Reduction of ice adhesion on nanostructured and nanoscale slippery surfaces
Reduction of ice adhesion on nanostructured and nanoscale slippery surfaces
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DOI：
10.1063/10.0017254
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发表时间：
2023-03-01
期刊：
影响因子：
--
通讯作者：
Fu, Yongqing
中科院分区：
文献类型：
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作者：
Haworth, Luke;Yang, Deyu;Fu, Yongqing
在包括航空和可再生能源在内的许多行业中，结构表面上的冰成核和积冰是主要的安全和操作问题的来源。解决这些问题的常用方法是主动方法，如加热，超声波和化学品或被动方法，如表面涂层。在这项研究中，我们探讨了冰的粘附性能光滑涂层基板通过测量所需的剪切力，以消除釉冰块上的涂层基板。在所研究的纳米结构和纳米尺度表面中[即，超疏水涂层、含氟聚合物涂层和聚二甲基硅氧烷（PDMS）链涂层]，具有柔性聚合物刷和液体状结构的光滑的全疏性共价附着液体（SOCAL）表面显著降低了玻璃和硅表面上的冰粘附。对粗糙基底上的SOCAL涂层的进一步研究也证明了其低冰粘附力。冰附着力的降低归因于PDMS链的刷状结构的柔性性质，使得冰容易分离。(c)2023年作者。
Ice nucleation and accretion on structural surfaces are sources of major safety and operational concerns in many industries including aviation and renewable energy. Common methods for tackling these are active ones such as heating, ultrasound, and chemicals or passive ones such as surface coatings. In this study, we explored the ice adhesion properties of slippery coated substrates by measuring the shear forces required to remove a glaze ice block on the coated substrates. Among the studied nanostructured and nanoscale surfaces [i.e., a superhydrophobic coating, a fluoropolymer coating, and a polydimethylsiloxane (PDMS) chain coating], the slippery omniphobic covalently attached liquid (SOCAL) surface with its flexible polymer brushes and liquid-like structure significantly reduced the ice adhesion on both glass and silicon surfaces. Further studies of the SOCAL coating on roughened substrates also demonstrated its low ice adhesion. The reduction in ice adhesion is attributed to the flexible nature of the brush-like structures of PDMS chains, allowing ice to detach easily. (c) 2023 Author(s).