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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
(a) Average Variation of Viscosity value @ 190 °C by extrusion batch (compared versus 0 extrusions batch); (b) Viscosity value variation by shear rate [compared 0 extrusions versus 20 extrusions batch] @ 190 °C.