Structure-morphology-mechanical properties relationship of some polypropylene/lignocellulosic composites

Elena Pǎrpǎriţǎ, Raluca Nicoleta Darie, Carmen Mihaela Popescu, Md Azhar Uddin, Cornelia Vasile

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Natural lignocellulosic materials have an outstanding potential as thermoplastic reinforcement. Polypropylene composites were prepared using different types of lignocellulosic materials by melt blending of 70 wt% polypropylene (PP) and 30 wt% biomasses. The specimens werefirstly evaluated for structural and morphological properties by infrared spectroscopy, X-ray diffraction, scanning electron and polarized optical microscopy. Depending on the biomass type, there were evidenced some particular shifts of the infrared bands and also crystallinity changes. An increase in crystallinity is explained by nucleating agent role of biomass. The morphological changes are directly related to variation in mechanical and rheological properties, an increase in Young modulus, melt viscosity and storage and loss moduli being recorded.

Original languageEnglish
Pages (from-to)763-772
Number of pages10
JournalMaterials and Design
Volume56
DOIs
Publication statusPublished - Apr 2014

Keywords

  • Composites
  • Lignocellulosic materials
  • Polypropylene
  • Structural-morphological-mechanical-rheological properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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