Boinovich Ludmila B, Emelyanenko Alexandre M, Emelyanenko Kirill A, Modin Evgeny B
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry , Russian Academy of Sciences , 119071 Moscow , Russia.
CIC nanoGUNE , Donostia San Sebastian 20018 , Spain.
ACS Nano. 2019 Apr 23;13(4):4335-4346. doi: 10.1021/acsnano.8b09549. Epub 2019 Apr 9.
Atmospheric icing has become a global concern due to hazardous consequences of ice accretion on air, land, and sea transport and infrastructure. Icephobic surfaces due to their physicochemical properties facilitate a decrease in ice and snow accumulation under outdoor conditions. However, a serious problem of most superhydrophobic surfaces described in the literature is poor operational durability under harsh corrosive and abrasive loads characteristic of atmospheric operation. Here, we elucidate main surface phenomena determining the anti-icing behavior and show experimentally how different mechanisms contribute to long-term durability. For comprehensive exploitation of those mechanisms, we have applied a recently proposed strategy based on fine-tuning of both laser processing and protocols of deposition of the fluorooxysilanes onto the nanotextured surface. Prolonged outdoor tests evidence that a developed strategy for modification of materials on the nanolevel allows overcoming the main drawbacks of icephobic coatings reported so far and results in resistance to destroying atmospheric impacts.
由于积冰对航空、陆地和海上运输及基础设施造成的危险后果，大气结冰已成为全球关注的问题。具有特殊物理化学性质的憎冰表面有助于在户外条件下减少冰雪堆积。然而，文献中描述的大多数超疏水表面存在一个严重问题，即在大气运行中特有的恶劣腐蚀和磨损负荷下，其操作耐久性较差。在此，我们阐明了决定防冰行为的主要表面现象，并通过实验展示了不同机制如何有助于实现长期耐久性。为了全面利用这些机制，我们应用了一种最近提出的策略，该策略基于对激光加工以及氟代氧硅烷在纳米纹理表面沉积方案的微调。长期的户外测试表明，一种已开发的纳米级材料改性策略能够克服迄今为止报道的憎冰涂层的主要缺点，并使材料具备抵抗大气侵蚀破坏的能力。
