Incorporation of electroconductive carbon fibers to achieve enhanced anti-corrosion performance of zinc rich coatings

Ge, Tianhao; Zhao, Wenjie; Wu, Xuedong; Lan, Xijian; Zhang, Yonggang; Qiang, Yujie; He, Yanlin

doi:10.1016/j.jcis.2020.02.002

Cited by 60 publications

(16 citation statements)

References 39 publications

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“…As an inorganic non-metallic material, carbon fiber remained unaffected by oxygen in the wastewater and avoided falling off under the effect of ions in the solution on one hand; and served as an anti-corrosion film and provided fine abrasion resistance and hardness on the other hand, making metal protection less vulnerable to degradation from abrasion and falling of solid particles. Ge et al (2020) added carbon fiber packing into zinc-rich epoxy coating to increase its electrical conductivity, and found that this coating could protect copper-based material in 3.5% NaCl solution for up to 50 days, much longer than the protection duration by carbon-fiber-free zinc-rich epoxy coating. Liu et al (2016) introduction of 0.5% graphene to the epoxy coating promoted its resistance to corrosion, with the corrosion rate being an order of a magnitude lower than graphene-free coating.…”

Section: Corrosion Resistance Of Carbon-based Composite Materialsmentioning

confidence: 99%

Carbon Nanomaterials: Application and Prospects of Urban and Industrial Wastewater Pollution Treatment Based on Abrasion and Corrosion Resistance

Jia

Yuan

Li³

et al. 2020

Front. Chem.

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Environmental pollution as a result of urban and industrial wastewater has become an increasingly prominent issue. Rivers, lakes, and oceans that have become eutrophicated or polluted by suspended solids and hazardous substances in wastewater have endangered the environment. A root cause of this is the discharge of untreated urban and industrial wastewater into the ecosystem. As a solution to the pollution, wastewater treatment facilities have seen increasingly rapid development. Sewage pumps are designed to transport urban and industrial wastewater containing solid particles or hazardous substances to water treatment centers for purification and treatment. Sewage pumps are of great importance in the entire wastewater treatment system. Sewage in the environment where sewage pumps work usually contains sands, suspended particles, and plenty of saline ions. Flow passage components and sealing elements of the pump become vulnerable to abrasion and chemical corrosion, which further challenges operational stability of the pump. Research has remained focused on how to improve reliability of sewage pumps under severe conditions. Because of advances in materials science, the application of an increasing number of new materials has been witnessed, such as carbon-based composite materials and carbon nanomaterials, thanks to their fine self-lubrication performance, heat resistance, thermal and electrical conductivity, chemical stability, heat and seismic resistance, as well as plasticity. These properties contribute to enormous potential that new carbon-based composite materials and carbon nanomaterials have to offer in terms of corrosion resistance. This paper outlines application scenarios, research progress, and the prospect of new materials in sewage pumps.

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Section: Corrosion Resistance Of Carbon-based Composite Materialsmentioning

confidence: 99%

Carbon Nanomaterials: Application and Prospects of Urban and Industrial Wastewater Pollution Treatment Based on Abrasion and Corrosion Resistance

Jia

Yuan

Li³

et al. 2020

Front. Chem.

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“…They discovered that by adding 10 wt % CNF to the zinc-rich EP coating, the corrosion resistance of copper substrates might be considerably boosted by forming conductive routes in the coating. The adhesion of the coating to the substrate also increased from 3 MPa to about 5 MPa . However, the poor dispersion and low compatibility of the CNF with the polymer matrix, as well as the absence of active corrosion inhibitors, were the main drawbacks of this nanomaterial, resulting in short-term anti-corrosion performance.…”

Section: Introductionmentioning

confidence: 99%

“…The adhesion of the coating to the substrate also increased from 3 MPa to about 5 MPa. 22 However, the poor dispersion and low compatibility of the CNF with the polymer matrix, as well as the absence of active corrosion inhibitors, were the main drawbacks of this nanomaterial, resulting in short-term anti-corrosion performance. One of the most effective ways to address these issues is to modify CNFs with polymers to provide not only functional groups but also enhance their corrosion inhibition properties.…”

Section: Introductionmentioning

confidence: 99%

pH-Sensitive Polydopamine–La (III) Complex Decorated on Carbon Nanofiber toward On-Demand Release Functioning of Epoxy Anti-Corrosion Coating

et al. 2022

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The high aspect ratio and unique thermal and electrical characteristics of carbon nanofiber (CNF) made it an ideal physical barrier against the penetration of corrosive ions. However, the poor compatibility of the CNF with the polymer matrix and the lack of active corrosion inhibitors are the key limitations of this nanomaterial, resulting in short-term anti-corrosion resistance. An intelligent self-healing epoxy (EP) coating, including CNF modified with a polydopamine (PDA)−La 3+ complex, was successfully fabricated to overcome these issues. Electrochemical impedance spectroscopy (EIS) evaluation implied that mild steel (MS) submerged in a 3.5 wt % NaCl solution containing the CNF− PDA−La extract had a total corrosion resistance (R T ) of 3107 Ω cm 2 after 24 h, which is much greater than the MS immersed in the blank solution (1378 Ω cm 2 ). Furthermore, the potentiodynamic polarization analysis indicated a 50% reduction in the corrosion rate (CR) of the MS soaked in the solution containing released PDA and La 3+ inhibitors compared to the blank solution. EIS and salt spray analysis were used to assess the self-healing capabilities of epoxy coatings incorporating modified CNFs. EIS assessment of scratched coatings revealed a 117% improvement in R T of the CNF−PDA−La/EP coating compared to the Blank/EP after 10 h of immersion in the saline solution. This enhancement is due to the intelligent release of PDA and La 3+ inhibitors at the scratch sites, which can mitigate MS corrosion by forming a PDA−Fe complex and the deposition of La(OH) 3 on the MS surface. The salt spray test results also exhibited the CNF−PDA−La/EP coating's superior anti-corrosion capabilities after 20 days. Hence, this research presents a logical approach for developing anti-corrosion coatings with improved nanofiller compatibility and self-healing characteristics.

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“…Carbon fi ber reinforced polymer (CFRP) composites are increasingly used in aerospace structures, wind power apparatus, automotive, marine engineering and others [1][2][3][4] due to a number of advantages. Properties that determine the increasing use of structures made on the basis of CFRP are, above all, high specifi c strength and stiff ness, temperature stability (negligible thermal expansion), chemical and corrosion resistance [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nanofillers on the Mechanical Properties of Vinyl Ester Resin Used as a Carbon Fiber Reinforced Polymer Matrix

Kubit¹,

Bucior²,

Kluz³

et al. 2022

Adv. Sci. Technol. Res. J.

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This article presents the results of research aimed at determining the infl uence of selected nanofi llers of vinyl ester resin on the mechanical properties of the cured resin. The infl uence of the resin with nanofi llers as a matrix on the properties of the unidirectional carbon fi ber reinforced polymer (CFRP) composite was also investigated.Graphite, silicon oxide and titanium dioxide nanopowders were used as resin nanofi llers. Each of the fi llers was considered in two diff erent contents, i.e. 1 wt.% and 2 wt.%. The variants with such nanofi llers content were compared with the unfi lled reference variant. The uniaxial tensile strength tests of the resin samples were carried out, showing the possibility of increasing the strength by 19.35% for the variant 1 wt.% of silica nanopowder content. For CFRP composites, the possibility of increasing the strength in the three-point bending test by 25.57% due to the use of a matrix reinforced with graphite nanopowder with a content of 1 wt.% was demonstrated. Based on the analysis of fracture surfaces performed using SEM microscopy, it was shown that the fi llers used lead to a significant improvement in the adhesion of the matrix to the composite fi bers.

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Incorporation of electroconductive carbon fibers to achieve enhanced anti-corrosion performance of zinc rich coatings

Cited by 60 publications

References 39 publications

Carbon Nanomaterials: Application and Prospects of Urban and Industrial Wastewater Pollution Treatment Based on Abrasion and Corrosion Resistance

Carbon Nanomaterials: Application and Prospects of Urban and Industrial Wastewater Pollution Treatment Based on Abrasion and Corrosion Resistance

pH-Sensitive Polydopamine–La (III) Complex Decorated on Carbon Nanofiber toward On-Demand Release Functioning of Epoxy Anti-Corrosion Coating

Effect of Nanofillers on the Mechanical Properties of Vinyl Ester Resin Used as a Carbon Fiber Reinforced Polymer Matrix

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