电晕放电
材料科学
超亲水性
接触角
复合数
涂层
复合材料
日冕(行星地质学)
放电
吸附
纳米-
纳米颗粒
超疏水涂料
纳米技术
电极
化学
物理
物理化学
有机化学
天体生物学
维纳斯
作者
Xiaoming Wang,Xingeng Li,Qingquan Liu,Wenjing Li,Yaping Wu
标识
DOI:10.1016/j.apsusc.2019.01.224
摘要
Superhydrophobic surface is ideal for outdoor insulation due to its low surface energy and excellent self-cleaning ability. However, superhydrophobicity would become weak or lost under corona discharge, which is inevitable in high voltage transmission lines. Composite superhydrophobic surface was fabricated with fluorosilicone resin and silica nanoparticles. It was transformed to superhydrophilicity under corona discharge, but it could recover superhydrophobicity under low intensity corona discharge. Electrostatic charges were proposed to result in temporary superhydrophilicity. When corona discharge intensity was high, hydrophilic silica particles covered with fluorosilicone resin were exposed to air. Adsorbed water film was formed on the surface and prevented the recovery of superhydrophobicity.
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