Rheological Evaluation of Melt Blown Polymer Melt

摘要

In this work, shear and uniaxial extensional viscosities of polypropylene melt blown sample with melt flow rate equal to 450 g/10min have been determined in wide deformation rate range by using capillary rheometry and novel orifice die design and the capability of recently proposed generalized Newtonian model to describe the measured experimental data has been tested.