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Aspects on nanofibrillated cellulose (NFC) processing, rheology and NFC-film properties
RISE, Innventia. RISE - Research Institutes of Sweden, Bioeconomy.
2017 (English)In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 29, 68-75 p.Article in journal (Refereed) Published
Abstract [en]

This communication summarizes the salient features and mechanisms in high-pressure homogenization of wood fibres in order to make nanofibrillar cellulose (NFC). The energy-efficiency of delamination of fibres and the clogging tendency of fibres in high-pressure homogenizers/microfluidizers during delamination are critical and ways to alleviate these problems are reviewed. It is shown that the mechanical properties of NFC-films can be estimated from the Page equation. Usually, the evolution of the tensile strength properties of NFC-films increases with the extent of film delamination to reach a saturation value, which can be deduced from first principles using the Page equation. Finally, the evolution of the rheological features of NFC-gels and the barrier properties are reviewed and the estimation the nanofraction content in NFC-gels is being discussed.

Place, publisher, year, edition, pages
2017. Vol. 29, 68-75 p.
Keyword [en]
Nanofibrillated cellulose (NFC); Nanocellulose; Microfibrillated cellulose; Homogenization;Film strength;Rheology;Characterization;Gas barrier;Oxygen permeability
National Category
Paper, Pulp and Fiber Technology Nano Technology
Identifiers
URN: urn:nbn:se:ri:diva-29293DOI: 10.1016/j.cocis.2017.02.005Scopus ID: 2-s2.0-85015363820OAI: oai:DiVA.org:ri-29293DiVA: diva2:1089131
Available from: 2017-04-18 Created: 2017-04-18 Last updated: 2017-10-06Bibliographically approved

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