Integrated CNTs/SiO₂ nano-additives on SBS polymeric superhydrophobic coatings for self-cleaning

Abstract

Styrene-butadiene-styrene triblock copolymers were blended with carbon nanotubes (CNTs)/ SiO 2 nano-additives to fabricate superhydrophobic coatings for self-cleaning. When the loading of nano-additives is 20 wt-% and the mass ratio of CNTs to SiO 2 is 4:1, the nanocomposite coatings show the best self-cleaning property with water contact angle of 152.5°and contact angle hysteresis of 3.2°. In addition, the superhydrophobic coatings exhibited good thermal stability and high mechanical stability. The superhydrophobic coatings might be extended to the design of novel superfloating and drag-reducing aquatic devices. Owing to its flexibility and simplicity, the method is not only a facile and inexpensive way to achieve the lotus effect but could also create coatings with high values in practical application.

Recent Developments of Superhydrophobic Surfaces (SHS) for Underwater Drag Reduction Opportunities and Challenges

“…The coating prepared by electrostatic spraying on stainless steel and other materials after 200° of calcination achieved excellent superhydrophobicity and frictional resistance. Chen et al [113] used silica particle silica sols and carbon nanotubes to shape the surface structure of polymer coatings. First, Styrene-butadiene-styrene (SBS) was dissolved in toluene and then mixed with silica sol and carbon nanotubes.…”

Preparation of a SiOx coating with a lot of micro–nanometre wrinkles on the polyimide surface and its resistance to corrosion

“…In order to evaluate the performances of coating, the following evaluation experiments were conducted [16,17].…”

Fabrication of Robust Waterborne Superamphiphobic Coatings with Antifouling, Heat Insulation, and Anticorrosion

“…Due to excellent repellency performance for water and oil, − superamphiphobic coatings have wide application prospects in self-cleaning, − drag reduction, , anti-graffiti, − anticorrosion, − anti-icing, − petroleum pipeline, etc. Superamphiphobic surfaces with extremely excellent properties need to possess low surface energy and a hierarchical roughness structure. , Water-based superamphiphobic coatings are environmentally friendly and have attracted many researchers’ attention. , Nevertheless, the dispersion of hydrophobic substances in water is poor, which is not conducive to the performance of the coatings .…”

“…Due to excellent repellency performance for water and oil, 1 − 4 superamphiphobic coatings have wide application prospects in self-cleaning, 5 − 9 drag reduction, 10 , 11 anti-graffiti, 12 − 14 anticorrosion, 15 − 18 anti-icing, 19 − 21 petroleum pipeline, 22 etc. Superamphiphobic surfaces with extremely excellent properties need to possess low surface energy and a hierarchical roughness structure.…”