Enhanced Charge Transport and Corrosion Protection Properties of Polyaniline–Carbon Nanotube Composite Coatings on Mild Steel

Rajyalakshmi, T.; Pasha, Apsar; Khasim, Syed; Lakshmi, Mohana; Murugendrappa, M. V.; Badi, N.

doi:10.1007/s11664-019-07783-6

Cited by 22 publications

(4 citation statements)

References 42 publications

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“…Because of their solubility concern, they are mostly used as anticorrosive coating formulations. Literature study indicates that composites derived from polypyrrole (PPy) [82,83], polyaniline (PANI) [84][85][86][87], polyurethane (PU) [88], etc. and CNTs are used as anticorrosive formulations.…”

Section: Organics-organics Compositesmentioning

confidence: 99%

Nanotechnology in the service of corrosion science: considering graphene and derivatives as examples

Verma

Quraishi

2022

Corrosion Engineering, Science and Technology

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Nanotechnology is a branch of science and engineering that involves the synthesis, modification, characterisation and application of nanoscale materials in diverse fields. They provide excellent surface coverage and are successfully used as corrosion inhibitors. However, most of the nanomaterials are not effective and require special treatments or modifications for proper anticorrosive activities. The present review article features the current approaches and practices that have been adopted to enhance the anticorrosive performance of nanoscale materials. One of the most growing interests in this direction is the use of covalently and non-covalently functionalised nanomaterials. The functionalised nanomaterials show remarkable improvement in corrosion protection performance. The covalently functionalised nanomaterials show better dispersibility and thereby better efficiency in aqueous electrolytes. In the anticorrosive formulations, nanomaterials avoid the penetration of corrosive species and thereby increase durability and corrosion inhibition. The nanomaterials in anticorrosive formulations also enhance weathering resistance, UV resistance, mechanical performance, thermal stability and hydrophobic property.

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Section: Organics-organics Compositesmentioning

confidence: 99%

Nanotechnology in the service of corrosion science: considering graphene and derivatives as examples

Verma

Quraishi

2022

Corrosion Engineering, Science and Technology

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“…Inhibition effect of the PANI-CNT based nanocomposites has also been investigated in other studies. [87] Similarly corrosion inhibition property of various other CNT based nanocomposites such as graphitic filamentous nanocarbon-aligned carbon thin layer (GFN-ACTL) for copper in simulated sea water, [88] conductive polyurethane-MWCNTs composites for stainless steel in 3% NaCl, [89] Hydroxyapatite/multi-walled CNT composite for 316 stainless steel in simulated body fluid (SBF), [90] Ag substituted hydroxyapatite/functionalized multi-wall CNT nanocomposite for 316L stainless steel in SBF, [91] Poly(o-phenylenediamine)@multi-walled CNTs nanocomposites for Steel in 3.5% wt.% NaCl, [92] nickel/multi-walled CNTs composite for mild steel in 3.5% NaCl, [93] CNTs and zincrich epoxy primers for carbon steel in simulated concrete pore (SCP) solutions in the presence of chloride ions, [94] Semiconductor CdS/multi-walled CNT quantum dots (CdS/MWCNTs) for Zinc plate in 3.5% NaCl, 1 M HCl and 1 M KOH, [95] TiO 2 coated multi-wall carbon nanotube (MWCNTs)/bis-[triethoxysilylpropyl] tetrasulfide (BTESPT/TiO 2 /MWCNTs), [96] 4,5-diphenylimidazole-functionalized CNTs for Nickel alloy in sulfuric acid [97] and poly(3-aminobenzoic acid) @ MWCNTs nanocomposite for copper in 3.5% NaCl solution. [98] Table 1 represents the collection of some major reports on CNTs composites as anticorrosive coating.…”

Section: Cnts As Corrosion Inhibitorsmentioning

confidence: 99%

Recent advancements in corrosion inhibitor systems through carbon allotropes: Past, present, and future

et al. 2021

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Nano-sized carbon allotropes, particularly graphene (G), graphene oxide (GO), single and multi-walled carbon nanotubes (CNTs, SWCNTs, and MWCNTs) and their chemically modified derivatives are widely used in anticorrosive coating formulations. Generally, carbon allotropes acquire nanofiller property and high hydrophobicity which make them ideal anticorrosive materials. Along with various advantages, using carbon allotropes as anticorrosive materials are connected with some specific challenges including un-controlled dispersion in polymer matrixes. Chemical functionalization using covalent and non-covalent methods are widely used to enhance their dispersibility. Magnetic stirring, ultrasonic mixing, ball milling and shear emulsification are also widely used to enhance their dispersibility. Present review article describes the covalent and non-covalent functionalization of G, GO, and CNTs and their application as corrosion inhibitors in various coating formulations and aqueous phase. Chemically modified GO shows remarkable solubility/dispersibility in the aqueous electrolytes. Advantages and challenges using these materials as corrosion inhibitors have also been discussed hereincorrosion inhibitors, nanocomposites, nanotechnology, polymer matrixes and green corrosion inhibitors 1This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…In particular, the helical arrangement of the honeycomb lattice makes CNTs behave both like metal as well as a semiconductor, and an increased width leads to decrease in the bandgap. [18][19][20] The CNTs have great research interest due to their exquisite thermal stability. Their unique mechanical, thermal, and electrical properties have garnered attention for developing several types of multifunctional composite materials.…”

Section: Introductionmentioning

confidence: 99%

Sub‐micron calcium carbonate isolated carbon nanotubes/polyethylene composites with controllable electrical conductivity

Shen

Zhu

2021

J of Applied Polymer Sci

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The dispersion and distribution of carbon nanotubes (CNTs) on/in the polymer composites are greatly affected by the molding technology progress, which results in different electrical conductivity. The uncontrollable electrical conductivity has limited the application of conductive polymer composites, for example, sensor components. In this work, to enhance the dispersion stability of CNTs in polyethylene (PE) matrix, sub-micron calcium carbonate isolated CNTs (smCaCO 3 @CNTs) were selected based on the fact that smCaCO 3 is much easier to disperse in polymer in comparison with CNTs. This good distribution of CNTs in smCaCO 3 @CNTs/PE was characterized by transmission electron microscope and Raman mapping. The electrical performance test results show that when 0.5 wt% of CNTs filled in smCaCO 3 @CNTs/PE, the percolation network begins to form; when CNTs filled increases to 1-2 wt%, the surface resistance of smCaCO 3 @CNTs/PE ranges from 10 6 to 10 9 Ω almost not affected by the molding technology process (compression molding or injection molding). The possible reason is that the isolated CNTs by smCaCO 3 in polymer matrix are favorable for the formation of the stable conductive network.

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Enhanced Charge Transport and Corrosion Protection Properties of Polyaniline–Carbon Nanotube Composite Coatings on Mild Steel

Cited by 22 publications

References 42 publications

Nanotechnology in the service of corrosion science: considering graphene and derivatives as examples

Nanotechnology in the service of corrosion science: considering graphene and derivatives as examples

Recent advancements in corrosion inhibitor systems through carbon allotropes: Past, present, and future

Sub‐micron calcium carbonate isolated carbon nanotubes/polyethylene composites with controllable electrical conductivity

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