Experimental and theoretical investigating of elastic modulus of hybrid nano-composite

Enhancement in the mechanical behaviors of thermosets polymeric materials has become one interested tasks for the mechanical production especially by using nano fillers due to its easy and wide use in modern applications. Therefore, in this paper, TiO2 and SiO2 nanoparticles were used to enhance the tensile properties of epoxy. The volumetric ratios (0.5%, 1%, 1.5% and 2%) of nanoparticles were mixed by using mechanical mixer and then using ultrasound mixer then injected to the mold. The hybrid nanocomposites with 50% TiO2 and 50% SiO2 of nanoparticles volume fraction were also fabricated. The tensile strength of the hybrid composites were investigated, also the microstructure images were studied by using the scanning electron microscope (SEM) and the X-ray diffraction devices. In this work, analytical models described the elastic modulus variation of nanocomposites were reviewed and discussed. New two models described the elastic modulus variation of hybrid nanocomposites were proposed. One of the proposed models gave a good agreement with the experimental results of elastic modulus.