Fig. 4 represents the SEM images of the rubber composites. It can be seen from the images that EG flakes were randomly distributed in the different rubber matrix and the lateral size of the EG was exposed for the loaded rubber composites prepared by melt blending, which indicated moderate interfacial bonding between EG and the rubber matrices. But for the i-MG loaded rubber composites, the microstructure of the fractured surfaces displayed the close contact and high embedding of i-MG flakes with rubber matrices, indicating a good interracial interaction between i-MG and the rubber matrices. SEM images of the EG and i-MG filled rubber compounds showed rough, tortuous fractured surface and broad tear paths. It can be suggested that EG and i-MG sheets were dispersed in the rubber matrix in the presence of CB and changed the crack lines depending on their orientation in the polymer matrices.