Cited by 791Advanced Cellulose Research StudiesNatural Fiber Reinforced CompositesNanocomposite Films for Food Packaging

Cellulose whiskers versus microfibrils: influence of the nature of the nanoparticle and its surface functionalization on the thermal and mechanical properties of nanocomposites

Siqueira, Gilberto, Bras, Julien, Dufresne, Alain·2009·Biomacromolecules

Abstract

In the present work, nanowhiskers and microfibrillated cellulose (MFC) both extracted from sisal were used to reinforce polycaprolactone (PCL). We report the influence of the nanoparticle's nature on the mechanical and thermal properties of the ensuing nanocomposites. The surface of both the nanoparticles was chemically modified to improve their compatibilization with the polymeric matrix. N-Octadecyl isocyanate (C18H37NCO) was used as the grafting agent. PCL nanocomposite films reinforced with sisal whiskers or MFC (raw or chemically modified) were prepared by film casting. The thermal behavior (Tg, Tm, Tc, and degree of crystallinity) and the mechanical properties of the nanocomposites in both the linear and the nonlinear range were determined using differential scanning calorimetry (DSC), dynamical mechanical analysis (DMA), and tensile tests, respectively. Significant differences were reported according to the nature of the nanoparticle and amount of nanofillers used as reinforcement. It was also proved that the chemical treatment clearly improves the ultimate properties of the nanocomposites.

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Crossref · 10.1021/bm801193d

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  • The addition of cellulose nanofibers to polymer matrixes culminates in composites with improved mechanical, thermal, and permeability properties.

    “The addition of CNFs to polymer matrixes culminates in composites with improved mechanical, thermal, and permeability properties, providing both economic and strategic benefits (Siqueira et al., 2009).”

    From Cellulose nanofibers produced from banana peel by chemical and enzymatic treatment (2014) · cites this paper as Siqueira et al., 2009

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Authors
Siqueira, G., Bras, J., & Dufresne, A.
Affiliations
Institut polytechnique de Grenoble (FR)
Corresponding author
Dufresne, Alain
Venue
Biomacromolecules
Published
2008-12-29
Volume
10
Issue
2
Pages
425-432
ISSN
  • 1525-7797 (ISSN-L)
  • 1526-4602
OpenAlex
W2063267424
Cited by
791
References
42
Citations by year
2026: 9 · 2025: 8 · 2024: 14 · 2023: 28 · 2022: 36 · 2021: 39 · 2020: 30 · 2019: 53 · 2018: 62 · 2017: 80 · 2016: 76 · 2015: 63 · 2014: 75 · 2013: 63 · 2012: 58
FWCI
13.93
Type
journal article
Language
en
Open access
closed
Locations
  • Biomacromolecules (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Advanced Cellulose Research Studies
  • Physical Sciences › Materials Science › Polymers and Plastics › Natural Fiber Reinforced Composites
  • Physical Sciences › Materials Science › Biomaterials › Nanocomposite Films for Food Packaging
Keywords
microfibrillated cellulose, polycaprolactone, polymer nanocomposites, surface functionalization, thermal properties, mechanical properties, crystallinity, tensile properties, nonlinear viscoelasticity, natural fiber reinforcement
MeSH terms
Cellulose, Materials Testing, Polyesters, Temperature, Microfibrils, Nanoparticles, Nanocomposites, Mechanical Phenomena

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