Production hydrophobic sand based on soot

Abstract

Superhydrophobic materials have recently attracted attention from both academic and industrial circles because of their importance in fundamental research and potential industrial applications such as bio-surfaces, anti-biofouling, transparent and antireflective superhydrophobic coatings, structural color, fluidic drag reduction, enhancing water supporting force, controlled transportation of fluids, superhydrophobic valves, battery and fuel cell applications, prevention of water corrosion and oil-water separation corrosion protective coatings, preventing adhesion of water and snow to windows or antennas, self-cleaning, en-hancing buoyancy, and coating films for electronic devices. The first appeared in the construction of water-proofing about 40 years ago. They were mostly silicone-based fluid polyhydro siloxane, etil silikonata sodium, sodium methyl siliconate. Since these formulations have certain negative qualities, they are now virtually disappeared from the market of construction materials. Relatively cheap raw material soot has hydrophobic properties and can be used as a filler in the creation of hydrophobic materials and coatings. The main disadvantage of soot is that its interaction with the water initiates the mobility of carbon nanos-tructure components and new structural formations lead to loss of hydrophobic properties. However, if the soot to obtain, under certain conditions, combustion of fuel, it can maintain hydrophobic properties after exposure to water, and such soot may be further used to impart water resistance to various materials. In recent publications appeared in public a lot of work related with synthesis hydrophobic carbon surfaces in flames. In this paper was created hydrophobic sand based on soot having superhydrophobic properties synthesized by burning of polyethylene waste.