Effect of Alginate Additives on the Microstructure and Properties of Phytic Acid-based Conversion Coating on a Steel Surface

doi:10.20964/2019.12.04

	Effect of Alginate Additives on the Microstructure and Properties of Phytic Acid-based Conversion Coating on a Steel Surface
	Lu, Yong 1,2; Feng, Huixia1
	2019-12
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN	1452-3981
卷号	14 期号:12 页码:11429-11444
摘要	Phytic acid (PA) has a potential use as a coating on metal surface to retard corrosion. However, a loose structure and micro-cracks in the phytic acid coating layer damage the tightness of the coating, providing channels for the infiltration of corrosive media and seriously weakening the protective effect of the coating. Sodium alginate (SA) was added as an accelerating agent to improve the anti-corrosion protective effect and coating densification of the phytic acid coating on a Q235 steel surface. The micro-morphology, elemental composition and elemental chemical state of different samples were observed by the surface analysis technologies of scanning electron microscopy (SEM) equipped with X-ray energy dispersive spectrum (EDS) and X-ray photoelectron spectroscopy (XPS), all of which show a dense and homogenous phytic acid film with lower crack was precipitated on the sample treated by PA-SA conversion coating. Atomic force microscopy (AFM) and contact angle measurements were used to evaluate the adhesion properties of the prepared coating and the results showed that the PA-SA coated steel exhibited better wettability and adhesion to the top layers compared to the bare steel and phytic acid coating. The electrochemical measurements show that the corrosion resistance of the conversion coating was markedly improved on the steel substrate treated by phytic acid conversion bath containing SA.
关键词	sodium alginate conversion coating phytic acid adhesion corrosion
DOI	10.20964/2019.12.04
收录类别	SCI
语种	英语
资助项目	China's Ministry of Science and Technology"Project for science and technology personnel service enterprise"[2009GJG10041]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000502341900060
出版者	ESG
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/64160
专题	教务处（创新创业学院）
通讯作者	Lu, Yong
作者单位	1.Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou, Gansu, Peoples R China 2.Lanzhou Petrochem Corp Petrochina, Res Inst, Lanzhou, Gansu, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Lu, Yong,Feng, Huixia. Effect of Alginate Additives on the Microstructure and Properties of Phytic Acid-based Conversion Coating on a Steel Surface[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2019,14(12):11429-11444.
APA	Lu, Yong,&Feng, Huixia.(2019).Effect of Alginate Additives on the Microstructure and Properties of Phytic Acid-based Conversion Coating on a Steel Surface.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,14(12),11429-11444.
MLA	Lu, Yong,et al."Effect of Alginate Additives on the Microstructure and Properties of Phytic Acid-based Conversion Coating on a Steel Surface".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 14.12(2019):11429-11444.