Figure 4
From: Transparent, abrasion-insensitive superhydrophobic coatings for real-world applications
Fluoropor coatings on metal, polymer and textile surfaces. Images above: top view of the substrates, images below: side view with 20 µL droplets of water on the superhydrophobic surfaces. (a) Fluoropor on gold (glass slide with chromium and gold layer, partially etched), static contact angle: 153.4 ± 4.6°. (b) Fluoropor on copper (circuit board partially etched), static contact angle: 153.1 ± 1.6°. (c) Fluoropor on copper sheet, static contact angle: 157.9 ± 2.0°, scale bar: 5 mm. (d) Fluoropor on an epoxy polymer (circuit board, partially etched), static contact angle: 154.9 ± 2.5°, scale bar: 5 mm. (e) Fluoropor on microfiber cloth, static contact angle: 148.9 ± 1.1°, scale bar: 5 mm. (f) Fluoropor on copper sheet shown in c forms an air-retaining Salvinia layer under water.
