Investigation of Morphological and Rheological Properties of PP/SEBS-g-MA Nanocomposite

In recent years, polymer-silicate layered nanocomposites have attracted many attentions due to their outstanding properties than the conventional composites [1].PP is a semi-crystalline polymer which has easy processability and versatility of applications. However, its applicationis somewhat limited because of its poor impact resistance [2]. Blending PP with Maleated styrene-ethylene-buthylenestyrene (SEBS-g-MA) triblock copolymer as a thermoplastic elastomer (TPE) can improve impact toughness of PP, but its strength reduces. On the other hand, addition of nanoclay canprovide the required strength of PP, but decreases its impact strength. However, the balance between the stiffness andtoughness of PP is achieved by controlling the amounts of elastomer and clay [3]. In this study, the rheological properties of PP/SEBS-g-MAnanocomposites were investigated by mean of a rheometric mechanical spectrometer (RMS) and a melt flow index apparatus (MFI).