Facile Fabrication of Durable Copper-Based Superhydrophobic Surfaces via Electrodeposition,Langmuir

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Facile Fabrication of Durable Copper-Based Superhydrophobic Surfaces via Electrodeposition
Langmuir ( IF 3.7 ) Pub Date : 2017-11-17 00:00:00 , DOI: 10.1021/acs.langmuir.7b02227
R. Jain ₁ , R. Pitchumani ₁

Affiliation

Superhydrophobic surfaces have myriad industrial applications, yet their practical utilization has been limited by their poor mechanical durability and longevity. We present a low-cost, facile process to develop superhydrophobic copper-based coatings via an electrodeposition route, that addresses this limitation. Through electrodeposition, a stable, multiscale, cauliflower shaped fractal morphology was obtained and upon modification by stearic acid, the prepared coatings show extreme water repellency with contact angle of 162 ± 2° and roll-off angle of about 3°. Systematic studies are presented on coatings fabricated under different processing conditions to demonstrate good durability, mechanical and underwater stability, corrosion resistance, and self-cleaning effect. The study also presents an approach for rejuvenation of slippery superhydrophobic nature (roll-off angle <10°) on the surfaces after long-term water immersion. The presented process can be scaled to larger, durable coatings with controllable wettability for diverse applications.

中文翻译：

通过电沉积轻松制造耐用的铜基超疏水表面

超疏水表面具有无数的工业应用，但是由于其较差的机械耐久性和寿命而限制了其实际应用。我们提出了一种低成本，简便的方法来开发通过电沉积途径的超疏水性铜基涂料，从而解决了这一局限性。通过电沉积，获得了稳定的，多尺度的，花椰菜形的分形形态，经硬脂酸改性后，制得的涂层显示出极佳的拒水性，接触角为162±2°，滚落角约为3°。对在不同加工条件下制造的涂料进行了系统研究，以证明其良好的耐久性，机械和水下稳定性，耐腐蚀性和自清洁效果。该研究还提出了一种在长期浸入水中后恢复表面光滑的超疏水性质（滑落角<10°）的方法。所提出的工艺可以扩展到具有可控润湿性的更大，耐用的涂料，以用于各种应用。

更新日期：2017-11-19

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