Figure 3
From: Nearly Perfect Durable Superhydrophobic Surfaces Fabricated by a Simple One-Step Plasma Treatment
Surface durability of the fabricated PTFE sheets exposed to air for a long time. (A) The contact angle and the sliding angle of the superhydrophobic PTFE sheets (n = 6) are almost maintained after 80 days of air-aging. (B) SEM images before the aging test (top) and after 80 days of exposure to air (bottom). The crown-shape bumps are almost maintained.
