6533b82efe1ef96bd1293259

RESEARCH PRODUCT

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

Vincenzo TitoneMaria Chiara MistrettaFrancesco Paolo La Mantia

subject

0209 industrial biotechnologyMaterials scienceAdditive model Monopolymer blends Polypropylene ReprocessingPlastics extrusionMixing (process engineering)02 engineering and technologyManagement Monitoring Policy and Lawchemistry.chemical_compound020901 industrial engineering & automationRheologyGeneral Materials ScienceComposite materialAdditive modelWaste Management and Disposaladditive modelreprocessinglcsh:Environmental sciencesPolypropylenechemistry.chemical_classificationlcsh:GE1-350monopolymer blendsPolymer021001 nanoscience & nanotechnologySettore ING-IND/22 - Scienza E Tecnologia Dei Materialichemistry0210 nano-technologypolypropylene

description

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.

10.3390/recycling6010002http://dx.doi.org/10.3390/recycling6010002