State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
J Colloid Interface Sci. 2018 Jun 1;519:130-136. doi: 10.1016/j.jcis.2018.02.055. Epub 2018 Feb 19.
Superhydrophobic surfaces with micro-/nanohierarchical structures are mechanically weak. Generally, organic solvents are used to dissolve or disperse organic adhesives and modifiers to enhance the mechanical strength of superhydrophobic surfaces. In this work, an all-water-based spraying solution is developed for the preparation of robust superhydrophobic surfaces, which contains ZnO nanoparticles, aluminum phosphate as an inorganic adhesive, and polytetrafluoroethylene with low surface energy. The all-water-based system is appreciated for low price and less pollution. Importantly, the prepared superhydrophobic surfaces are durable enough against various harsh conditions (such as UV irradiation for 12 h, pH values from 1 to 13, and temperatures from -10 to 300 °C for 12 h) and physical damages (including sandpaper abrasion and sand impact tests for 50 cycles). In addition, the obtained interfacial materials show promise for practical applications such as anti-icing and oil-water separation.
具有微纳分级结构的超疏水表面机械强度较弱。通常，使用有机溶剂溶解或分散有机粘合剂和改性剂以提高超疏水表面的机械强度。在这项工作中，开发了一种基于水的喷涂溶液，用于制备坚固的超疏水表面，其中包含氧化锌纳米粒子、磷酸铝作为无机粘合剂和具有低表面能的聚四氟乙烯。基于水的系统具有价格低廉和污染少的优点。重要的是，所制备的超疏水表面能够耐受各种恶劣条件（如 12 小时的紫外线照射、pH 值从 1 到 13 以及-10 到 300°C 的温度 12 小时）和物理损伤（包括 50 个循环的砂纸磨损和沙粒冲击测试）。此外，所获得的界面材料在实际应用中具有广阔的前景，例如防冰和油水分离。
