Testing the PTT Rheological Model for Extrusion of Virgin and Composite Materials in View of Enhanced Conductivity and Mechanical Recycling Potential

One of the challenges for manufacturing processes polymeric parts is dedicated control composite melt flow. In present work, predictive capability Phan-Thien-Tanner (PTT) viscoelastic model evaluated in relation to extrudate swell from slit dies at 200 °C, considering polypropylene and graphite filler, applying ANSYS Polyflow software. It shown that sufficiently low filler amounts (below 10%; volumetric) PTT accurately reflects interactions, but higher too large swellings are predicted. can although obtain insights on swelling height direction consider a broader range areas compared virgin materials. Guidelines also provided future experiments development, including omission no-slip process boundary condition.