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RESEARCH PRODUCT
Rheological, mechanical and morphological characterization of monopolymer blends made by virgin and photo-oxidized polypropylene
Maria Chiara MistrettaVincenzo TitoneFrancesco Paolo La Mantiasubject
Materials scienceAccelerated weathering Additive model Monopolymer blend Polypropylene02 engineering and technologyManagement Monitoring Policy and Law010402 general chemistry01 natural sciencesViscositychemistry.chemical_compoundRheologyGE1-350General Materials ScienceComposite materialadditive modelWaste Management and Disposalaccelerated weatheringchemistry.chemical_classificationPolypropylenemonopolymer blendPolymer021001 nanoscience & nanotechnology0104 chemical sciencesCharacterization (materials science)Environmental sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialichemistryDegradation (geology)0210 nano-technologypolypropylenedescription
In this work, monopolymer blends of virgin polypropylene and photo-oxidized polypropylene were prepare and characterized. The polypropylene samples were subjected to accelerated ageing to simulate the effects of outdoor exposure of polypropylene. After exposure, samples were pelletized and mixed with the same virgin polymer. The rheological, mechanical and morphological characterization was conducted on both the polymers and the blends. Both viscosity and mechanical properties decrease with increases in the content of recycled, photo-oxidized components and of the level of degradation of this component. In addition, the experimental data were compared with a model that takes into account both the effect of the change of the molecular weight and of the presence of oxygenated groups.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-07-16 |