and rust conversion mechanism of phytic acid-based surface tolerant coating[J]. ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,2020.
APA	Xu, Hao.,Lu, Guangming.,Liu, Shuan.,Pu, Jibin.,Tian, Shu.,...&Chen, Shanjun.(2020).Anticorrosive properties and rust conversion mechanism of phytic acid-based surface tolerant coating.ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING.
MLA	Xu, Hao,et al."Anticorrosive properties and rust conversion mechanism of phytic acid-based surface tolerant coating".ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING (2020).