Water-Repelling Properties of Low-Dimensional Carbon Nanostructures

Low-dimensional carbon nanostructures exhibit water-repelling properties that are desirable in a diverse range of applications, such as self-cleaning surfaces, biomedical devices, water-proof clothing, and naval vessels. The dimensionality of carbon nanomaterials can impact the behavior of water droplets on these nanostructures. Here we present new knowledge on the relationship between the dimensionality and water-repelling properties of low-dimensional carbon nanomaterials. Measurements of the static contact angles and roll-off angles of water droplets in direct contact with one-dimensional carbon nanoparticles and two-dimensional graphene sheets will be shown and compared to three-dimensional graphite. The ability of low-dimensional nanomaterials to resist dynamic water impalement during water droplet impact will also be presented. Furthermore, we will focus on the water resistance of coatings consisting of low-dimensional nanomaterials and commercially-available adhesives. The results discussed in this presentation will advance knowledge on the effect of dimensionality on the water-repelling properties of carbon nanostructures.