Fabrication of Hydrophilic Organosilicon Coatings and Study of Their Resistance to Factors Accompanying Corona Discharge

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Resumo

Modern power industry widely uses high-voltage overhead lines to transport electricity, which are characterized by problems of corona discharge and leakage currents, especially in rain and snow conditions. One approach to solve these problems is to create protective coatings that can reduce corona in adverse weather conditions. This paper presents a study of a hydrophilic organosilicon coating based on aminopropyltriethoxysilane and PEG-400 for aluminum wires. Studies conducted to assess the resistance of the coating to prolonged contact with water, UV radiation and an ozone-saturated atmosphere have shown that the hydrophilicity of the coating increases under effect of these factors, which improves its anti-corona properties. Thus, durability under operating conditions open prospects for use of the developed coating in the energy sector.

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Sobre autores

К. Emelyanenko

Институт физической химии и электрохимии им. А.Н. Фрумкина РАН

Autor responsável pela correspondência
Email: emelyanenko.kirill@mail.ru
Rússia, Москва

О. Ryabkova

Институт физической химии и электрохимии им. А.Н. Фрумкина РАН

Email: emelyanenko.kirill@mail.ru
Rússia, Москва

N. Denman

Институт физической химии и электрохимии им. А.Н. Фрумкина РАН

Email: emelyanenko.kirill@mail.ru
Rússia, Москва

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2. Fig. 1. Photographs of the experimental setup for investigating the evolution of the wetting angle

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3. Fig. 2. Evolution of wetting angle (red squares, right axis), surface tension (blue circles, first left axis) and bubble volume (green triangles, second left axis) from the time of continuous surface contact with the submerged bubble under water

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4. Fig. 3. Changes in the wetting angle of coatings during ozone exposure. Blue squares indicate wetting angles directly after exposure, red circles after additional exposure in air atmosphere for 14 hours

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5. Fig. 4. Changes in the wetting angle of coatings during exposure to UV light at an intensity of 10 W/cm2

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