عنوان مقاله :
Highly Crystalline Graphite Nano Platelet/Epoxy Nano-composites; Mechanical and Electrical Properties
Author/Authors :
M. M Shokrieh Composites Research Laboratory - Center of Excellence in Experimental Mechanics and Dynamics - School of Mechanical Engineering - Iran University of Science and Technology, Tehran , H Shahverdi bMaterials Science and Engineering Department - Faculty of Engineering - Tarbiat Modares University, Tehran , F Vahedi bMaterials Science and Engineering Department - Faculty of Engineering - Tarbiat Modares University, Tehran , M Esmkhani Composites Research Laboratory - Center of Excellence in Experimental Mechanics and Dynamics - School of Mechanical Engineering - Iran University of Science and Technology, Tehran
كليدواژه :
Highly crystalline graphite nano platelet , Nanocomposites , Mechanical properties , Electrical properties , Agglomeration , Percolation threshold
چكيده لاتين :
In this study, mechanical properties of epoxy nano composites with highly crystalline graphite nano platelets (GNP) at different contents 0.05, 0.1, 0.25, 0.5 and 1% dispersed in epoxy resin with different ultra-sonication times were considered. A significant enhancement in mechanical properties was obtained with a 0.1% loading of GNP, such as a 10% increase in Young's modulus and 14% in tensile strength. As the amount of the GNP increased, mechanical properties decreased, even below the neat resin tensile strength in 1% GNP loading and the electrical resistivity was decreased with the addition of filler content. Thus, morphology of fracture surface was investigated by FESEM. It was observed that agglomerations lead to decrease in mechanical properties.
