Reprocessing of PLA/graphene nanoplatelets nanocomposites
| Autor: | Roberto Scaffaro, Maria Chiara Mistretta, Fiorenza Sutera, Luigi Botta |
|---|---|
| Přispěvatelé: | Botta, L., Scaffaro, R., Sutera, F., Mistretta, M. |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Polymers and Plastics Intrinsic viscosity Plastics extrusion 02 engineering and technology 010402 general chemistry 01 natural sciences Article Poly(lactic acid) (PLA) lcsh:QD241-441 Exfoliated graphite nano-platelets Rheology lcsh:Organic chemistry nanocomposites Graphene nanoplatelets (GnP) Recycling Nanocomposite recycling graphene nanoplatelets (GnP) poly(lactic acid) (PLA) General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Settore ING-IND/22 - Scienza E Tecnologia Dei Materiali Chemical engineering Nanocomposites Particle Degradation (geology) 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | Polymers Polymers; Volume 10; Issue 1; Pages: 18 Polymers, Vol 10, Iss 1, p 18 (2017) |
| Popis: | This work reports a study on the effect of multiple reprocessing on the properties of poly(lactic acid) (PLA) filled with graphene nanoplatelets (GnP) compared to the melt reprocessed neat polymeric matrix. In particular, morphological, X-Ray Diffraction and Micro-Raman analyses, intrinsic viscosity measurements, thermal, rheological and mechanical tests were carried out on materials reprocessed up five times by means of a single screw extruder. The results indicated that the presence of GnP decreased the degradation rate as a function of the reprocessing cycles in comparison with the neat PLA that, on the contrary, showed a more drastic reduction of the molecular weight. Moreover, the reprocessing improved the particle dispersion and reduced the presence of GnP aggregates. |
| Databáze: | OpenAIRE |
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