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Ovari TR, Trufán B, Katona G, Szabó G, Muresan LM. Correlations between the anti-corrosion properties and the photocatalytic behavior of epoxy coatings incorporating modified graphene oxide deposited on a zinc substrate. RSC Adv 2024; 14:10826-10841. [PMID: 38577435 PMCID: PMC10989242 DOI: 10.1039/d4ra00413b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/25/2024] [Indexed: 04/06/2024] Open
Abstract
This research aimed to create a substrate-coating system based on zinc and an epoxy resin incorporating modified graphene oxide, which possesses two key characteristics: effective resistance against corrosion and the ability to harness photocatalytic properties. Furthermore, correlations between the anti-corrosion properties and the photocatalytic behaviour of the coatings were made. Thin epoxy (EP) layers embedding 0.1 wt% graphene oxide (GO), reduced graphene oxide (rGO), and modified graphene oxide with (3-aminopropyl)-triethoxysilane (APTES) or poly(amidoamine) (PAMAM) dendrimer were applied on a zinc (Zn) substrate using the dip-coating method. Anti-corrosion properties of coated Zn samples were investigated through electrochemical impedance spectroscopy (EIS) measurements. They showed that the corrosion protection effect is more prominent for EP containing functionalized GO, the highest in the case of GO-PAMAM. The results of the EIS measurements indicated also that the corrosion protection provided by EP-rGO is smaller than that of EP. The photocatalytic properties of the coatings were studied by exposure of the samples to Methylene Blue (MB) solution followed by monitoring the model dye degradation through UV-Vis measurements. To determine the changes in the anti-corrosion properties due to photocatalysis, the coated Zn samples were put through additional EIS measurements. The same coatings applied to a glass substrate lacked photocatalytic properties, indicating that the Zn substrate is accountable for the degradation of MB. Furthermore, the incorporation of GO or functionalized GO into the coating amplifies this effect. From EIS spectra, it was determined that the protective properties loss observed after 3 days is due to coating delamination during exposure to MB solution, the EP-GO-APTES retaining the best adhesion of the coating, 98% remaining on Zn after a cross-hatch test. The corrosion measurements were complemented by examining the morphology and structure of the coatings and the modified GO particles. All things considered, the Zn/EP-GO-APTES system shows the best ability to break down organic pollutants, keeping a good anti-corrosive property and adhesion.
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Affiliation(s)
| | | | - Gabriel Katona
- Department of Chemistry and Chemical Engineering, Hungarian Line, Babes-Bolyai University, Faculty of Chemistry and Chemical Engineering 11, Arany J. St 400028 Cluj-Napoca Romania
| | - Gabriella Szabó
- Department of Chemistry and Chemical Engineering, Hungarian Line, Babes-Bolyai University, Faculty of Chemistry and Chemical Engineering 11, Arany J. St 400028 Cluj-Napoca Romania
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Ovari TR, Szőke ÁF, Katona G, Szabó GS, Muresan LM. Temporary Anti-Corrosive Double Layer on Zinc Substrate Based on Chitosan Hydrogel and Epoxy Resin. Gels 2023; 9:gels9050361. [PMID: 37232953 DOI: 10.3390/gels9050361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/13/2023] [Accepted: 04/20/2023] [Indexed: 05/27/2023] Open
Abstract
In practice, metal structures are frequently transported or stored before being used. Even in such circumstances, the corrosion process caused by environmental factors (moisture, salty air, etc.) can occur quite easily. To avoid this, metal surfaces can be protected with temporary coatings. The objective of this research was to develop coatings that exhibit effective protective characteristics while also allowing for easy removal, if required. Novel, chitosan/epoxy double layers were prepared on zinc by dip-coating to obtain temporary tailor-made and peelable-on-demand, anti-corrosive coatings. Chitosan hydrogel fulfills the role of a primer that acts as an intermediary between the zinc substrate and the epoxy film to obtain better adhesion and specialization. The resulting coatings were characterized using electrochemical impedance spectroscopy, contact angle measurements, Raman spectroscopy, and scanning electron microscopy. The impedance of the bare zinc was increased by three orders of magnitude when the protective coatings were applied, proving efficient anti-corrosive protection. The chitosan sublayer improved the adhesion of the protective epoxy coating. The structural integrity and absolute impedance of the protective layers were conserved in both basic and neutral environments. However, after fulfilling its lifespan, the chitosan/epoxy double-layered coating could be removed after treatment with a mild acid without damaging the substrate. This was because of the hydrophilic properties of the epoxy layer, as well as the tendency of chitosan to swell in acidic conditions.
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Affiliation(s)
- Tamara-Rita Ovari
- Department of Chemical Engineering, Research Center in Electrochemistry and Non-Conventional Materials, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, RO-400028 Cluj-Napoca, Romania
| | - Árpád Ferenc Szőke
- Department of Chemistry and Chemical Engineering of the Hungarian Line, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, RO-400028 Cluj-Napoca, Romania
| | - Gabriel Katona
- Department of Chemistry and Chemical Engineering of the Hungarian Line, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, RO-400028 Cluj-Napoca, Romania
| | - Gabriella Stefánia Szabó
- Department of Chemistry and Chemical Engineering of the Hungarian Line, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, RO-400028 Cluj-Napoca, Romania
| | - Liana Maria Muresan
- Department of Chemical Engineering, Research Center in Electrochemistry and Non-Conventional Materials, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, RO-400028 Cluj-Napoca, Romania
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3
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Corrosion behaviour of zinc coated with composite silica layers incorporating poly(amidoamine)-modified graphene oxide. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05358-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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4
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Mahanta S, Balaji U, Pradhan S, Suman S, Sankaran K. Towards High-quality graphite oxide from graphite – Systemization of the balance in oxidative and mechanical forces for yield enhancement. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Investigation of newly synthesized environmentally friendly graphene oxide multilayer nanocoating for enhancing the protection performance of steel structure. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.07.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Hybrid composites of epoxidized polyurethane and novolac resins cured by poly(amidoamine) dendrimer-grafted graphene oxide. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03785-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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7
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AhadiParsa M, Dehghani A, Ramezanzadeh M, Ramezanzadeh B. Rising of MXenes: Novel 2D-functionalized nanomaterials as a new milestone in corrosion science - a critical review. Adv Colloid Interface Sci 2022; 307:102730. [PMID: 35868175 DOI: 10.1016/j.cis.2022.102730] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/29/2022] [Accepted: 07/03/2022] [Indexed: 11/01/2022]
Abstract
Corrosion is a natural process between a metal and its environment that can gradually cause catastrophic damage to the metal equipment, which would have economic implications. Consequently, several protective methods have been utilized to prevent metals from severe degradation. Organic polymeric coatings have been widely used as the most convenient and cost-effective method to boost metals' anti-corrosion properties. Nonetheless, these coatings have a significant amount of solvent, resulting in shrinkage and micro defects in the films during the curing process. Many studies have verified that transition metal carbides/nitrides (MXenes) can form a "labyrinth effect" in the polymeric coatings due to their "nano-barrier effect". Furthermore, based on their sheet-like structures, they can considerably cover the surface defects of the polymeric films. Therefore, the penetration of corrosive elements can be substantially curbed. It is the first review that specifically focused on the new family of 2D nanomaterials, i.e., MXenes, and discussed their applications in corrosion protection systems. The MXenes' pros and cons in the polymeric matrixes as nanofillers will be clarified. Moreover, the synthesis and functionalization methods of the MXenes, their applications, and corrosion protection mechanism will be explored. Subsequently, the MXenes' superiority over other 2D nanomaterials will be highlighted while their future perspectives and industrial applications will be predicted.
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Affiliation(s)
- Mobina AhadiParsa
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran
| | - Ali Dehghani
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran; Department of Chemical Engineering, Faculty of Engineering, Golestan University, Aliabad Katoul, Iran
| | - Mohammad Ramezanzadeh
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran
| | - Bahram Ramezanzadeh
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran.
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8
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Zhang C, Li W, Liu C, Zhang C, Cao L, Kong D, Wang W, Chen S. Effect of covalent organic framework modified graphene oxide on anticorrosion and self-healing properties of epoxy resin coatings. J Colloid Interface Sci 2022; 608:1025-1039. [PMID: 34785451 DOI: 10.1016/j.jcis.2021.10.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/04/2021] [Accepted: 10/05/2021] [Indexed: 02/06/2023]
Abstract
Graphene oxide (GO) can enhance the corrosion resistance of epoxy coating, but there are problems such as poor filler dispersion and mechanical damage that will reduce the coating corrosion resistance. To resolve these problems, here, we used a facile and green liquid-phase synthetic strategy to grow covalent organic framework (COF) on GO sheets with 1,3,5-Triformylphloroglucinol and p-phenylenediamine as monomers for the COF synthesis. The COF could not only improve the compatibility of GO with epoxy coating, but also act as a nanocontainer for loading corrosion inhibitors. Electrochemical impedance spectroscopy showed that the low-frequency impedance of GO/COF-2% coating immersed in 3.5 wt% NaCl solution for 60 days was 8.58 × 108 Ω cm2. This was one order of magnitude higher than that of GO-2%, showing excellent corrosion resistance. Then, corrosion inhibitor of benzotriazole (BTA) was loaded into GO/COF, where the adsorption and release of BTA was controlled by environmental pH values. Results proved that the GO/COF@BTA-2% reinforced epoxy coating had superior corrosion resistance as well as self-healing ability because of the good compatibility, greater crosslinking density and controllable release of BTA.
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Affiliation(s)
- Chenyang Zhang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Wen Li
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Cong Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Chunfeng Zhang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Lin Cao
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Debao Kong
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Wei Wang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Shougang Chen
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China.
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9
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A novel silk fibroin-graphene oxide hybrid for reinforcing corrosion protection performance of waterborne epoxy coating. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127959] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Kim K, Kang DW, Yun CY, Choi Y, Lee JW. Fundamental reaction kinetics of high-pressure reductive amination of polyalkylene glycol. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Phosphating Modification with Metal Ions of Carbon Steel Surface to Improve the Influence of Anticorrosion Properties. TECHNOLOGIES 2021. [DOI: 10.3390/technologies10010003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The purpose of this research is to investigate the influence of the phosphatizing process with Ni2+, Ce3+, and Ti2+ ions on the properties of the coating to obtain better corrosion protection of the metal. Steel corrosion occurs through physicochemical interaction between the metal and its surrounding environment. This leads to a change in the metal’s physical, mechanical, and optical properties that can cause damage to the functionality of the metal, which in turn may result in accidents or other malfunctions. Carbon steel grade has limited resistance to corrosion, depending on the carbon content and alloying element, the microstructure, and the surrounding environment of the material. This paper present tests that have been carried out on some of the physicochemical properties of protective epoxy and polyurethane coating on carbon steel grade. Coatings represent one of the methods available to protect metal surfaces from corrosion. Coating properties such as thickness, hardness, and adhesion were investigated. The same properties were tested by exposing the sample plates to corrosive conditions of the humid chamber and seawater. Their anticorrosion properties were explored by electrochemical impedance spectroscopy (EIS) techniques under immersion in 3.5 wt.% NaCl solutions as a corrosive medium. Part of the samples prior to application of the coatingwere modified with a phosphate solution containing metal ions: Ni2+, Ce3+, and Ti2+ to further investigate the effects of phosphatization on the properties of the coating. After exposure of the plates to the salt and moist chamber conditions, no traces of corrosion products, cracking or peeling of the coating were found on the surfaces. The adhesion properties were tested by the pull-off adhesion test. It was found that metal/polymer adhesion was satisfied according to EN ISO 4624:2016 and had the same value for all samples. However, a detailed EIS analysis showed a higher resistance of phosphate samples with Ce3+ ions than samples that were phosphated with Ni2+ and Ti2+ ions and those that did not have a sparingly soluble phosphate salt layer.
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12
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Zare Y, Rhee KY. Advanced model for conductivity estimation of graphene-based samples considering interphase effect, tunneling mechanism, and filler wettability. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.12.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Li Z, Yan S, He Y, Zhang C, Li H, Xie P, He Z, Fan Y. Synthesis of graphene oxide functionalized by polyaniline coated alpha-zirconium phosphate to enhance corrosion resistance of waterborne epoxy coating. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Fadl A, Sadeek S, Magdy L, Abdou M, El-Shiwiniy W. Multi-functional epoxy composite coating incorporating mixed Cu(II) and Zr(IV) complexes of metformin and 2,2\-bipyridine as intensive network cross-linkers exhibiting anti-corrosion, self-healing and chemical-resistance performances for steel petroleum platforms. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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15
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Marhamati F, Mahdavian M, Bazgir S. Corrosion mitigation of mild steel in hydrochloric acid solution using grape seed extract. Sci Rep 2021; 11:18374. [PMID: 34526622 PMCID: PMC8443659 DOI: 10.1038/s41598-021-97944-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 08/25/2021] [Indexed: 11/21/2022] Open
Abstract
Plant extracts have gained a lot of attention due to their ecofriendly nature for corrosion inhibition. In this study, we examined the inhibition performance of grape seed extract as an eco-environmental inhibitor for mild steel in hydrochloric acid medium. Electrochemical impedance spectroscopy, potentiodynamic polarization, and electrochemical noise techniques were employed to study mild steel's electrochemical behavior in the hydrochloric acid solutions containing grape seed extract. Results depicted that grape seed extract could successfully inhibit the corrosion of mild steel. Besides, water droplet contact angle, field-emission scanning electron microscopy coupled with energy dispersive spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy were utilized to study the surface of mild steel specimens after dipping in acidic solutions. Electrochemical impedance results showed a corrosion efficiency of about 88% in 300 ppm of grape seed extract. Also, results revealed more compact corrosion products with improved integrity in the presence of grape seed, which confirmed electrochemical test results.
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Affiliation(s)
- Fatemeh Marhamati
- Department of Polymer Engineering Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Mahdavian
- Surface Coating and Corrosion Department, Institute for Color Science and Technology, Tehran, Iran.
| | - Saeed Bazgir
- Department of Polymer Engineering Science and Research Branch, Islamic Azad University, Tehran, Iran
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16
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Zhang F, Liu W, Liu C, Wang S, Shi H, Liang L, Pi K. Rational design of non-hazardous phytic acid-functionalized graphene oxide for polymer nanocomposites toward reinforcing corrosion resistance performance applications. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126390] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Amini M, Naderi R, Mahdavian M, Badiei A. Release of lanthanum cations loaded into piperazine-modified SBA-15 to inhibit the mild steel corrosion. MICROPOROUS AND MESOPOROUS MATERIALS 2021; 315:110908. [DOI: 10.1016/j.micromeso.2021.110908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
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18
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Corrosion properties of organic polymer coating reinforced two-dimensional nitride nanostructures: a comprehensive review. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02434-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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19
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Liu X, Jie H, Liu R, Liu Y, Li T, Lyu K. Research on the Preparation and Anticorrosion Properties of EP/CeO 2-GO Nanocomposite Coating. Polymers (Basel) 2021; 13:polym13020183. [PMID: 33419213 PMCID: PMC7825610 DOI: 10.3390/polym13020183] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/30/2020] [Accepted: 12/30/2020] [Indexed: 11/16/2022] Open
Abstract
Due to its special two-dimensional lamellar structure, graphene possesses an excellent shielding effect, hydrophobic characteristics and large specific surface area, which can effectively isolate the internal structure from the external corrosive media. However, lamellar graphene is easy to stack and agglomerate, which limits its anti-corrosion performance. In this paper, cerium oxide-graphene oxide (CeO2-GO) nanocomposites were prepared by a hydrothermal synthesis method. Field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM) were applied for microstructure examination, showing that a large number of nanoscale granular cerium oxide grew on the lamellar graphene oxide surface, which improved the dispersion performance of graphene inside the matrix. The anti-corrosion properties of the coating were analyzed and illustrated by open circuit potential (OCP), frequency response analysis, Tafel curve and Mott-Schottky curve. The results indicated that the CeO2-GO (4:1) nanocomposite not only eliminated the agglomeration of graphene to some extent, but also prepared the graphene epoxy coating with good dispersion, which further promoted its anti-corrosion performance. The paper proposed a feasible solution for GO dispersion in cement-based materials and lays a solid theoretical foundation for the engineering application of cerium oxide-graphene oxide modified anticorrosive coating.
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Affiliation(s)
- Xiaoyan Liu
- College of Mechanics and Materials, Hohai University, Nanjing 210000, China; (H.J.); (R.L.); (Y.L.); (T.L.)
- Correspondence: (X.L.); (K.L.)
| | - Handuo Jie
- College of Mechanics and Materials, Hohai University, Nanjing 210000, China; (H.J.); (R.L.); (Y.L.); (T.L.)
| | - Ruidan Liu
- College of Mechanics and Materials, Hohai University, Nanjing 210000, China; (H.J.); (R.L.); (Y.L.); (T.L.)
| | - Yanqi Liu
- College of Mechanics and Materials, Hohai University, Nanjing 210000, China; (H.J.); (R.L.); (Y.L.); (T.L.)
| | - Tianyu Li
- College of Mechanics and Materials, Hohai University, Nanjing 210000, China; (H.J.); (R.L.); (Y.L.); (T.L.)
| | - Kai Lyu
- College of Civil and Transportation Engineering, Hohai University, Nanjing 210000, China
- Correspondence: (X.L.); (K.L.)
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Abstract
The present review outlines the most recent advance in the field of anticorrosive coatings based on graphene oxide nanostructures as active filler. This carbonaceous material was extensively used in the last few years due to its remarkable assets and proved to have a significant contribution to composite materials. Concerning the graphene-based coatings, the synthesis methods, protective function, anticorrosion mechanism, feasible problems, and some methods to improve the overall properties were highlighted. Regarding the contribution of the nanostructure used to improve the capability of the material, several modification strategies for graphene oxide along with the synergistic effect exhibited when functionalized with other compounds were mainly discussed.
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21
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New effects of TiO2 nanotube/g-C3N4 hybrids on the corrosion protection performance of epoxy coatings. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114214] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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22
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Shi H, Liu W, Xie Y, Yang M, Liu C, Zhang F, Wang S, Liang L, Pi K. Synthesis of carboxymethyl chitosan-functionalized graphene nanomaterial for anticorrosive reinforcement of waterborne epoxy coating. Carbohydr Polym 2020; 252:117249. [PMID: 33183651 DOI: 10.1016/j.carbpol.2020.117249] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/11/2020] [Accepted: 10/12/2020] [Indexed: 02/08/2023]
Abstract
In this study, a carboxymethyl chitosan functionalized graphene (CMCS-rGO) nanomaterial was successfully synthesized in aqueous solution by non-covalent functionalization method. Fourier transform infrared, Raman, ultraviolet visible spectroscopy and thermogravimetric analysis confirmed that carboxymethyl chitosan had been successfully anchored on the surface of graphene. In addition, the CMCS-rGO was used as an anticorrosive nanofiller to be added to waterborne epoxy (EP) coatings to protect steel substrates. The corrosion protection behavior of all coatings was tested by electrochemical workstation, and the results proved that the incorporation of well-dispersed CMCS-rGO nanomaterials could significantly improve the anti-corrosion performance of waterborne epoxy coatings. Furthermore, even after 180 days of immersion, the impedance modulus value of the 0.2 % CMCS-rGO/EP at |Z|f =0.01 Hz was still approximately 2 orders of magnitude higher than that of the EP.
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Affiliation(s)
- Hongyi Shi
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weiqu Liu
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China; Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou 510650, China; CASH GCC (Nanxiong) Research Institute of New Materials Co., Ltd, Nanxiong 512400, China; CAS Engineering Laboratory for Special Fine Chemicals, Guangzhou 510650, China.
| | - Yankun Xie
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China; CASH GCC (Nanxiong) Research Institute of New Materials Co., Ltd, Nanxiong 512400, China
| | - Maiping Yang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China; Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou 510650, China; CASH GCC (Nanxiong) Research Institute of New Materials Co., Ltd, Nanxiong 512400, China
| | - Chunhua Liu
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China; Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou 510650, China; CASH GCC (Nanxiong) Research Institute of New Materials Co., Ltd, Nanxiong 512400, China
| | - Fengyuan Zhang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China; CAS Engineering Laboratory for Special Fine Chemicals, Guangzhou 510650, China
| | - Shuo Wang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China; Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou 510650, China; CASH GCC (Nanxiong) Research Institute of New Materials Co., Ltd, Nanxiong 512400, China
| | - Liyan Liang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China; Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou 510650, China; CASH GCC (Nanxiong) Research Institute of New Materials Co., Ltd, Nanxiong 512400, China; CAS Engineering Laboratory for Special Fine Chemicals, Guangzhou 510650, China.
| | - Ke Pi
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou 510650, China; CASH GCC (Nanxiong) Research Institute of New Materials Co., Ltd, Nanxiong 512400, China; CAS Engineering Laboratory for Special Fine Chemicals, Guangzhou 510650, China
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Rajitha K, Mohana KNS, Mohanan A, Madhusudhana AM. Evaluation of anti-corrosion performance of modified gelatin-graphene oxide nanocomposite dispersed in epoxy coating on mild steel in saline media. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124341] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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