Large-area, lightweight and thick biomimetic composites with superior material properties via fast, economic, and green pathways

Andreas Walther (Corresponding Author), Ingela Bjurhager, Jani-Markus Malho, Jaakko Pere, Janne Ruokolainen, Lars A. Berglund, Olli Ikkala (Corresponding Author)

    Research output: Contribution to journalArticleScientificpeer-review

    309 Citations (Scopus)

    Abstract

    Although remarkable success has been achieved to mimic the mechanically excellent structure of nacre in laboratory-scale models, it remains difficult to foresee mainstream applications due to time-consuming sequential depositions or energy-intensive processes. Here, we introduce a surprisingly simple and rapid methodology for large-area, lightweight, and thick nacre-mimetic films and laminates with superior material properties. Nanoclay sheets with soft polymer coatings are used as ideal building blocks with intrinsic hard/soft character. They are forced to rapidly self-assemble into aligned nacre-mimetic films via paper-making, doctor-blading or simple painting, giving rise to strong and thick films with tensile modulus of 45 GPa and strength of 250 MPa, that is, partly exceeding nacre. The concepts are environmentally friendly, energy-efficient, and economic and are ready for scale-up via continuous roll-to-roll processes. Excellent gas barrier properties, optical translucency, and extraordinary shape-persistent fire-resistance are demonstrated. We foresee advanced large-scale biomimetic materials, relevant for lightweight sustainable construction and energy-efficient transportation.
    Original languageEnglish
    Pages (from-to)2742-2748
    Number of pages7
    JournalNano Letters
    Volume10
    Issue number8
    DOIs
    Publication statusPublished - 2010
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Nacre
    biomimetics
    Biomimetics
    economics
    Materials properties
    Biomimetic materials
    Fire resistance
    Economics
    composite materials
    Composite materials
    Painting
    Thick films
    Laminates
    flammability
    Optical properties
    Elastic moduli
    scale models
    Coatings
    laminates
    thick films

    Keywords

    • Biomimetic materials
    • nacre
    • self-assembly
    • layered composite
    • mechanical properties

    Cite this

    Walther, Andreas ; Bjurhager, Ingela ; Malho, Jani-Markus ; Pere, Jaakko ; Ruokolainen, Janne ; Berglund, Lars A. ; Ikkala, Olli. / Large-area, lightweight and thick biomimetic composites with superior material properties via fast, economic, and green pathways. In: Nano Letters. 2010 ; Vol. 10, No. 8. pp. 2742-2748.
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    title = "Large-area, lightweight and thick biomimetic composites with superior material properties via fast, economic, and green pathways",
    abstract = "Although remarkable success has been achieved to mimic the mechanically excellent structure of nacre in laboratory-scale models, it remains difficult to foresee mainstream applications due to time-consuming sequential depositions or energy-intensive processes. Here, we introduce a surprisingly simple and rapid methodology for large-area, lightweight, and thick nacre-mimetic films and laminates with superior material properties. Nanoclay sheets with soft polymer coatings are used as ideal building blocks with intrinsic hard/soft character. They are forced to rapidly self-assemble into aligned nacre-mimetic films via paper-making, doctor-blading or simple painting, giving rise to strong and thick films with tensile modulus of 45 GPa and strength of 250 MPa, that is, partly exceeding nacre. The concepts are environmentally friendly, energy-efficient, and economic and are ready for scale-up via continuous roll-to-roll processes. Excellent gas barrier properties, optical translucency, and extraordinary shape-persistent fire-resistance are demonstrated. We foresee advanced large-scale biomimetic materials, relevant for lightweight sustainable construction and energy-efficient transportation.",
    keywords = "Biomimetic materials, nacre, self-assembly, layered composite, mechanical properties",
    author = "Andreas Walther and Ingela Bjurhager and Jani-Markus Malho and Jaakko Pere and Janne Ruokolainen and Berglund, {Lars A.} and Olli Ikkala",
    year = "2010",
    doi = "10.1021/nl1003224",
    language = "English",
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    Walther, A, Bjurhager, I, Malho, J-M, Pere, J, Ruokolainen, J, Berglund, LA & Ikkala, O 2010, 'Large-area, lightweight and thick biomimetic composites with superior material properties via fast, economic, and green pathways', Nano Letters, vol. 10, no. 8, pp. 2742-2748. https://doi.org/10.1021/nl1003224

    Large-area, lightweight and thick biomimetic composites with superior material properties via fast, economic, and green pathways. / Walther, Andreas (Corresponding Author); Bjurhager, Ingela; Malho, Jani-Markus; Pere, Jaakko; Ruokolainen, Janne; Berglund, Lars A.; Ikkala, Olli (Corresponding Author).

    In: Nano Letters, Vol. 10, No. 8, 2010, p. 2742-2748.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Large-area, lightweight and thick biomimetic composites with superior material properties via fast, economic, and green pathways

    AU - Walther, Andreas

    AU - Bjurhager, Ingela

    AU - Malho, Jani-Markus

    AU - Pere, Jaakko

    AU - Ruokolainen, Janne

    AU - Berglund, Lars A.

    AU - Ikkala, Olli

    PY - 2010

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    AB - Although remarkable success has been achieved to mimic the mechanically excellent structure of nacre in laboratory-scale models, it remains difficult to foresee mainstream applications due to time-consuming sequential depositions or energy-intensive processes. Here, we introduce a surprisingly simple and rapid methodology for large-area, lightweight, and thick nacre-mimetic films and laminates with superior material properties. Nanoclay sheets with soft polymer coatings are used as ideal building blocks with intrinsic hard/soft character. They are forced to rapidly self-assemble into aligned nacre-mimetic films via paper-making, doctor-blading or simple painting, giving rise to strong and thick films with tensile modulus of 45 GPa and strength of 250 MPa, that is, partly exceeding nacre. The concepts are environmentally friendly, energy-efficient, and economic and are ready for scale-up via continuous roll-to-roll processes. Excellent gas barrier properties, optical translucency, and extraordinary shape-persistent fire-resistance are demonstrated. We foresee advanced large-scale biomimetic materials, relevant for lightweight sustainable construction and energy-efficient transportation.

    KW - Biomimetic materials

    KW - nacre

    KW - self-assembly

    KW - layered composite

    KW - mechanical properties

    U2 - 10.1021/nl1003224

    DO - 10.1021/nl1003224

    M3 - Article

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    JO - Nano Letters

    JF - Nano Letters

    SN - 1530-6984

    IS - 8

    ER -