Facile fabrication of hierarchical textures for substrate-independent and durable superhydrophobic surfaces,Nanoscale

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Facile fabrication of hierarchical textures for substrate-independent and durable superhydrophobic surfaces
Nanoscale ( IF 5.8 ) Pub Date : 2022-06-22 , DOI: 10.1039/d2nr02157a
Yuchun He ₁ , Lingxiao Wang ₁ , Tingni Wu ₁ , Zhipeng Wu ₁ , Yu Chen ₁ , Kai Yin _{1,

2}

Affiliation

On account of their wide range of applications in self-cleaning, anti-icing, frost suppression, etc., superhydrophobic surfaces have attracted considerate attention. However, most of the superhydrophobic surfaces can only be prepared on the surfaces of specific materials and are easily damaged in the case of friction. In this work, we propose a facile method to achieve superhydrophobicity on various substrate surfaces. By femtosecond laser direct processing, micron-level grooves and protrusions are constructed on substrates to form a protective layer. Then, the substrates covered by polytetrafluoroethylene (PTFE) were scanned to make the surfaces of the substrates superhydrophobic. Since the PTFE micro–nano-particles are evenly distributed on the grooves and protrusions, the surfaces exhibit robust superhydrophobicity with excellent anti-friction performance that is independent of the substrate properties. This work provides an efficient and environmentally friendly path for achieving robust superhydrophobic surfaces on various substrates.

中文翻译：

轻松制造与基板无关且耐用的超疏水表面的分层纹理

由于其在自洁、防冰、抑霜等方面的广泛应用., 超疏水表面引起了广泛关注。然而，大多数超疏水表面只能在特定材料的表面上制备，在摩擦的情况下容易损坏。在这项工作中，我们提出了一种在各种基材表面上实现超疏水性的简便方法。通过飞秒激光直接加工，在基板上构建微米级的凹槽和突起，形成保护层。然后，扫描由聚四氟乙烯 (PTFE) 覆盖的基板，使基板表面具有超疏水性。由于 PTFE 微纳米颗粒均匀地分布在凹槽和突起上，因此表面表现出强大的超疏水性和优异的抗摩擦性能，与基材性能无关。

更新日期：2022-06-22

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