The effect of interphase on the elastic modulus of polymer based nanocomposites

The elastic modulus of interphase in polymer based nanocomposites is investigated. A new three-dimensional unit cell model has been developed for modeling three constituent phases including particle, interphase and matrix. The elastic modulus of the interphase as a function of radius is then evaluated with the help of mathematical models. The average value of interphase elastic modulus is defined and the effect of interphase thickness and particle and matrix elastic modulus on interphase is investigated.