The interparticle interactions originate from electrostatic and Van der Waals forces that can lead to agglomerates,With increasing strain amplitude,de-agglomeration and breakdown of such structures may occur,leading to reduction in the dynamic storage modulus that is called Payne effect in filled elastomers,the disruption of networks with increasing shear rate leads to earlier and more effective shear thinning behavior in nanocomposites with higher filler loading and smaller particle size.[1] The Payne effect,i.e.the decrease of the modulus with increasing strain amplitude,is generally explained in terms of the breakdown process occurring in the agglomerates.[2] Figure.1 show G as a function of strain for the compounds containing nanosilica,respectively.It can be seen that there exists strong strain dependence of G.G of both the unfilled POE and the filled compounds remains constant until strain reaches a critical strain amplitude(γc)(the critical strain is separating the linear from nonlinear regime),then decreases rapidly at high strain amplitudes,and the γc value decreases with increasing nanosilica content.The most common interpretation to this Payne effect is based on the dynamical processes of breakage and reformation of the filler network.The gradual reduction in G of the neat SSBR at strains above γc=20%is typical behavior for unfilled linear polymer melts.