Cellulose microfibrils bionanocomposites. Mechanical and rheological properties

A. Retegi, A. Arbelaiz, P. Gañán, K. La Caba, I. Mondragon

Research output: Chapter in Book/Report/Conference proceedingConference and proceedingspeer-review

1 Scopus citations

Abstract

The objective of this study is the development of bionanocomposites using cellulose microfibrils (CMF) as nanoreinforcement in two different biopolymers: poly(ethylene oxide) (PEO) and poly(vinyl butyral) (PVB). Nanocomposites were prepared using two different dispersion methods: dispersion in solvent and melt-extrusion. In order to study the state of dispersion, rheological, morphological and mechanical characterization were carried out. Rheological and morphological analysis showed that high dispersion of CMF was obtained though small differences were observed. Rheological results showed the formation of a CMF network at the rheological percolation (1.5-2 wt% CMF). Mechanical properties were also influenced by the presence of CMF, increasing with their content in the bionanocomposites.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
Subtitle of host publicationFrom Green Composites to Aerospace"
PublisherInternational Committee on Composite Materials
ISBN (Print)9784931136052
StatePublished - 2007

Publication series

NameICCM International Conferences on Composite Materials

Keywords

  • Biocomposites
  • Cellulose microfibrils
  • Nanocomposites
  • Rheology

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