Shear-controlled micro/nanometer-scaled super-hydrophobic surfaces with tunable sliding angles from single component isotactic poly (propylene)

With the proper selection of shear and thermal conditions, super-hydrophobic polymeric surfaces (contact angle > 150 degrees) with tunable sliding angles (from less than 1 degrees to higher than 90 degrees) can be prepared from pure isotactic poly(propylene) (iPP) without any further modification with low-surface-energy components under ambient atmosphere. The formed surfaces have naturally good thermal properties, chemical and moisture resistance, low density, and potentially low manufacturing cost.