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Clay Nanopaper with Tough Cellulose Nanofiber Matrix for Fire Retardancy and Gas Barrier Functions
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Engineering Material Physics.ORCID iD: 0000-0003-4889-4210
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2011 (English)In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 12, no 3, 633-641 p.Article in journal (Refereed) Published
Abstract [en]

Nacre-mimicking hybrids of high inorganic content (> 50 wt %) tend to show low strain-to-failure. Therefore, we prepared clay nanopaper hybrid composite montmorillonite platelets in a continuous matrix of nanofibrillated cellulose (NFC) with the aim of harnessing the intrinsic toughness of fibrillar networks. Hydrocolloid mixtures were used in a filtration approach akin to paper processing. The resulting multilayered structure of the nanopaper was studied by FE-SEM, FTIR, and XRD. Uniaxial stress strain curves measured in tension and thermal analysis were carried out by DMTA and TGA. In addition, fire retardance and oxygen permeability characteristics were measured. The continuous NFC matrix is a new concept and provides unusual ductility to the nanocomposite, allowing inorganic contents as high as 90% by weight. Clay nanopaper extends the property range of cellulose nanopaper and is of interest in self-extinguishing composites and in oxygen barrier layers.

Place, publisher, year, edition, pages
American Chemical Society , 2011. Vol. 12, no 3, 633-641 p.
Keyword [en]
POLYMER NANOCOMPOSITES, MECHANICAL-PROPERTIES, NACRE, FILMS, TRANSPARENT, FLAMMABILITY, PERFORMANCE, DESIGN, HYBRID, BONE
National Category
Chemical Sciences Other Engineering and Technologies not elsewhere specified
Identifiers
URN: urn:nbn:se:kth:diva-32028DOI: 10.1021/bm101296zISI: 000288183100015Scopus ID: 2-s2.0-79955441515OAI: oai:DiVA.org:kth-32028DiVA: diva2:408883
Note

QC 20110406

Available from: 2011-04-06 Created: 2011-04-04 Last updated: 2017-12-11Bibliographically approved

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Belova, LyubaBerglund, Lars A.

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Liu, AndongBelova, LyubaBerglund, Lars A.
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Wallenberg Wood Science CenterEngineering Material Physics
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