Preparation of polyaniline/graphene composites with excellent anti-corrosion properties and their application in waterborne polyurethane anticorrosive coatings

Cai, Kewen; Zuo, Shixiang; Luo, Shipin; Yao, Chao; Liu, Wenjie; Ma, Jianfeng; Mao, Huihui; Li, Zhongyu

doi:10.1039/c6ra19618g

Cited by 130 publications

(71 citation statements)

References 27 publications

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“…It was more environmentally friendly than traditional heavy metal and their oxide coatings. Recently, graphene has been reported to be an excellent anticorrosion material due to its unique characteristics of chemical inertness, excellent thermal and chemical stability, remarkable flexibility and impermeable to molecules [386][387][388]. Jafari et al [386] electrochemically synthesized adherent PANI/graphene nanocomposite coatings on Cu substrates.…”

Section: Corrosion Protectionmentioning

confidence: 99%

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

et al. 2018

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Section: Corrosion Protectionmentioning

confidence: 99%

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

et al. 2018

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“…The corrosion rate (C.R.) can be obtained by substituting the corrosion current into the following equation [2]:…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…The charge transfer resistance (R ct ) was obtained from the semicircular diameter in the real part of the Nyquist plot. The R ct value was substituted into the following equation to obtain the protection efficiency [2]:…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…All of the above methods of corrosion protection are involved in one of the following ways: (i) in cathodic protection, an electron is donated to the steel from a sacrificial material; (ii) in anodic protection, an electron is withdrawn from the steel; or (iii) the steel surface is sealed off from corrosive attacks by a surface layer of another material. Cathodic protection of protective coating is widely used [2][3][4]. On the other hand, organic and polymeric coatings have been also employed to protect metals against corrosion.…”

Section: Introductionmentioning

confidence: 99%

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Anti-Corrosion Characteristics of Electrodeposited Self-Doped Polyaniline Films on Mild Steel in Low Acidity

Wang

Lin

et al. 2018

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Without the addition of inorganic acids, 2,5-Diaminobenzenesulfonic acid (DABSA) molecules form an acid environment, and are then electrochemically copolymerized with AN monomers to generate a self-doped polyaniline (SPAN) film on mild steel substrates. These SPAN deposition films are employed to test the protection efficiency for mild steel in a corrosion environment of HCl and NaCl, respectively. Electrochemical impedance spectroscopy (EIS) and polarization were used to determine the charge transfer resistance (R ct ) and corrosion current (I corr ), respectively. The above two parameters R ct and I corr are combined to evaluate the protection efficiency of SPAN film on mild steel. Experimental results show that the SPAN thin film with the AN/DABSA ratio of 8.8 has the optimal corrosion resistance in 1 M HCl and 1 M NaCl aqueous solutions, respectively.

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“…Therefore, chemical modification of the surface of graphene is necessary to satisfy the requirements for a particular application. A few studies have reported the application of functionalized graphene in anti-corrosion coatings [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of Graphene Oxide/ZSM-5 Hybrid on Corrosion Resistance of Waterborne Epoxy Coating

et al. 2018

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Abstract:In this study, the preparation of modified graphene oxide (GO) synergistic structure (ZSM-5-NH-GO) and the effect of this structure on the corrosion performance of epoxy coatings were investigated. The structural and morphological properties of ZSM-5-NH-GO were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The corrosion performances were studied by electrochemical impedance spectroscopy (EIS) and salt spray tests. The EIS results showed that the corrosion resistance of steel substrate was considerably improved by ZSM-5-NH-GO. The salt spray tests demonstrated that the ZSM-5-NH-GO coating provided strong corrosion performance for steel substrate. The mechanical properties of the epoxy-composite coatings containing ZSM-5-NH-GO were studied by adhesion tests. The above results indicated that the composite coating containing 0.7 wt % ZSM-5-NH-GO composite possessed most excellent anti-corrosion performance compared with other epoxy coatings.

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Preparation of polyaniline/graphene composites with excellent anti-corrosion properties and their application in waterborne polyurethane anticorrosive coatings

Abstract: Polyaniline, a novel conductive polymer, has been widely used as an anti-corrosive filler.

Cited by 130 publications

References 27 publications

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

Anti-Corrosion Characteristics of Electrodeposited Self-Doped Polyaniline Films on Mild Steel in Low Acidity

Effect of Graphene Oxide/ZSM-5 Hybrid on Corrosion Resistance of Waterborne Epoxy Coating

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