A CaCO3/nanocellulose-based bioinspired nacre-like material

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2017
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Schütz, Christina
Fornell, Jordina
Sort, Jordi
Salazar-Alvarez, Germán
Bergström, Lennart
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http://nbn-resolving.de/urn:nbn:de:bsz:352-0-393911
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https://doi.org/10.1039/C6TA09524K
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Journal of Materials Chemistry A. 2017, 5(31), pp. 16128-16133. ISSN 2050-7488. eISSN 2050-7496. Available under: doi: 10.1039/C6TA09524K
Zusammenfassung

Nacre continues to be an inspiration for the fabrication of strong and tough materials from renewable and earth-abundant raw materials. Herein, we showed how a nacre-like hybrid material based on nanocellulose (NC) and CaCO3 can be prepared via the sequential infiltration of polymer-stabilised CaCO3 liquid precursors into layers of pre-deposited NC films. Layer-by-layer assembly of the NC films followed by controlled spreading and infiltration with liquid CaCO3 precursors generated a lamellar material with an architecture and iridescent appearance similar to those of nacre. The wettability of the NC films towards the liquid CaCO3 precursors was controlled by hydroxyl and carboxyl functionalization of the NC fibrils and the addition of magnesium ions. The combination of a high stiffness and plasticity of the nacre-like NC/CaCO3 hybrid materials show that excellent mechanical properties can be obtained employing a fibrillar organic constituent that is relatively hard. The fabrication of a nacre-like hybrid material via an aqueous route of assembly and infiltration processing demonstrates how a sustainable composite material with outstanding properties can be produced using the most abundant biopolymer and biomineral on earth.

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ISO 690FARHADI-KHOUZANI, Masoud, Christina SCHÜTZ, Grazyna Malgorzata DURAK, Jordina FORNELL, Jordi SORT, Germán SALAZAR-ALVAREZ, Lennart BERGSTRÖM, Denis GEBAUER, 2017. A CaCO3/nanocellulose-based bioinspired nacre-like material. In: Journal of Materials Chemistry A. 2017, 5(31), pp. 16128-16133. ISSN 2050-7488. eISSN 2050-7496. Available under: doi: 10.1039/C6TA09524K
BibTex
@article{FarhadiKhouzani2017nanoc-37685,
  year={2017},
  doi={10.1039/C6TA09524K},
  title={A CaCO<sub>3</sub>/nanocellulose-based bioinspired nacre-like material},
  number={31},
  volume={5},
  issn={2050-7488},
  journal={Journal of Materials Chemistry A},
  pages={16128--16133},
  author={Farhadi-Khouzani, Masoud and Schütz, Christina and Durak, Grazyna Malgorzata and Fornell, Jordina and Sort, Jordi and Salazar-Alvarez, Germán and Bergström, Lennart and Gebauer, Denis}
}
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