Non-wettable surfaces with high water contact angles (WCAs) and facile sliding of drops, called superhydrophobic or ultrahydrophobic, have received tremendous attention in recent years, both in academia and in industrial applications. These surfaces are of special interest because properties such as antisticking, anti-contamination and self-cleaning are expected. During last half century, many methods of imparting hydrophobic character to cotton have been developed that includes the use of hydrophobic polymer films and attachment of hydrophobic monomers via physical or chemical sorption processes.
The main components of an emulsion polymerization system are the monomer(s), dispersing medium, emulsifier and water soluble initiator. The dispersing medium is usually water, in which the various components are dispersed by means of the emulsifier.
Approaches to Produce Hydrophobic Surfaces:
Techniques to make super hydrophobic surfaces can be simply divided into two categories:
· By surface modification i.e by making a rough surface
· By the application of chemical finishes.
The main challenge in this area is to achieve a durable non-fluoro hydrophobic finish with better latex stability. Based on the above challenges the main aim of this study would be to prepare a durable superhydrophobic finish and a suitable application method on to textiles.