Bio-based polyurethane reinforced with cellulose nanofibers: A comprehensive investigation on the effect of interface

Karima Benhamou, Hamid Kaddami, Albert Magnin, Alain Dufresne, Azizan Ahmad

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

Novel bio-based polyurethane (PU) nanocomposites composed of cellulose nanofiller extracted from the rachis of date palm tree and polycaprolactone (PCL) diol based PU were prepared by casting/evaporation. Two types of nanofiber were used: cellulose nanofibrils (CNFs) and cellulose nanocrystals (CNCs). The mechanical and thermal properties of the nanocomposite films were studied by DMA, DSC, and tensile tests and the morphology was investigated by SEM. Bionanocomposites presented good mechanical properties in comparison to neat PU. While comparing both nanofillers, the improvement in mechanical and thermal properties was more pronounced for the nanocomposites based on CNF which could be explained, not only by the higher aspect ratio of CNF, but also by their better dispersion in the PU matrix. Calculation of the solubility parameters of the nanofiller surface polymers and of the PU segments portend a better interfacial adhesion for CNF based nanocomposites compared to CNC.

Original languageEnglish
Pages (from-to)202-211
Number of pages10
JournalCarbohydrate Polymers
Volume122
DOIs
Publication statusPublished - 20 May 2015

Fingerprint

Polyurethanes
Nanofibers
Cellulose
Nanocomposites
Mechanical properties
Nanocrystals
Thermodynamic properties
Polycaprolactone
Nanocomposite films
Dynamic mechanical analysis
Aspect ratio
Polymers
Casting
Evaporation
Adhesion
Solubility
Scanning electron microscopy

Keywords

  • Cellulose nanofibers
  • Interface
  • Nanocomposites
  • PCL-based polyurethane
  • Solubility parameters

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Bio-based polyurethane reinforced with cellulose nanofibers : A comprehensive investigation on the effect of interface. / Benhamou, Karima; Kaddami, Hamid; Magnin, Albert; Dufresne, Alain; Ahmad, Azizan.

In: Carbohydrate Polymers, Vol. 122, 20.05.2015, p. 202-211.

Research output: Contribution to journalArticle

Benhamou, Karima ; Kaddami, Hamid ; Magnin, Albert ; Dufresne, Alain ; Ahmad, Azizan. / Bio-based polyurethane reinforced with cellulose nanofibers : A comprehensive investigation on the effect of interface. In: Carbohydrate Polymers. 2015 ; Vol. 122. pp. 202-211.
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