2018 - Sustainable Industrial Processing Summit & Exhibition
4-7 November 2018, Rio Othon Palace, Rio De Janeiro, Brazil
Seven Nobel Laureates have already confirmed their attendance: Prof. Dan Shechtman, Prof. Sir Fraser Stoddart, Prof. Andre Geim, Prof. Thomas Steitz, Prof. Ada Yonath, Prof. Kurt Wüthrich and Prof. Ferid Murad. More than 400 Abstracts Submitted from about 60 Countries.
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    Laponite-reinforced Nanocellulose: A Wood-based Substrate for Recyclable and Foldable Electronics
    Firoz Babu Kadumudi1; Mehdi Mehrali1; Alireza Dolatshahi Pirouz1;
    1TECHNICAL UNIVERSITY OF DENMARK, Kgs Lyngby, Denmark;
    PAPER: 258/AdvancedMaterials/Regular (Oral)
    SCHEDULED: 15:55/Wed./Grego (50/3rd)



    ABSTRACT:
    The quantity and speed of electronic waste (E-waste) discard has increased rapidly in recent years. Research to develop electronics that disappear has progressively gained importance, as it's a necessity to assure a sustainable environment [1, 2]. Interest in emerging green electronics follows from possibilities for broad types of applications that cannot be addressed with traditional rigid electronics, such as flexibility and foldability. Flexible devices that can be easily fabricated on polymeric substrates, which typically constitute the majority of the weight in a device, are suitable for a broad range of applications to empower conformal devices and displays[1]. Nanocellulose, extracted from wood, has been explored as bio-derived and biodegradable materials due to its good thermo-mechanical properties[3]. Even still, the current substantial thermal mismatch between nanocellulose and inorganic electronics, can result in the malfunction of electronic devices[4]. In this work, we have developed rollable nanoclay incorporated nanocellulose free standing films for flexible and recyclable electronics with improving their coefficient of thermal expansion (CTE) and thermo-mechanical properties. Specifically, we have used Laponite® nanoclay to generate nacre mimetic nanocellulose films. The electrostatic interaction of Laponite® with nanocellulose formed a flexible film with mechanically stable, thermally stable (310 °C) and low CTE (40 ppm/°C) properties. Electronic patterns were deposited on Laponite®-nanocellulose films using lithographic techniques through a shadow mask, and demonstrated their possibility in foldable electronics applications. Note: Laponite® is a trademark of BYK Additives Ltd.

    References:
    [1] X. Liu, Y.-Z. Long, L. Liao, X. Duan, Z. Fan, ACS nano 2012, 6, 1888.<br />[2] M. Irimia-Vladu, Chemical Society Reviews 2014, 43, 588.<br />[3] D. Klemm, F. Kramer, S. Moritz, T. Lindstrom, M. Ankerfors, D. Gray, A. Dorris, Angewandte Chemie International Edition 2011, 50, 5438.<br />[4] H. Zhu, W. Luo, P. N. Ciesielski, Z. Fang, J. Zhu, G. Henriksson, M. E. Himmel, L. Hu, Chemical reviews 2016, 116, 9305.