Dispersion of powdered rubber in modified PP is studied by TEM and SEM. Meantime, the effect of powdered rubber on crystallization of PP is studied by DSC.

But silica disperse in rubber difficult, although silane coupling agent has useful function in the white silica's dispersion and reduce the Mooney viscosity, but it also increased the elongation.

The effects of different rotor configuration on carbon black dispersion and the mechanical properties of rubber compound were studied.