The application of epoxy resin coating in grounding grid

Hu, Quan; Chen, Z. R.; Liu, Xi; Wang, X. Y.; Wang, H. F.

doi:10.1088/1757-899x/292/1/012110

Cited by 10 publications

(2 citation statements)

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“…Applying an anticorrosive resin coating on steel is one alternative for reducing its corrosion rate [5,6]. Resin coating has poor electrical conductivity [7], so it separates from the steel due to the electrostatic charge accumulation during its service life; that is, debonding occurs [8,9]. This is particularly relevant in the construction of grounding grids and oil and gas pipelines, where a decrease in grid conductivity [10] and pipeline explosions [11] can occur.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Ratio of Nano-Cu to Hydroxylated MWCNTs on Anticorrosion and Surface Conductivity of Cu/MWCNT Epoxy Coatings on a Steel Substrate

Liang

Pan

2023

Coatings

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Epoxy coatings provide an economical and practical solution for combating steel corrosion. However, epoxy coatings have poor conductivity, resulting in the accumulation of electrostatic charges. The surface conductivity and anticorrosion properties of epoxy coatings can be improved by adding nano-Cu and hydroxylated multi-walled carbon nanotubes (MWCNTs). This paper investigates the impact of MWCNTs at different concentrations (2.5, 5%) and the ratio of nano-Cu to MWCNTs on the surface conductivity and anticorrosion properties of epoxy coatings on a steel substrate. The findings from the four-probe method of measuring surface resistance indicated that the surface resistivity of steel coated with an epoxy composite of 5% MWCNTs and 65% nano-Cu (Cu65/MWCNT5) was significantly lower, approximately by one order of magnitude, compared to steel coated with a 5% MWCNT (MWCNT5) epoxy coating. When the Cu65/MWCNT5-coated steel was immersed in a 3.5 wt % NaCl solution for 30 days, it was observed that there was a minimal effect on its surface resistivity. The inclusion of a high content of MWCNTs facilitates a more uniform distribution of Cu particles within the epoxy coatings, thereby improving the anticorrosion properties of these coatings on a steel substrate. This was further corroborated by the results of the polarization curves and electrochemical impedance spectroscopy, demonstrating that the Cu65/MWCNT5 epoxy coating on a steel substrate offers exceptional anticorrosion and barrier protection properties. The corrosion rate of steel with a Cu65/MWCNT5 epoxy coating was three orders of magnitude lower than that of steel with a Cu65/MWCNT2.5 epoxy coating, at 4.79 × 10−7 mm/year.

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Section: Introductionmentioning

confidence: 99%

Effects of the Ratio of Nano-Cu to Hydroxylated MWCNTs on Anticorrosion and Surface Conductivity of Cu/MWCNT Epoxy Coatings on a Steel Substrate

Liang

Pan

2023

Coatings

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“…Epoxy resins are widely used in construction as adhesive, potting, insulating materials, and binders for filled compositions for repair. [ 1, 2 ] The properties of epoxy composites can be changed largely by using various epoxy resins, hardeners, fillers, plasticizers, and changing the quantitative content. [ 3‐8 ] The fillers are used to obtain the desired viscosity, reduce shrinkage, and reduce the temperature coefficient of expansion, to reduce the cost of the product and its coloring.…”

Section: Introductionmentioning

confidence: 99%

Kinetic features of polymerization of epoxy resin modified by silicon‐containing additives and mineral fillers

Kovaleva

Савотченко

2021

Polymer Engineering & Sci

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In this article, we study the process of polymerization of a modified ED-20 epoxy binder under conditions of highly filled systems. It is found that modifying additives affect the process of polymerization of the binder, increasing the degree of conversion of epoxy groups of ED-20 resin, speeding up the process of polymerization, and increasing the exothermic effect of the reaction. Curing in the presence of a modifying silicon-containing additive takes place in a mode that promotes the formation of a more ordered structure, creating opportunities for relaxation of internal stresses and favorable conditions for the formation of an ordered microstructure. The equations sufficiently fitting the measured points of the concentration of epoxy groups are calculated. We obtain the kinetic curves of curing, which illustrate the process of heat release of the ED-20 binder and the same system modified with mineral fillers. It is found that the heat release occurs more intensively when modifiers are introduced into the epoxy binder. It is derived that the experimental data of kinetics of heat release at considered time range can be sufficiently described by a parabolic equation.

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The equation of glass transition of epoxy diane resin modified with the nanoparticle fillers

Савотченко

Kovaleva

2021

Polym. Bull.

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The application of epoxy resin coating in grounding grid

Cited by 10 publications

References 0 publications

Effects of the Ratio of Nano-Cu to Hydroxylated MWCNTs on Anticorrosion and Surface Conductivity of Cu/MWCNT Epoxy Coatings on a Steel Substrate

Effects of the Ratio of Nano-Cu to Hydroxylated MWCNTs on Anticorrosion and Surface Conductivity of Cu/MWCNT Epoxy Coatings on a Steel Substrate

Kinetic features of polymerization of epoxy resin modified by silicon‐containing additives and mineral fillers

The equation of glass transition of epoxy diane resin modified with the nanoparticle fillers

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