A novel water-based epoxy coating using self-doped polyaniline–clay synthesized under supercritical CO2 condition for the protection of carbon steel against corrosion

Mousavinejad, Tahereh; Bagherzadeh, Mohammad Reza; Akbarinezhad, E.; Ahmadi, Majid; Guinel, Maxime J.-F.

doi:10.1016/j.porgcoat.2014.11.009

Cited by 26 publications

(9 citation statements)

References 55 publications

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“…It has been reported that PANI/montmorillonite composites show better anticorrosive effects, so we were concerned with whether the intercalated PANI–kaolinite nanocomposite would show similar behavior. To investigate the anticorrosive effects of the epoxy resin/intercalated PANI–kaolinite nanocomposite coating on an A3 steel plate under a seawater environment, a series of anticorrosion tests in simulated seawater were performed, and the results are recorded in Figure S2 (see Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Intercalated polyaniline–kaolinite nanocomposite prepared viain situmechanochemical synthesis

Zheng

Feng

Zhou

et al. 2016

J of Applied Polymer Sci

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The in situ polymerization of aniline monomers within kaolinite interlayers easily led to an intercalated polyaniline (PANI)-kaolinite nanocomposite through a facile mechanochemical method. The X-ray diffraction results demonstrate that PANI was successfully intercalated in the interlayers of kaolinite, which was lightened by an increased basal spacing from 7.24 to 14.67 Å of kaolinite in the as-synthesized nanocomposite, and the characterization results from Fourier transform infrared spectrometry, scanning electron microscopy, transmission electron microscopy, and atomic force microscopy further confirm this conclusion. The thermal stability of PANI was improved significantly when PANI was intercalated into kaolinite to form the nanocomposite; this was proven by thermogravimetric analysis. Moreover, a panel experiment was carried out under a simulated marine environment to evaluate the anticorrosive effect of the as-prepared product, and the results show that the epoxy resin/intercalated PANI-kaolinite nanocomposite coating had a better anticorrosive effect than that of the neat epoxy resin coating.

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Section: Resultsmentioning

confidence: 99%

Intercalated polyaniline–kaolinite nanocomposite prepared viain situmechanochemical synthesis

Zheng

Feng

Zhou

et al. 2016

J of Applied Polymer Sci

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“…Akbarinezhad et al [143] found that polyaniline-Cloisite 30B nanoclay could modify zinc rich epoxy coatings, inhibit zinc powder consumption and extend its cathodic protection period via improving its initial barrier effects. Mousavinejad et al [144] found that water-based epoxy resin mixed with a polyaniline-Cloisite 30B nanoclay showed superior long-term stability, high adhesion and enhanced corrosion resistance. Navarchian et al [145] found that the corrosion protection efficiency of a steel panel coated with epoxy/PAni/OMMT (alkyl ammonium ions in organo-modified montmorillonite) was much higher than that of epoxy/PAni/MMT (Na + in natural clay).…”

Section: Nanocomposite Pani Coatingsmentioning

confidence: 99%

A Review on Conducting Polymers and Nanopolymer Composite Coatings for Steel Corrosion Protection

Zhang

2019

Coatings

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Corrosion is the principal reason for causing degradation of steel material properties, and coating is one of the most popular and effective ways to protect steel from corrosion. There are many kinds of coatings with different constituents, mechanisms and effectiveness. This paper presents a comprehensive review on the development of coating technology including traditional coatings, hydrophobic coatings, conducting polymer coatings and nanopolymer composite coatings. In particular, conducting polymers and nanopolymer composite coatings are reviewed in detail, which are the most popular and promising coatings. The advantages and limitations of each coating method as well as the influencing factors on corrosion protection are elaborated. Finally, the future research and applications are proposed.Coatings 2019, 9, 807 2 of 22 fluorocarbon coating, silicone coating, polyurethane coating and zinc-rich coating, provide corrosion protection by their barrier effect to ionic species, oxygen and water transport, which diminishes the corrosion rate [5][6][7], but their shortcomings are still significant, such as low impact strength, poor weatherability, poor bond strength and poor durability [8]. Almost all prevailing superhydrophobic coatings can adopt nanotechnology. Silica nanoparticles [9][10][11], carbon nanotubes [12,13], titanium oxide nanotubes [14][15][16][17], nanopolymers [18][19][20] and nanosilane [21][22][23] have been widely used for fabricating superhydrophobic coatings. Procedures such as the dip coating technique, electroless plating, sol-gel process and electro deposition are adopted to fabricate the superhydrophobic coatings. The water contact angles of the superhydrophobic coatings can reach 145-165 • C [9-23]. There is also some literature about using soft lithography method based on a polydimethylsiloxane (PDMS) template to prepare nanostructured superhydrophobic coatings [24,25]. Although significant progress has been achieved regarding the synthesis of superhydrophobic coatings and their anticorrosion properties for steel, the majority superhydrophobic coatings have been studied only in laboratory till now, and there are still many obstacles before they could be widely used in industry. The prevailing fabrications are complicated, costly and not suitable for on-site use. Many efforts should be made to develop an optimum superhydrophobic coating with excellent water repellency, long service life, good adhesion performance, low cost, easy fabrication and convenience in site spraying and curing.In recent years, conducting polymer coatings and nanopolymer composite coatings have been widely used in many projects. Many studies on nanopolymer composite coatings, conducting polymers and their combinations were conducted with a good deal of progress. Some new nontoxic corrosion protection materials with the properties of high efficiency and smart corrosion protection, long effective period and easy construction have been developed.Different coatings have deferent deposition mechanisms. At present, the prev...

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“…Corrosion can decrease load carrying capacity either by generally reducing its size or by pitting (Gurrappa and Malakondaiah, 2005), both of which can lead to failure. To reduce the risk caused by failed fastener, an effectively protective coating shall be applied on steel fastener (Canakci et al, 2013;Mouanga et al, 2013;Mousavinejad et al, 2015;Zavareh et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Corrosion resistance of composite coating used for fastener protection

Lin

et al. 2019

ACMM

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Purpose The purpose of this paper is to examine the performance of a fastener composite coating system, sherardized (SD) coating/zinc-aluminum (ZA) coating whether it has good performance in marine environment. Design/methodology/approach In this paper, SD coating was fabricated on fastener surface by solid-diffusion method. ZA coating was fabricated by thermal sintering method. Corrosion behaviours of the composite coating were investigated with potentiodynamic polarization curves, open circuit potential and electrochemical impedance spectroscopy methods. Findings Neutral salt spray (NSS) and deep sea exposure tests revealed that the composite coating had excellent corrosion resistance. Polarization curve tests showed that corrosion current density of the sample with composite coating was significantly decreased, indicating an effective corrosion protection of the composite coating. OCP measurement of the sample in NaCl solution demonstrated that the composite coating had the best cathodic protection effect. The good corrosion resistance of the composite coating was obtained by the synergy of SD and ZA coating. Practical implications SD/ZA coating can be used in marine environment to prolong the life of carbon steel fastener. Social implications SD/ZA composite coating can reduce the risk and accident caused by failed fastener, avoid huge economic losses. Originality/value A new kind of composite coating was explored to protect the carbon steel fastener in marine environment. And the composite coating has the long-term anti-corrosion performance both in simulated and marine environment test.

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A novel water-based epoxy coating using self-doped polyaniline–clay synthesized under supercritical CO2 condition for the protection of carbon steel against corrosion

Cited by 26 publications

References 55 publications

Intercalated polyaniline–kaolinite nanocomposite prepared viain situmechanochemical synthesis

Intercalated polyaniline–kaolinite nanocomposite prepared viain situmechanochemical synthesis

A Review on Conducting Polymers and Nanopolymer Composite Coatings for Steel Corrosion Protection

Corrosion resistance of composite coating used for fastener protection

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