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In situ investigation of ice formation on surfaces with representative wettability

机译：具有代表性润湿性的表面冰的原位研究

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摘要

In this work, we have prepared a series of samples with five representative surface wettabilities: i.e. superhydrophilic, hydrophilic, critical, hydrophobic and superhydrophobic. These samples were in situ observed the freezing process of water droplets on clean and artificially contaminated surfaces to investigate the relationship between surface wettability and ice formation. Ice accretion was also tested by spraying supercooled water to samples at different horizontal inclination angles (HIA). Surface topography was proved to be essential to the icing through heterogeneous nucleation. However, the correlation between surface wettability and ice formation was not observed. Finally, we found that the superhydrophobic surface clearly exhibited reduced ice accumulation in the initial stage of ice formation associated with the lower sliding angle (SA) of water droplets.
机译：在这项工作中，我们准备了一系列具有五种代表性表面润湿性的样品：即超亲水性，亲水性，临界，疏水性和超疏水性。这些样品在原位观察清洁和人工污染的表面上水滴的冻结过程，以研究表面润湿性与结冰之间的关系。还通过以不同的水平倾斜角度（HIA）向样品喷洒过冷水来测试积冰。事实证明，表面形貌对于通过异质成核的结冰至关重要。但是，未观察到表面润湿性与冰形成之间的相关性。最后，我们发现，超疏水表面在冰形成的初始阶段与水滴的较低滑移角（SA）明显表现出减少的冰积聚。

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  • 来源
    《Applied Surface Science》 |2010年第22期|p.6764-6769|共6页
  • 作者

    Long Yin; Qiang Xia; Jian Xue; Shuqing Yang; Qingjun Wang; Qingmin Chen;

  • 作者单位

    Polymer Science and Engineering Department, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 22 Hankou Road,Nanjing, Jiangsu 210093, China;

    Yunnan Electric Power Test & Research Institute, 14 Dongfeng Road, Kunming, Yunnan 650051,China;

    Polymer Science and Engineering Department, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 22 Hankou Road,Nanjing, Jiangsu 210093, China;

    Polymer Science and Engineering Department, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 22 Hankou Road,Nanjing, Jiangsu 210093, China;

    Polymer Science and Engineering Department, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 22 Hankou Road,Nanjing, Jiangsu 210093, China;

    Polymer Science and Engineering Department, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 22 Hankou Road,Nanjing, Jiangsu 210093, China;

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  • 正文语种 eng
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  • 关键词

    superhydrophobic; contact angle; surface topography; ice accretion;

    机译：超疏水接触角表面形貌积冰;

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