The aim of this article is to investigate the influence of filler content and temperature on the rheological, mechanical, and thermal properties of wood flour polypropylene composites (WPCs). Testing WPCs at high temperatures and percentages of filler is extremely challenging because of reduced linear viscoelastic region, high viscosity, and degradation. In this work, a complete characterization of WPCs with different filler percentages (0–70 wt%) has been made. Rheological tests are performed at 170°C for the WPCs and in the 170–200°C range for neat polypropylene. A single master curve is obtained using two shift factors that can be described by a modified Eilers model and a Williams-Landel-Ferry equation. This master curve, fitted with a Carreau-Yasuda model, can be very useful for predicting the viscosity of WPCs at temperatures that are typically used during processing and for any percentage of filler. POLYM. COMPOS., 37:3460–3473, 2016. © 2015 Society of Plastics Engineers.

Rheological and mechanical characterization of polypropylene-based wood plastic composites

MAZZANTI, Valentina
Primo
;
MOLLICA, Francesco
;
2016

Abstract

The aim of this article is to investigate the influence of filler content and temperature on the rheological, mechanical, and thermal properties of wood flour polypropylene composites (WPCs). Testing WPCs at high temperatures and percentages of filler is extremely challenging because of reduced linear viscoelastic region, high viscosity, and degradation. In this work, a complete characterization of WPCs with different filler percentages (0–70 wt%) has been made. Rheological tests are performed at 170°C for the WPCs and in the 170–200°C range for neat polypropylene. A single master curve is obtained using two shift factors that can be described by a modified Eilers model and a Williams-Landel-Ferry equation. This master curve, fitted with a Carreau-Yasuda model, can be very useful for predicting the viscosity of WPCs at temperatures that are typically used during processing and for any percentage of filler. POLYM. COMPOS., 37:3460–3473, 2016. © 2015 Society of Plastics Engineers.
2016
Mazzanti, Valentina; Mollica, Francesco; El Kissi, N.
File in questo prodotto:
File Dimensione Formato  
Mazzanti_et_al-2016-Polymer_Composites.pdf

solo gestori archivio

Descrizione: Full text editoriale
Tipologia: Full text (versione editoriale)
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 989.31 kB
Formato Adobe PDF
989.31 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
RheologicalandmechanicalcharacterizationofPP-basedWoodPlasticComposites.pdf

accesso aperto

Descrizione: Pre print
Tipologia: Pre-print
Licenza: PUBBLICO - Pubblico con Copyright
Dimensione 1.3 MB
Formato Adobe PDF
1.3 MB Adobe PDF Visualizza/Apri

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2366908
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 163
  • ???jsp.display-item.citation.isi??? 47
social impact