Novel preparation system of an organic-inorganic hybrid chemical conversion layer with high chlorine tolerance: A characterization and mechanism study

doi:10.1016/j.surfcoat.2020.125739

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋腐蚀与防护研究发展中心

	Novel preparation system of an organic-inorganic hybrid chemical conversion layer with high chlorine tolerance: A characterization and mechanism study
	Gao, Xiang 3,4; Yan, Ru 1; Ma, Hongfang 2; Song, Liying 5
刊名	SURFACE & COATINGS TECHNOLOGY
	2020-06-25
卷号	392 页码:10
关键词	Pretreatment layer High chlorine tolerance Polyacrylic acid Coating system Corrosion
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2020.125739
通讯作者	Gao, Xiang(gaoxiangqlu@126.com) ; Ma, Hongfang(merryhf@163.com) ; Song, Liying(songliying0520@163.com)
英文摘要	The quality of the pretreatment layer on steel was obviously affected by the chloridion concentration in the layer bath. In this study, the effects of chloridion on the micro- anti-corrosion performance, structure and chemical composition of polyacrylic acid (PAA) based layer were investigated. PAA-Zn layer and PAA-Zn-NaCl layers were fabricated on steel surface through immersion the steel in the layer bath without and with different concentrations of chloridion for 20 min. The electrochemical impedance spectroscopy and polarization curve results indicated that the anti-corrosion performance of the PAA-Zn layer could be improved due to the existence of chloridion in the layer bath and reached the best anti-corrosion performance when the concentration of chloridion was 2 wt%. Scanning electron microscopy results reflected that the thickness of the PAA-Zn-2%NaCl layer was higher than that of PAA-Zn layer. X-ray photoelectron spectroscopy results demonstrated that the concentrations of iron and zinc for the PAA-Zn-2%NaCl layer were higher than that of the PAA-Zn layer. The all experimental results indicated that chloridion could accelerate the steel corrosion during the initial immersion and thus promote PAA ionization and produce numerous iron ions. The formed PAA anions could chelate iron and zinc ions to form layers on steel, leading to the high chlorine tolerance characteristic of the PAA layer bath.
资助项目	Introduction and Cultivation Plan of Young Creative Talents in Shandong Province ; Higher Education Science and Technology Project of Shandong Province[J18KA023] ; International Cooperation Research Project of Qilu University of Technology[QLUTGJHZ2018003] ; Foundation of State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences[ZZ20190108]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000528843600018
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/167349]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Gao, Xiang; Ma, Hongfang; Song, Liying
作者单位	1.Liaocheng Univ, Dept Chem, 1 Hunan Rd, Liaocheng 252059, Shandong, Peoples R China 2.Qilu Univ Technol, Sch Environm Sci & Engn, Shandong Acad Sci, Jinan 250353, Peoples R China 3.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Shandong Key Lab Biochem Anal, Qingdao 266042, Peoples R China 4.Qilu Univ Technol, Engn & Technol Ctr Electrochem, Sch Chem & Pharmaceut Engn, Shandong Acad Sci, Jinan 250353, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Gao, Xiang,Yan, Ru,Ma, Hongfang,et al. Novel preparation system of an organic-inorganic hybrid chemical conversion layer with high chlorine tolerance: A characterization and mechanism study[J]. SURFACE & COATINGS TECHNOLOGY,2020,392:10.
APA	Gao, Xiang,Yan, Ru,Ma, Hongfang,&Song, Liying.(2020).Novel preparation system of an organic-inorganic hybrid chemical conversion layer with high chlorine tolerance: A characterization and mechanism study.SURFACE & COATINGS TECHNOLOGY,392,10.
MLA	Gao, Xiang,et al."Novel preparation system of an organic-inorganic hybrid chemical conversion layer with high chlorine tolerance: A characterization and mechanism study".SURFACE & COATINGS TECHNOLOGY 392(2020):10.