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Clay Nanopaper with...
Clay Nanopaper with Tough Cellulose Nanofiber Matrix for Fire Retardancy and Gas Barrier Functions
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- Liu, Andong (author)
- KTH,Wallenberg Wood Science Center
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Walther, Andreas (author)
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Ikkala, Olli (author)
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- Belova, Lyuba (author)
- KTH,Teknisk materialfysik
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- Berglund, Lars A. (author)
- KTH,Wallenberg Wood Science Center
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(creator_code:org_t)
- 2011-02-03
- 2011
- English.
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In: Biomacromolecules. - : American Chemical Society. - 1525-7797 .- 1526-4602. ; 12:3, s. 633-641
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Övrig annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Other Engineering and Technologies not elsewhere specified (hsv//eng)
Keyword
- POLYMER NANOCOMPOSITES
- MECHANICAL-PROPERTIES
- NACRE
- FILMS
- TRANSPARENT
- FLAMMABILITY
- PERFORMANCE
- DESIGN
- HYBRID
- BONE
- Chemistry
- Kemi
- Material physics with surface physics
- Materialfysik med ytfysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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