Chemistry and technology of chemical fibres (spinnability and rheological properties of melts of polyamide 66-polyethylene terephthalate polymer blends

摘要

A method is proposed for describing the rheological properties of polyamide 66-polyethylene terephthalate during extrusion; it allows obtaining results based on theoretical models which are equal to the experimental data.Refinement of the results of the calculation makes it necessary to consider the nonadditivity of the change in parameters B and n,determined by the disperse structure of the material,on the rheological and thermophysical properties of the blend.