All-perfluoropolymer, nonlinear stability-assisted monolithic surface combines topology-specific superwettability with ultradurability.
All-perfluoropolymer, nonlinear stability-assisted monolithic surface combines topology-specific superwettability with ultradurability.
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DOI：
10.1016/j.xinn.2023.100389
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发表时间：
2023-03-13
期刊：
影响因子：
32.1
通讯作者：
Ren, Kangning
中科院分区：
文献类型：
--
作者：
Li, Wanbo;Chan, Chiu-wing;Li, Zeyu;Siu, Sin -Yung;Chen, Siyu;Sun, Han;Liu, Zeyu;Wang, Yisu;Hu, Chong;Pugno, Nicola Maria;Zare, Richard N.;Wu, Hongkai;Ren, Kangning
开发多功能和坚固的表面，模仿生物的皮肤来调节空气/液体/固体物质是许多生物启发应用的关键。尽管取得了显著的成就，例如在开发坚固的超疏水表面的情况下，由于其固有的权衡和缺乏可扩展的制造方法，同时实现拓扑特异性超润湿性和多管耐用性仍然是难以捉摸的。在这里，我们提出了一个很大程度上未开发的策略，即制备全氟聚合物（特氟龙），非线性稳定性辅助单片表面，用于有效调节物质。实现拓扑特异性超润湿性和多级耐久性的关键是几何-材料力学设计耦合超润湿性稳定性和机械强度。其制造可行性、多种使用模式（涂层、膜和胶带）、在9米深的水中长期捕集空气、低污染液滴运输和纳米污垢的自清洁证明了该表面的多功能性。我们还展示了它的多级耐用性，包括强大的基材附着力，机械稳健性和化学稳定性，所有这些都是实际应用所需要的。单片全氟聚合物表面（MPS）策略使仿生表面能够将几何材料力学与拓扑特异性超润湿稳定性相结合。理论模型预测了同时实现超润湿性和超耐久性的最佳结构和材料。将仿生表面的稳定性扩展到非线性范围，进一步提高了仿生表面的超耐久性。MPS策略有助于将生物表面原理转化为现实世界的应用。
Developing versatile and robust surfaces that mimic the skins of living beings to regulate air/liquid/solid matter is critical for many bioinspired applications. Despite notable achievements, such as in the case of developing robust superhydrophobic surfaces, it remains elusive to realize simultaneously topology-specific superwettability and multipronged durability owing to their inherent tradeoff and the lack of a scalable fabrication method. Here, we present a largely unexplored strategy of preparing an all-perfluoropolymer (Teflon), nonlinear stability-assisted monolithic surface for efficient regulating matters. The key to achieving topology-specific superwettability and multilevel durability is the geometric-material mechanics design coupling superwettability stability and mechanical strength. The versatility of the surface is evidenced by its manufacturing feasibility, multiple-use modes (coating, membrane, and adhesive tape), long-term air trapping in 9-m-deep water, low-fouling droplet transportation, and self-cleaning of nanodirt. We also demonstrate its multilevel durability, including strong substrate adhesion, mechanical robustness, and chemical stability, all of which are needed for real-world applications. The monolithic perfluoropolymer surface (MPS) strategy enables biomimetic surfaces to combine geometric-material mechanics with topology-specific superwetting stability. The theoretical model predicted optimal structures and materials to realize simultaneously superwettability and ultradurability. The stability of the biomimetic surfaces was extended into a nonlinear range for further improving ultradurability. The MPS strategy helps to translate bioinspired surface principles into real-world applications.
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