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From paper to nanopaper: evolution of mechanical and physical properties

In the present work the evolution of physical and mechanical properties of papers and nanopapers is studied. Handsheets made of eucalyptus fibres reinforced with 0, 25, 50, 75 and 100 wt% of nanofibrillated cellulose (NFC) content were fabricated using a Rapid Köthen-like equipment. The obtained papers and nanopapers were physical- and mechanically-characterized. The results showed a significant increase in density and a reduction of porosity in the samples during their transition from paper to nanopaper; besides, nanopapers were more transparent and smoother than normal papers. These physical changes where more evident with increasing amounts of NFC. Regarding mechanical properties, nanopapers with a 100 wt% content of NFC improved their strength and rigidity in 228 and 317 %, respectively, in comparison with normal papers. The evolution of strength and rigidity from paper to nanopaper was linear in relation to the amount of NFC, which means that the ultimate tensile strength was mainly dependant on nanofibril failure

The authors are thankful to the Spanish Ministry of Science and Innovation for the financial support given by the projects CTQ2010-21660-C03-03 and CTM2011-28506-C02-01 to develop this study

© Cellulose, 2014, vol. 21, núm. 4, p. 2599-2609

Springer Verlag

Author: González Tovar, Israel
Alcalà Vilavella, Manel
Chinga Carrasco, G.
Vilaseca Morera, Fabiola
Boufi, Sami
Mutjé Pujol, Pere
Date: 2014
Abstract: In the present work the evolution of physical and mechanical properties of papers and nanopapers is studied. Handsheets made of eucalyptus fibres reinforced with 0, 25, 50, 75 and 100 wt% of nanofibrillated cellulose (NFC) content were fabricated using a Rapid Köthen-like equipment. The obtained papers and nanopapers were physical- and mechanically-characterized. The results showed a significant increase in density and a reduction of porosity in the samples during their transition from paper to nanopaper; besides, nanopapers were more transparent and smoother than normal papers. These physical changes where more evident with increasing amounts of NFC. Regarding mechanical properties, nanopapers with a 100 wt% content of NFC improved their strength and rigidity in 228 and 317 %, respectively, in comparison with normal papers. The evolution of strength and rigidity from paper to nanopaper was linear in relation to the amount of NFC, which means that the ultimate tensile strength was mainly dependant on nanofibril failure
The authors are thankful to the Spanish Ministry of Science and Innovation for the financial support given by the projects CTQ2010-21660-C03-03 and CTM2011-28506-C02-01 to develop this study
Format: application/pdf
ISSN: 0969-0239 (versió paper)
1572-882X (versió electrònica)
Document access: http://hdl.handle.net/10256/11380
Language: eng
Publisher: Springer Verlag
Collection: MICINN/PN 2012-2014/CTM2011-28506-C02-01
MICINN/PN 2011-2013/CTQ2010-21660-C03-03
Reproducció digital del document publicat a: http://dx.doi.org/10.1007/s10570-014-0341-0
Articles publicats (D-EQATA)
Is part of: © Cellulose, 2014, vol. 21, núm. 4, p. 2599-2609
Rights: Tots els drets reservats
Subject: Pasta de paper
Wood-pulp
Fibres de cel·lulosa
Cellulose fibers
Materials nanoestructurats -- Propietats mecàniques
Nanostructured materials -- Mechanical properties
Title: From paper to nanopaper: evolution of mechanical and physical properties
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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