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Article

An Additive Model to Predict the Rheological and Mechanical Properties of Polypropylene Blends Made by Virgin and Reprocessed Components

1
Department of Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
2
INSTM, Via Giusti 9, 50125 Firenze, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Martin Schlummer
Recycling 2021, 6(1), 2; https://doi.org/10.3390/recycling6010002
Received: 19 November 2020 / Revised: 16 December 2020 / Accepted: 30 December 2020 / Published: 2 January 2021
(This article belongs to the Special Issue Polymer Recycling)
In this work, an additive model for the prediction of the rheological and mechanical properties of monopolymer blends made by virgin and reprocessed components is proposed. A polypropylene sample has been reprocessed more times in an extruder and monopolymer blends have been prepared by simulating an industrial process. The scraps are exposed to regrinding and are melt reprocessed before mixing with the virgin polymer. The reprocessed polymer is, then, subjected to some thermomechanical degradation. Rheological and mechanical experimental data have been compared with the theoretical predictions. The results obtained showed that the values of this simple additive model are a very good fit for the experimental values of both rheological and mechanical properties. View Full-Text
Keywords: monopolymer blends; additive model; polypropylene; reprocessing monopolymer blends; additive model; polypropylene; reprocessing
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MDPI and ACS Style

La Mantia, F.P.; Mistretta, M.C.; Titone, V. An Additive Model to Predict the Rheological and Mechanical Properties of Polypropylene Blends Made by Virgin and Reprocessed Components. Recycling 2021, 6, 2. https://doi.org/10.3390/recycling6010002

AMA Style

La Mantia FP, Mistretta MC, Titone V. An Additive Model to Predict the Rheological and Mechanical Properties of Polypropylene Blends Made by Virgin and Reprocessed Components. Recycling. 2021; 6(1):2. https://doi.org/10.3390/recycling6010002

Chicago/Turabian Style

La Mantia, Francesco P., Maria C. Mistretta, and Vincenzo Titone. 2021. "An Additive Model to Predict the Rheological and Mechanical Properties of Polypropylene Blends Made by Virgin and Reprocessed Components" Recycling 6, no. 1: 2. https://doi.org/10.3390/recycling6010002

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