An additive model to predict the rheological and mechanical properties of polypropylene blends made by virgin and reprocessed components

Maria Chiara Mistretta, Francesco Paolo La Mantia, Francesco Paolo La Mantia, Vincenzo Titone, Vincenzo Titone

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Pages (from-to)1-11
Number of pages11
Publication statusPublished - 2021

All Science Journal Classification (ASJC) codes

  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law
  • General Materials Science

Cite this