Multiprocessible and Durable Superhydrophobic Coating Suspension Enabling Printed Patterning, Internal Tubular Coating, and Planar Surface Coating

Abstract

In order to realize the commercial viability of superhydrophobic surfaces, excellent superhydrophobicity, durability, and multiprocessibility are key aspects. A number of studies regarding improved superhydrophobicity and durability have been extensively reported, while promising strategies aimed at establishing a multiprocessible superhydrophobic coating suspension have been scarcely suggested. In this study, we suggest a facile method that allows the fabrication of the superhydrophobic surface that complies with superhydrophobicity, durability, and multiprocessibility simultaneously. This was achieved by properly engineering the formulation of the coating suspension and coating process. The coating suspension developed could be universally available to a wide range of coating processes including spraying, spin coating, brushing, flow coating, and even inkjet printing. This multiprocessible coating suspension led to facile integration of the superhydrophobic surface, regardless of the material and geometry of substrates. The superhydrophobic surface integrated into glass, the inner wall of tubing, and a printed pattern showed excellent superhydrophobic properties and decent durability. In particular, the patterned superhydrophobic surface exhibited the strong adsorption of fluorescence molecules, which is highly desirable for bioanalysis applications. By accompanying the multiprocessibility, our coating method may be able to facilitate the commercial viability of the superhydrophobic surface and expand its applications in various research fields as well.

Review on 3D Printing of Bioinspired Structures for Surface/Interface Applications

“…[131] The first type of method includes self-assembly or spraying, brush coating, etc., in which micron-nano TiO 2 , SiO 2 , and other particles are mixed into the coating to construct micro-nano structure, and then lubricating liquid is filled to obtain super-slippery surface. [132][133][134] The advantage of this type of method is that it can ignore the shape and size of the substrate, but it has the drawback of poor binding force. The second method is to directly construct the microstructure on the surface of the substrate by etching printing and filling it with lubricant to form the super-slippery surface.…”

A Sustainable Superhydrophobic and Photothermal Coatings for Anti-Icing Application on Concrete with a Simple Method for CNTs/SiO2 Modification

“…Kwak et al conducted composite modifications on silicon dioxide and titanium dioxide, employing various processing methods to apply superhydrophobic coatings with multiple micro-nano structures. These coatings are versatile and demonstrate exceptional durability on a range of substrate surfaces [20]. Lahiri et al employed Polydimethylsiloxane (PDMS) as a binder to affix H 3 BO 3 and SiO 2 nanoparticles to the substrate surface, resulting in a highly durable superhydrophobic coating.…”

Enhancing mechanical, thermal property and flame retardancy of optical polythiourethane with self‐assembly phosphazene nanoparticles

“…Optical coatings are widely used in novel materials such as electronic products, [ 1–5 ] architectural coatings [ 6–8 ] and lithography printing [ 9–12 ] due to their advantages of low processing energy consumption, high efficiency. Especially, in view of the high requirements of materials, optical coatings with high performance such as high refractive index, high mechanical property and good flame retardancy have recently attracted increasing research attention.…”