Preparation and Surface Modification of Silica Nanoparticles for Superhydrophopic Coating

Abstract

Silica  nanoparticles are well-known to be one of the multifunctional inorganic compounds which are widely used in medical applications. The aim of this study is to prepare the particles of nano silica oxide with particle size ranging from 20-25 nm. In the present study, surface modification of Silica nanoparticles was performed, and influence of modification on the structure and morphological properties was investigated. The resulting  nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM).

 Silica nanoparticles with the average diameter of about 20 nm were modified with oleic acid, as coupling agents, in order to modify their surface properties and make them more waterproof dispersible in the organic area. Among the results is that the  surface modification of the   Silica nano-particles leads to more dispersion in the organic medium which indicates better organic synthesis.One of the results obtained,is that modified silica-nanoparticles can be used effectively in environmental and safety applications and can be used in future medical applications as wound stick that prevent water from reaching the wound and then prevent  an inflamation.