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Nanofibrillated cellulose in wood coatings: mechanical properties of free composite films

Journal of materials science, 2014-09, Vol.49 (18), p.6437-6448 [Peer Reviewed Journal]

Springer Science+Business Media New York 2014 ;COPYRIGHT 2014 Springer ;Journal of Materials Science is a copyright of Springer, (2014). All Rights Reserved. ;ISSN: 0022-2461 ;EISSN: 1573-4803 ;DOI: 10.1007/s10853-014-8373-2

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Title:
Nanofibrillated cellulose in wood coatings: mechanical properties of free composite films
Author: Grüneberger, Franziska ; Künniger, Tina ; Zimmermann, Tanja ; Arnold, Martin
Subjects: Acrylates ; Aging (artificial) ; Artificial weathering tests ; Beech ; Cellulose ; Characterization and Evaluation of Materials ; Chemical industry ; Chemistry and Materials Science ; Classical Mechanics ; Coatings ; Coatings industry ; Crystallography and Scattering Methods ; Elongation ; Embrittlement ; Materials Science ; Mechanical properties ; Mechanical tests ; Modulus of elasticity ; Nanostructure ; Polymer Sciences ; Polymeric films ; Polymers ; Solid Mechanics ; Tensile tests ; Weathering ; Wood ; Wood pulp
Is Part Of: Journal of materials science, 2014-09, Vol.49 (18), p.6437-6448
Description: Composite films of nanofibrillated cellulose (NFC), derived from beech wood pulp, and 8 commercial acrylic and alkyd polymeric binders were prepared. Structural and mechanical properties of the composites were assessed by microscopy and tensile tests before and after aging. While the NFC was compatible with acrylate polymers, it formed undesired aggregates during processing with the alkyd polymers. Modulus of elasticity, tensile strength, and elongation at break of prepared films depended on the initial properties of the neat polymers. All composite films were stiffer, stronger, and less extensible than the corresponding neat polymer films. The reinforcing effect increased with increasing NFC content. Aging by artificial weathering strongly affected the mechanical properties of neat polymer and composite films. Alkyd films became, compared to the acrylate films, much stiffer and more brittle after artificial weathering. The results of the mechanical tests are regarded as promising step to use NFC as novel component in wood coatings.
Publisher: Boston: Springer US
Language: English
Identifier: ISSN: 0022-2461
EISSN: 1573-4803
DOI: 10.1007/s10853-014-8373-2
Source: AUTh Library subscriptions: ProQuest Central
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Nanofibrillated cellulose in wood coatings: mechanical properties of free composite films

Springer Science+Business Media New York 2014 ;COPYRIGHT 2014 Springer ;Journal of Materials Science is a copyright of Springer, (2014). All Rights Reserved. ;ISSN: 0022-2461 ;EISSN: 1573-4803 ;DOI: 10.1007/s10853-014-8373-2

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