In this paper we show the fabrication of hydrophobic polymeric surfaces through laser microstructuring. By using 70-ps pulses from a Q-switched and mode-locked Nd:YAG laser at 532 nm, we were able to produce grooves with different width and separation, resulting in square-shaped pillar patterns. We investigate the dependence of the morphology on the surface static contact angle for water, showing that it is in agreement with the Cassie-Baxter model. We demonstrate the fabrication of a superhydrophobic polymeric surface, presenting a water contact angle of 157°. The surface structuring method presented here seems to be an interesting option to control the wetting properties of polymeric surfaces. © 2010 Elsevier B.V. All rights reserved.
Cardoso, M. R., Tribuzi, V., Balogh, D. T., Misoguti, L., & Mendona, C. R. (2011). Laser microstructuring for fabricating superhydrophobic polymeric surfaces. Applied Surface Science, 257(8), 3281–3284. https://doi.org/10.1016/j.apsusc.2010.10.156