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Artificial Nacre-like Bionanocomposite Films from the Self-Assembly of Chitosan–Montmorillonite Hybrid Building Blocks

Authors

  • Hong-Bin Yao,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026 (P.R. China), Fax: (+86) 551-360-3040 http://staff.ustc.edu.cn/∼yulab/
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  • Zhi-Hua Tan,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026 (P.R. China), Fax: (+86) 551-360-3040 http://staff.ustc.edu.cn/∼yulab/
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  • Hai-Yu Fang,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026 (P.R. China), Fax: (+86) 551-360-3040 http://staff.ustc.edu.cn/∼yulab/
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  • Prof. Dr. Shu-Hong Yu

    Corresponding author
    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026 (P.R. China), Fax: (+86) 551-360-3040 http://staff.ustc.edu.cn/∼yulab/
    • Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026 (P.R. China), Fax: (+86) 551-360-3040 http://staff.ustc.edu.cn/∼yulab/
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  • S.H.Y. acknowledges the funding support from the National Basic Research Program of China (2010CB934700), the National Natural Science Foundation of China (Nos. 91022032, 50732006), and the International Science & Technology Cooperation Program of China (2010DFA41170).

Abstract

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Brick-and-mortar microstructures of artificial nacre-like chitosan–montmorillonite (MTM) bionanocomposite films can be readily fabricated by using chitosan–MTM hybrid nanosheets as building blocks (see picture). The fire-retardant nacre-like films have a higher mechanical performance (Young's modulus: 10 GPa, tensile strength: 100 MPa) than a film made by conventional methods.

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