PREPARATION OF POLYSTYRENE/ NICKEL OXIDE NANOCOMPOSITE SUPERHYDROPHOBIC COATING FOR PROTECTION AGAINST CORROSION

Abstract

Many technologies have been studied carefully to overcome the corrosion phenomenon of various metal species found in nature. Among these, the high water repellent surfaces have received significant attention from researchers and industrialists from the last few decades. These surfaces are known as superhydrophobic surfaces that have high WCA >150° and low CAH<10°. Herein, Polystyrene/Nickel oxide (PS-NiO) nanocomposite superhydrophobic coatings are produced using a one-step electrospinning technique. Three coatings were fabricated to study the effect of varying NiO nanoparticles concentrations on the wettability of polystyrene coating. The morphology, hydrophobicity behavior, structures, and thermal properties of PS/NiO nanocomposite coatings were investigated. It was found that the presence of NiO nanoparticles enhances various features of polystyrene coating. A high water contact angle of 155°±2° and low contact angle hysteresis of 5° was achieved. Also, corrosion resistance performance of PS/NiO nanocomposite coating was evaluated using the EIS technique. The observations showed that the addition of NiO nanoparticle highly enhances the corrosion protection efficiency of PS coating.