Tunable Superhydrophobicity from 3D Hierarchically Nano‐Wrinkled Micro‐Pyramidal Architectures
Tunable Superhydrophobicity from 3D Hierarchically Nano‐Wrinkled Micro‐Pyramidal Architectures
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DOI：
10.1002/adfm.202101068
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发表时间：
2021-04
影响因子：
19
通讯作者：
Weixin Zhang;Jie Gao;Yujun Deng;Linfa Peng;P. Yi;X. Lai;Zhong-Min Lin
中科院分区：
文献类型：
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作者：
Weixin Zhang;Jie Gao;Yujun Deng;Linfa Peng;P. Yi;X. Lai;Zhong-Min Lin
具有分级结构的界面表面引发了强烈的研究兴趣，并被用于从防冰、防雾、表面增强拉曼光谱到催化反应的广泛应用。然而，高成本的制造工艺和有限的耐用性仍然是需要解决的巨大挑战，特别是对于超疏水性。在这项工作中，提出了一种用于可拉伸，透明和坚固的超疏水表面的新型混合方法，有效地以环境友好的方式构建具有可调分层皱纹的微金字塔架构。由于其多尺度结构，在稳定的“Lotus”状态下，接触角为172°，滑动角为15 °，具有优异的超疏水性。此外，耐磨性和稳定性测试还表明，在模拟严苛的真实的应用环境下，其具有上级性能。利用这种多尺度协同合作效应可以是一种优秀的制造策略，并可扩展到需要分层架构的其他表面工程。
Interfacial surfaces with hierarchical structures have triggered intense research interest and been used in a broad range of applications ranging from anti‐icing, anti‐fogging, surface‐enhanced Raman spectroscopy to catalytic reaction. However, the high‐cost manufacturing processes and the limited durability remain as great challenges that need to be addressed, especially for superhydrophobicity. In this work, a novel hybrid approach for stretchable, transparent, and robust superhydrophobic surfaces is proposed, constructing micro‐pyramid architectures with tunable hierarchical wrinkles efficiently and in an environmentally friendly manner. Due to the multiscale structures, excellent superhydrophobicity is obtained with contact angle of ≈172° and sliding angle ≈5° in a steady “Lotus” state. Further, the wear resistance and stability tests also suggest a superior performance under simulated severe real‐world applications. Utilizing such multiscale synergistic co‐operation effects can be an excellent manufacturing strategy and be extended to other surface engineering where hierarchical architectures are needed.