Performance of a nanotextured superhydrophobic coating developed for high-voltage outdoor porcelain insulators

Allahdini, Anahita; Momen, Gelareh; Munger, Frédérick; Brettschneider, S.; Fofana, I.; Jafari, Reza

doi:10.1016/j.colsurfa.2022.129461

Cited by 20 publications

(8 citation statements)

References 48 publications

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“…Superhydrophobic coatings have broad prospects and applications in maintaining dryness, self-cleaning, reducing adhesion of liquids, etc. − Compared to traditional superhydrophobic materials manufacturing, superhydrophobic coatings have the advantage of low production cost and large-scale production, , which can be expected to solve the problem of rain attenuation in radomes. Previously, many applications and fabrications of superhydrophobic coatings have been reported. − However, there are few reports on the application of a superhydrophobic coating on the surface of radomes. , Previous studies on the application of a superhydrophobic coating on the radome surface mainly focused on changing the porous structure of the radome itself and the performance of the coating itself, but few studies have focused on the performance of the coating affecting the signal transmission.…”

mentioning

confidence: 99%

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

Cao,

Zhu,

Huo

et al. 2023

ACS Appl. Nano Mater.

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5G antennas typically operate in outdoor environments. These outdoor factors can reduce antenna accuracy, shorten life, and cause poor operational reliability. Therefore, applying materials with water-repellent properties to the radome can play an important role in protecting them from external environments. This paper reports a superhydrophobic nanocoating that can be sprayed on the radome. The dielectric constant of the coating is 2.709, and the dielectric strength is 38.58 kV/mm. The radome with a superhydrophobic coating was tested by rain, and its signal transmission is only −0.24 dB. Meanwhile, the static contact angle of the coating can reach 157°.

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confidence: 99%

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

Cao,

Zhu,

Huo

et al. 2023

ACS Appl. Nano Mater.

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“…Seyedmehdi, S. et al [105] prepared a simple hydrophobic coating by mixing nanofluorine particles with silicone rubber. Allahdini, A. et al [106] placed the mixture of nanoparticles and organ siloxane on the surface of methyl functional resin as a coating. The material produced by the template method has a stable hydrophobic structure and high durability.…”

Section: The Coating Methodsmentioning

confidence: 99%

“…Seyedmehdi, S. et al [105] prepared a simple hydrophobic coating by mixing nanofluorine particles with silicone rubber. Allahdini, A. et al [106] placed the mixture of nanoparticles and organ siloxane on the surface of methyl functional resin as a coating. Ribeiro, A.C. et al [107] used the mixture of methyl methoxy siloxane and methylsilsesquioxane, loaded with alumina trihydrate and polydimethylsiloxane as the coating, which showed excellent hydrophobic and electrical properties.…”

Section: The Coating Methodsmentioning

confidence: 99%

Research Progress of Self-Cleaning, Anti-Icing, and Aging Test Technology of Composite Insulators

Zhang

et al. 2022

Coatings

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Composite insulators are widely used in power systems because of their advantages of light weight, good pollution resistance, and high mechanical strength. With the increasingly serious environmental pollution problem, especially in winter at high latitudes, composite insulators are easily affected by fog, bird droppings, algae, and icing. Long-term exposure to the outdoor insulator surface will cause aging, which will then pose ae potential safety hazard to the stable operation of insulators. Therefore, the self-cleaning, anti-icing, and aging test technologies of composite insulators are particularly important. This paper introduces the research progress and current situation of self-cleaning, anti-icing surface preparation, and aging test technology of composite insulators, and looks forward to the future development of composite insulators.

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“…Figure 12 discloses the connection of SCNT conductivity to d and f according to (16). Maximum conduction of 0.014 S/m transpires with f >0.47 and d > 28 nm, while d < 11 nm results in an insulated SCNT.…”

Section: Parametric Studymentioning

confidence: 96%

“…Use of RTV (room temperature vulcanizing) coatings with conductive additives for anti-icing applications has been reported in previous references. [12][13][14][15][16][17][18] Employing the semiconducting glazed insulators in polluted regions have also been described due to the generation of a limited leakage current on the insulator surface. 19 In, 9 silicone rubber integrated with carbonaceous nanoparticles has been applied as a coating of high voltage porcelain insulators.…”

Section: Introductionmentioning

confidence: 99%

Production and an advanced model for electrical conductivity of silicone rubber/carbon nanotube nanocomposites as outdoor insulator housing material

Mohammadnabi

Rahmani

2023

Journal of Composite Materials

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Considerable cause of the condensation mechanism of moisture and fog on the contaminated high-voltage insulator surface is the temperature difference between the insulator surface and the dew point which eventuate owing to the mechanism of radiative cooling. Condensation of moisture leads to creating a conducting path on the insulator surface and make the insulator to be a conductor and results in the electrical transmission line failure. In order to cover the above-mentioned temperature difference, carbon nanotubes (CNTs) are being applied to the silicone rubber which is the insulator housing material. This study is based on joule heating generation which decrease the electrical resistance of the high-voltage insulator surface. An advanced mathematical model which is based on Pukanszky formulation for estimation of composite tensile strength was presented for the effectual electrical conduction of silicone rubber - carbon nanotube nanocomposite (SCNT). SCNT samples were produced by the addition of dissimilar CNT concentrations to a high temperature vulcanizing (HTV) silicone rubber by solution-blending method. Comparison between experimental results and theoretical forecasts showed an excellent agreement. The obtained model disclosed that the lower ranks of tunneling resistivity and distance, the higher magnitudes of tunneling diameter, the higher concentration of longer and thinner CNTs, lower CNT curliness, higher fraction of networked CNTs, and deeper interphase can produce the maximum level of SCNT conductivity.

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Performance of a nanotextured superhydrophobic coating developed for high-voltage outdoor porcelain insulators

Cited by 20 publications

References 48 publications

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

Research Progress of Self-Cleaning, Anti-Icing, and Aging Test Technology of Composite Insulators

Production and an advanced model for electrical conductivity of silicone rubber/carbon nanotube nanocomposites as outdoor insulator housing material

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