The role of acetylacetone in alkaline surface modification bath of electro-galvanized steel to enhance protective functioning of a hybrid silane coating

被引：8
作者：
Nejad, Sepideh Akbaripoor Tafreshi [1 ]
Alibakhshi, Eiman [1 ]
Ramezanzadeh, Bahram [1 ]
Marhamati, Fatemeh [1 ]
Olivier, Marie-Georges [2 ]
Mahdavian, Mohammad [1 ]
机构：
[1] Inst Color Sci & Technol, Tehran, Iran
[2] Univ Mons, Fac Engn, Dept Mat Sci, Pl Parc 20, B-7000 Mons, Belgium
来源：
PROGRESS IN ORGANIC COATINGS | 2022年 / 171卷
关键词：
Surface modification; Electrogalvanized steel; Silane coating; Corrosion; CORROSION PROTECTION; NANOCOMPOSITE COATINGS; CHEMICAL-COMPOSITION; CHROMATE REPLACERS; MILD-STEEL; BIS-SILANE; PERFORMANCE; FILMS; PRETREATMENTS; RESISTANCE;
D O I：
10.1016/j.porgcoat.2022.107048
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The current work outlines the impact of acetylacetone (AcAc) in the alkaline surface treatment bath on durability and the anti-corrosion properties of electro-galvanized steel (EGS) coated with a hybrid silane composition. The surface characteristics of the EGS samples before and after modifications were appraised using atomic force microscopy, field emission scanning electron microscopy, and contact angle measurements confirming the changes in roughness, morphology and wettability properties imposed by surface treatments. To elucidate the chemical composition of the protecting layer developed on the surface of EGS, X-ray photoelectron spectroscopy was utilized which evidently endorsed forming a film consisting of zinc hydroxide, zinc oxide, and zinc acety-lacetonate. The corrosion resistance of the specimens during immersion in 3.5 % NaCl medium was determined using electrochemical impedance spectroscopy and polarization experiments. The low-frequency impedance (at 0.01 Hz) of silane-coated samples modified in the optimal condition (0.5 M NaOH bath) in the presence and absence of AcAc was respectively ca. 15,900, 5800 omega.cm(2). The electrochemical results corroborated the over-riding role of a trace amount of AcAc in the corrosion protection of silane-coated EGS samples. The novel surface treatment proposed in this work provides improved corrosion protection of silane coating on EGS having the lowest icorr and presenting inhibition efficiency of 74 % in polarization experiment.
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页数：11
相关论文
共 63 条
[21]   A highly efficient hydrogen generation electrolysis system using alkaline zinc hydroxide solution [J].
Horri, Bahman Amini ;
Choolaei, Mohammadmehdi ;
Chaudhry, Aneeb ;
Qaalib, Hassan .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (01) :72-81
[22]  
Jiang HM, 2004, J MATER PROCESS TECH, V151, P248, DOI [10.1016/j.jmatprotec.2004.04.069, 10.1016/j.matprotec.2004.04.069]
[23]   Study of the degradation of hybrid sol-gel coatings in aqueous medium [J].
Juan-Diaz, M. J. ;
Martinez-Ibanez, M. ;
Hernandez-Escolano, M. ;
Cabedo, L. ;
Izquierdo, R. ;
Suay, J. ;
Gurruchaga, M. ;
Goni, I. .
PROGRESS IN ORGANIC COATINGS, 2014, 77 (11) :1799-1806
[24]   Synthesis of a multi-functional zinc-centered nitrogen-rich graphene-like thin film from natural sources on the steel surface for achieving superior anti-corrosion properties [J].
Keramatinia, Motahhare ;
Ramezanzadeh, Mohammad ;
Bahlakeh, Ghasem ;
Ramezanzadeh, Bahram .
CORROSION SCIENCE, 2021, 178
[25]   A tailored pulsed substrate bias voltage deposited (a-C: Nb) thin-film coating on GTD-450 stainless steel: Enhancing mechanical and corrosion protection characteristics [J].
Khamseh, Sara ;
Alibakhshi, Eiman ;
Ramezanzadeh, Bahram ;
Sari, Morteza Ganjaee .
CHEMICAL ENGINEERING JOURNAL, 2021, 404
[26]   Tailoring hardness and electrochemical performance of TC4 coated Cu/a-C thin coating with introducing second metal Zr [J].
Khamseh, Sara ;
Alibakhshi, Eiman ;
Ramezanzadeh, Bahram ;
Lecomte, Jean-Sebastien ;
Laheurte, Pascal ;
Noirefalize, Xavier ;
Laoutid, Fouad ;
Vahabi, Henri .
CORROSION SCIENCE, 2020, 172
[27]   Review of zinc-based hybrid flow batteries: From fundamentals to applications [J].
Khor, A. ;
Leung, P. ;
Mohamed, M. R. ;
Flox, C. ;
Xu, Q. ;
An, L. ;
Wills, R. G. A. ;
Morante, J. R. ;
Shah, A. A. .
MATERIALS TODAY ENERGY, 2018, 8 :80-108
[28]   Post treatment of silane and cerium salt as chromate replacers on galvanized steel [J].
Kong Gang ;
Lu Jintang ;
Wu Haijiang .
JOURNAL OF RARE EARTHS, 2009, 27 (01) :164-168
[29]   Formation of Composite Coatings on Galvanized Steel from Organosilane Solutions Using Electrophoresis and Sol-Gel Technology [J].
Makarychev, Yuriy B. ;
Gladkikh, Natalia A. ;
Redkina, Galina, V ;
Grafov, Oleg Yu ;
Aliev, Ali D. ;
Kuznetsov, Yuriy, I .
MATERIALS, 2022, 15 (07)
[30]   Corrosion of mild steel in hydrochloric acid solution in the presence of two cationic gemini surfactants with and without hydroxyl substituted spacers [J].
Mandavian, Mohammad ;
Tehrani-Bagha, Ali Reza ;
Alibakhshi, Eiman ;
Ashhari, Shabnam ;
Palimi, Mohammad Javad ;
Farashi, Sajad ;
Javadian, Soheila ;
Ektefa, Fatemeh .
CORROSION SCIENCE, 2018, 137 :62-75
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