Clay Nanopaper with Tough Cellulose Nanofiber Matrix for Fire Retardancy and Gas Barrier Functions
- 3 February 2011
- journal article
- research article
- Published by American Chemical Society (ACS) in Biomacromolecules
- Vol. 12 (3), 633-641
- https://doi.org/10.1021/bm101296z
Abstract
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.Keywords
This publication has 35 references indexed in Scilit:
- Fast Preparation Procedure for Large, Flat Cellulose and Cellulose/Inorganic Nanopaper StructuresBiomacromolecules, 2010
- Assessing the combined benefits of clay and nanofibrillated cellulose in layered TMP-based sheetsCellulose, 2009
- Transparent and High Gas Barrier Films of Cellulose Nanofibers Prepared by TEMPO-Mediated OxidationBiomacromolecules, 2008
- Cellulose Nanopaper Structures of High ToughnessBiomacromolecules, 2008
- Flammability Properties of Polymer−Layered-Silicate Nanocomposites. Polypropylene and Polystyrene NanocompositesChemistry of Materials, 2000
- Flammability and thermal stability studies of polymer layered-silicate (clay) nanocompositesApplied Clay Science, 1999
- Fuzzy Nanoassemblies: Toward Layered Polymeric MulticompositesScience, 1997
- Biomimetic Pathways for Assembling Inorganic Thin FilmsScience, 1996
- A study of the relationship between mineral content and mechanical properties of turkey gastrocnemius tendonJournal of Bone and Mineral Research, 1995
- Synthesis of nylon 6-clay hybridJournal of Materials Research, 1993