Effect of Nano Clay on Properties of Nanocomposites Based on EVA for Film Packaging Applications

The concept of nanoscale reinforcement provides opportunity for synthesis of polymer materials with unique properties. Behaviors of EVA nanocomposites containing nanofillers, such as nanoclay (Cloisite®30B) were investigated. Samples were prepared with the nanoclay content 1, 3 and 5 wt % and their mechanical properties such as tensile strength, tensile modulus have been considered. So O2 permeablity and optical transparency test have also been done. Wide Angle X-Ray Diffraction (WAXD) and Transmission Electron Microscopy (TEM) were in support of the formation of partially delaminated nanocomposite material. TEM images confirmed that the nanocomposites possessed a high level homogeneity resulted from a sufficient dispersion of nanoparticles in the resin matrix. The results also indicated that tensile test of the nanocomposites was significantly influenced by the VA content. O2 Permeability decreases with increasing clay. Also optical transparency is seen that one sample has the maximum haze and minimum gloss.