IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Novel preparation system of an organic-inorganic hybrid chemical conversion layer with high chlorine tolerance: A characterization and mechanism study
Gao, Xiang1,3; Yan, Ru2; Ma, Hongfang4; Song, Liying5
2020-06-25
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume392Pages:10
Corresponding AuthorGao, Xiang(gaoxiangqlu@126.com) ; Ma, Hongfang(merryhf@163.com) ; Song, Liying(songliying0520@163.com)
AbstractThe 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.
KeywordPretreatment layer High chlorine tolerance Polyacrylic acid Coating system Corrosion
DOI10.1016/j.surfcoat.2020.125739
Indexed BySCI
Language英语
Funding ProjectIntroduction 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 Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000528843600018
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167350
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorGao, Xiang; Ma, Hongfang; Song, Liying
Affiliation1.Qilu Univ Technol, Engn & Technol Ctr Electrochem, Sch Chem & Pharmaceut Engn, Shandong Acad Sci, Jinan 250353, Peoples R China
2.Liaocheng Univ, Dept Chem, 1 Hunan Rd, Liaocheng 252059, Shandong, 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, Sch Environm Sci & 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
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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