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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 Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
SEM micrographs of PP processed with different injection speeds: (a) 80 cm3/s, (b) 100 cm3/s, (c) 120 cm3/s; SEM micrographs of PS processed with different injection speeds: (d) 80 cm3/s, (e) 100 cm3/s, (f) 120 cm3/s.