Research Progress of Preparation and Self-Cleaning Anticorrosion Properties of Superhydrophobic Graphene-Based Materials

Abstract

Superhydrophobic surfaces have a contact angle(CA) greater than 150° and a sliding angle(SA) smaller than 10°, which can prevent water from penetrating into the structure under dynamic impacts, and thus can be used in high-end fields such as self-cleaning and anti-corrosion. Natural objects such as lotus leaves and rose petals were taken as the prototypes of artificial superhydrophobic surfaces. The main problem of self-cleaning superhydrophobic surfaces is that they are susceptible to mechanical instability and may lose superhydrophobicity after wear/scratch. However, the development of nanotechnology has brought many advantages to the preparation and performances of superhydrophobic surfaces. Many scientific groups have reported that graphene and its derivatives exhibited superhydrophobic properties. Therefore, with the help of this outstanding two-dimensional material, superhydrophobic surfaces with excellent mechanical durability, self-cleaning performance and corrosion resistance can be generated. This work focused on introducing the preparation strategies and corresponding properties of superhydrophobic graphene-based materials. It was also anticipated that the incorporation of superhydrophobic and graphene-based materials would bring new opportunities for the development of many high-performance equipment.

Keywords

• graphene|superhydrophobic|self-cleaning|anti-corrosion