Superhydrophobic coatings made from polydimethylsiloxane and wax

Scientists recently reported the preparation of a composite suspension coating from biocompatible carnauba wax and polydimethylsiloxane, and demonstrated its superhydrophobicity and resistance to water impact.

Yellow plates in a pile.
There is a strong need for mechanically robust superhydrophobic coatings that can be manufactured from eco-friendly and sustainable materials for a broad portfolio of applications. Source: Mareefe / Pixabay. -

The superhydrophobicity and mechanical stability of the coated surfaces can be controlled by adjusting the concentrations of constituent materials.

The composite suspension can be easily drop cast or spray-coated on common materials, such as glass and paper, wherein the coated surface exhibits excellent superhydrophobicity and self-cleaning property.

High resistance against water impact

Glass substrates spray-coated with the composite suspension demonstrate high levels of resistance against water impact, retaining superhydrophobicity even after the impact of 250,000 water droplets.

The study is published in: Progress in Organic Coatings Volume 136, November 2019, 105279.

Image source: Pixabay

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