In situ electrochemical synthesis of polyaniline/f-MWCNT nanocomposite coatings on mild steel for corrosion protection in 3.5% NaCl solution

Kumar, A. Madhan; Gasem, Zuhair M.

doi:10.1016/j.porgcoat.2014.07.009

Cited by 129 publications

(23 citation statements)

References 26 publications

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“…[ 77,83 ] The anticorrosion performance of redox‐responsive fluorinated coatings was compared with previously reported anticorrosion coatings (Table S2, Supporting Information). [ 84–91 ] j corr of PL and PH coatings is lower than for the majority of the coatings reported in the literature. A polyaniline coating embedding carbon nanotubes showed a lower j corr .…”

Section: Resultsmentioning

confidence: 58%

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Adaptive Coatings with Anticorrosion and Antibiofouling Properties

Yimyai

Thiramanas

Phakkeeree

et al. 2021

Adv Funct Materials

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Biofouling on surfaces immersed in aquatic environment induces catastrophic corrosion of metallic materials in petrochemical infrastructures, maritime facilities, and power plants. To combat the synergistic effect of biofouling and corrosion on the deterioration of metallic materials, smart coatings possessing a dual function of antibiofouling and anticorrosion properties are needed. Herein, redox‐responsive copolymer conjugates are synthesized and employed as coatings with the dual function of biofouling and corrosion mitigation. The dual function of copolymers is attributed to fluorinated units and the corrosion inhibitor 2‐mercaptobenzothiazole (MBT) conjugated via disulfide linkages. Indeed, the disulfide linkages can be cleaved in a reducing environment, yielding controlled release of the corrosion inhibitor MBT during corrosion process. The antibiofouling action against protein adsorption and algal attachment is enabled by cooperation of the repellent characteristic of fluorinated moieties and the biocidal effect of conjugated MBT.

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Section: Resultsmentioning

confidence: 58%

“…A polyaniline coating embedding carbon nanotubes showed a lower j corr . [ 88 ] However, its practical application is limited because polyaniline and carbon nanotubes are highly colored and polyaniline is a very brittle material.…”

Section: Resultsmentioning

confidence: 99%

Adaptive Coatings with Anticorrosion and Antibiofouling Properties

Yimyai

Thiramanas

Phakkeeree

et al. 2021

Adv Funct Materials

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“…Nanotubes (CNTs) have outstanding mechanical characteristics, good electronic conductivity, nanometer size and highly accessible surface area. Some researchers prepared CNT/PAni composites which exhibited improved anticorrosion behavior than pure PAni coatings on steel [146][147][148][149]. It can be explained that the coating containing nanotubes have higher anticorrosion behavior because the higher surface area of the nanotubes decreases the porosity of the PAni and forms a more resistant passive film on the steel under the composite layer.…”

Section: Nanocomposite Pani Coatingsmentioning

confidence: 99%

“…Hermas et al [147] reported that PAni-multiwalled carbon nanotube (PAni-mCNTs) composites had improved morphological structure, electrical properties, thermal stability and anticorrosion behaviour on steel in H 2 SO 4 solution. Kumar and Gasem [148] prepared a kind of functional PAni/f-mCNT composite, which showed uniform dispersion of CNTs in PAni matrix, enhanced mechanical properties, excellent hydrophobic nature and electrochemical corrosion behavior on mild steel in a corrosive environment. Kalendová et al [149] found that CNTs can partially replace Zn dust in steel coating whilst increasing the coating's anticorrosion efficiency.…”

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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“…However, the interaction of functionalized CNTs with polymer matrix is still imprecise phenomenon. Mekki [17,18]. In this way, the intention of the present study is to evaluate the effect of functionalization of CNTs on the overall performance of polymer nanocomposite for surface protective coatings.…”

Section: Accepted Manuscriptmentioning

confidence: 99%