Superhydrophobic Polymer Coatings

A surface is considered as superhydrophobic in the case of having more than about 150° the apparent contact angle and hysteresis and sliding contact angles less than 10° and 5°, respectively. In addition, it must have a good physical and mechanical stability. Many of artificial hydrophobic polymer coatings are prepared by nature inspiration like lotus leaf. Furthermore, the superhydrophobic coatings with additional functions have recently been developed in various fields of applications such as anti-icing, self-cleaning, water repelling, and anticorrosion coatings. The aim of this chapter is reviewed briefly the important parameters for preparation of superhydrophobic coatings, working mechanisms, as well as fundamental models of superhydrophobicity.