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Journal of Nanoparticle Research

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01-03-2010 | Research Paper

Computer-assisted quantification of the multi-scale structure of films made of nanofibrillated cellulose

Authors: Gary Chinga-Carrasco, Kristin Syverud

Published in: Journal of Nanoparticle Research | Issue 3/2010

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Abstract

Films made of nanofibrillated cellulose (NFC) are most interesting for use in packaging applications. However, in order to understand the film-forming capabilities of NFC and their properties, new advanced methods for characterizing the different scales of the structures are necessary. In this study, we perform a comprehensive characterisation of NFC-films, based on desktop scanner analysis, scanning electron microscopy in backscatter electron imaging mode (SEM-BEI), laser profilometry (LP) and field-emission scanning electron microscopy in secondary electron imaging mode (FE-SEM-SEI). Objective quantification is performed for assessing the (i) film thicknesses, (ii) fibril diameters and (iii) fibril orientations, based on computer-assisted electron microscopy. The most frequent fibril diameter is 20–30 nm in diameter. A method for acquiring FE-SEM images of NFC surfaces without a conductive metallic layer is introduced. Having appropriate characterisation tools, the structural and mechanical properties of the films upon moisture were quantified.

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Title: Computer-assisted quantification of the multi-scale structure of films made of nanofibrillated cellulose
Authors: Gary Chinga-Carrasco
Kristin Syverud
Publication date: 01-03-2010
Publisher: Springer Netherlands
Published in: Journal of Nanoparticle Research / Issue 3/2010
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-009-9710-2

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