Oral
Abstract
Research summary supplied by the authors
Superhydrophobic surfaces have their significant applications due to their water repellency nature and self-cleaning properties. Generally, to create a superhydrophobic surface, fluoro -based compounds are used. In this work, we have developed a sustainable superhydrophobic leather coating using HMDS (Hexamethyldisilazane) modified SiO 2 (Sh) nanoparticles with 3 - aminopropyltriethoxysilane (CA) as a coupling agent to coat acrylic resin (AR) and commercial PU binders onto the leather surface. We tried different combinations of this nanocomposite coatings to achieve superhydrophobic leather surface. Nanocomposite was tried for both base coat and top coat application as well. Contact angle of about 150˚ has been achieved and the leathers exhibited self -cleaning behaviour as well. The fastness properties of the treated leather were tested according to the standard tests and the results showed that the coated material has good adhesion onto the leather surface. Thus, a sustainable superhydrophobic coating has been achieved successfully, which will have several applications including footwear, garment and upholstery applications.