Recent progress in the preparation, properties and applications of superhydrophobic nano-based coatings and surfaces: A review

Abstract

With the recent progress in nanotechnology and material engineering, nano-based coatings have become multifunctional, smarter, efficient, versatile and durable. Superhydrophobic coatings are an important class of the smart coating family, which has gained recognition in coating science over the last few years. The uniqueness of superhydrophobic coatings arises from the various phenomenal innovations, and its development is expected to continue in the next decades. . The bioinspired superhydrophobic surfaces are commonly obtained by designing a double-scale structure by using nanotechnology, followed byis the addition of water repellent compounds. It lacks an overview article describing the recent progress in superhydrophobic coatings and surfaces. In this perspective article, various fundamental aspects of wettability and related phenomena are discussed. We then present and compare the existing methods for superhydrophobic coating preparation. Superhydrophobic properties of superhydrophobic coatings such as self-cleaning, anti-icing, anti-fouling, and anti-bacterial features were then introduced. The review also discusses various superhydrophobic technological breakthroughs and future trends in the preparation and application of these materials.

Multifunctional phase change microcapsules based on graphene oxide Pickering emulsion for photothermal energy conversion and superhydrophobicity

“…As we all know, a hydrophilic surface has a water CA within 0° <θ≤ 90°. A hydrophobic surface has a CA within 90° <θ≤ 150°, and when the CA is within 150° <θ≤ 180°, the latter is called the superhydrophobic surface . By water CA measurements from Figure A1‐D1, the water CA measurement indicates that the CA of SA@GO/MF phase change microcapsules is increased with the increase of GO contents.…”

“…A hydrophobic surface has a CA within 90 <θ≤ 150 , and when the CA is within 150 <θ≤ 180 , the latter is called the superhydrophobic surface. 44 By water CA measurements from Figure 8A1-D1, the water CA measurement indicates that the CA of SA@GO/MF phase change microcapsules is increased with the increase of GO contents. More significantly, microPCMs-15 displays a water CA of 160.2 , which possesses superhydrophobic behaviors.…”

Preparation of superhydrophilic nanosilica/polyacrylate hard coatings on plastic substrate for antifogging and frost‐resistant applications

“…[1][2][3][4][5][6][7][8][9][10] Good performance of such AFF coatings on glass and metals (Al and Cu) has been achieved. This phenomenon is known as fogging or frosting depending on whether the surface temperature is lower than the dew or frost point of water.…”

“…This phenomenon is known as fogging or frosting depending on whether the surface temperature is lower than the dew or frost point of water. [4][5][6][7][8][9][10] In addition to superhydrophobic AFF coatings, there are also many antifog/antifrost coatings made of superhydrophilic materials. It causes inconveniences, damages, and even triggers hazardous situations.…”

Preparation of organic–inorganic hybridized dual‐functional antifog/antireflection coatings on plastic substrates

“…In addition to AR, antifogging (AF) is another useful property for optical coatings to acquire, particularly when the coating surface is susceptible to moisture condensation. Many researches pertaining to this subject have been reported and reviewed . Over the last decades, dual‐functional antifogging/antireflection (AFAR) coating techniques were widely developed .…”