Rheological Behaviour of the Crosslinkable Polyethylene and EPDM Rubber with the Help of a Torque Rheometry

It is very much unusual to find a single polymer is being used without being blended with other polymers. The rheological parameters of the blends dictate the processibility of the blend in the operating conditions. Rheology of the polymer blend differ widely from the single components depending on the type and phase composition. Coran suggested that in the plastic/rubber blends the shear modulus depend on the viscosity of the rubber phase and crystallization of the plastic phase. According to Folt the flow behaviour of the blend depend on the heat history and the morphology.