Robust superamphiphobic aluminum surfaces

For a recent study, scientists have commited themselvses to the  fabrication and investigation of robust superamphiphobic aluminum surfaces.

Drops on a metal surface as a symbol.
Researchers report a facile approach to fabricate superamphiphobic Al surfaces. Image source: Comfreak - Pixabay (symbol image). -

The researchers report a facile, cost-effective, and environmentally friendly approach to fabricate superamphiphobic Al surfaces.

Hierarchical micro/nanoscale morphology of Al surfaces was formed with CuCl2 etching followed by hot water treatment. After derivatisation of fluoroalkylphosphonic acid (C10F21C2H4PO(OH)2, FPA) monolayer, desirable superamphiphobicity was achieved.

Surfaces maintained superamphiphobic

It was found that the FPA/Al surfaces maintained superamphiphobic under the impinging by SiC flow with a falling height of 30 cm, suggesting good mechanical durability. Wettability measurement showed that the FPA self-assembled monolayer remained integrated up to 300°C, above which damage was observed.

According to the scientists, the approach reported in the paper can be readily integrated into product lines for wide variety of applications.

The study has been published in Journal of Coatings Technology and Research, Vol. 16, 2019.

Image source: Pixabay.

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