A CaCO3/nanocellulose-based bioinspired nacre-like material

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FARHADI-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. ISSN 2050-7488. eISSN 2050-7496

@article{Farhadi-Khouzani2017/nano-37685, title={A CaCO3/nanocellulose-based bioinspired nacre-like material}, year={2017}, doi={10.1039/C6TA09524K}, issn={2050-7488}, journal={Journal of Materials Chemistry A}, 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} }

Durak, Grazyna Malgorzata Farhadi-Khouzani, Masoud Sort, Jordi Bergström, Lennart 2017-02-22T15:30:24Z Schütz, Christina A CaCO<sub>3</sub>/nanocellulose-based bioinspired nacre-like material Gebauer, Denis Farhadi-Khouzani, Masoud 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 CaCO<sub>3</sub> can be prepared via the sequential infiltration of polymer-stabilised CaCO<sub>3</sub> 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 CaCO<sub>3</sub> 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 CaCO<sub>3</sub> 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/CaCO<sub>3</sub> 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. 2017-02-22T15:30:24Z Salazar-Alvarez, Germán Salazar-Alvarez, Germán Durak, Grazyna Malgorzata eng Fornell, Jordina Sort, Jordi 2017 Bergström, Lennart Schütz, Christina Gebauer, Denis Fornell, Jordina

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