Controlling on Attraction Forces of Water Droplets on Surfaces of Polypropylene Nanocomposites

In this work, Sol gel method was used to prepare polypropylene nanocomposites; some different types of the nanoparticles (clay, ZnO, SiO 2 and TiO 2 ) and different concentration (1, 5 and 10 wt%) were used to control on the attraction forces of water droplets on surfaces of polypropylene nanocomposites. The prepared polypropylene nanocomposites were characterized by FTIR, SEM, dielectric constant, contact angle, wetting energy, spreading coefficient and work of adhesion measurements. Experimental results deduced that clay and ZnO nanoparticles reduce the dielectric constant of polypropylene, while SiO 2 and TiO 2 increase this value. It has been reported that the wettability of the prepared nanocomposites is reduced by increasing certain nanoparticles ratio, which indicate the ability of the obtained nanocomposites for packaging and battery cases applications.