Processing-structure relationship using rheological constitutive equations for immiscible polymer blends

摘要

This works tries to correlate the influence of the thermal and deformation histories that the polymer blend undergoes during its manufacturing on its microstructure. This is done by using a rheological model for polymer blends in the numerical simulation of this deformational field. The applied model is a modification of Bousmina et al in the Grmela's [1] model for two immiscible viscoelastic fluids and allows to obtain the size and shape of the dispersed particle of these heterogeneous systems through the deformational parameters, as shear rate and physical properties, as interfacial tension and viscosity of the polymers.