Zuo Zhiping, Liao Ruijin, Guo Chao, Zhao Xuetong, Zhuang Aoyun, Yuan Yuan
J Nanosci Nanotechnol. 2017 Jan;17(1):420-26.
Ice accumulation on insulators affected the safety of power system and may inflict serious consequences such as insulator flashover accidents and power failure. This article reported a simple method to prepare anti-icing polydimethylsiloxane superhydrophobic surface on glass by utilizing nano-particle filling method. The effect of concentration of silica nanoparticles on superhydrophobicity of the samples was investigated. The wettability, surface morphology and anti-icing property of the as-prepared superhydrophobic surface were characterized by corresponding methods. Results show that the as-prepared surface with addition amount of 7 g silica nanoparticles exhibited self-cleaning property and excellent superhydrophobicity with a contact angle of 165.7 ± 2.4° and a sliding angle of 3.8°. It was found that the ice formation was delayed for 29 min at −5 °C. Moreover, the as-prepared superhydrophobic surface showed superhydrophobicity in the pH range of 1–13 and exhibited excellent drop impact stability. The as-prepared superhydrophobic surface may be suitable for applications in cold regions owing to its flexibility, durability and anti-icing property.
绝缘子积冰影响电力系统安全，可能引发诸如绝缘子闪络事故和停电等严重后果。本文报道了一种利用纳米颗粒填充法在玻璃上制备抗冰聚二甲基硅氧烷超疏水表面的简单方法。研究了二氧化硅纳米颗粒浓度对样品超疏水性的影响。采用相应方法对所制备超疏水表面的润湿性、表面形貌和抗冰性能进行了表征。结果表明，添加量为7 g二氧化硅纳米颗粒的所制备表面具有自清洁性能和优异的超疏水性，接触角为165.7±2.4°，滑动角为3.8°。发现在−5℃时结冰延迟了29分钟。此外，所制备的超疏水表面在pH值为1 - 13的范围内表现出超疏水性，并具有优异的液滴冲击稳定性。所制备的超疏水表面因其柔韧性、耐久性和抗冰性能可能适用于寒冷地区的应用。
