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首页> 外文期刊>Advanced Materials >Highly Stretchable Metallic Nanowire Networks Reinforced by the Underlying Randomly Distributed Elastic Polymer Nanofibers via Interfacial Adhesion Improvement
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Highly Stretchable Metallic Nanowire Networks Reinforced by the Underlying Randomly Distributed Elastic Polymer Nanofibers via Interfacial Adhesion Improvement

机译：底层粘合随机分布的弹性聚合物纳米纤维通过界面粘合力的增强增强了高度可拉伸的金属纳米线网络

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摘要

On-skin electronics require conductive, porous, and stretchable materials for a stable operation with minimal invasiveness to the human body. However, porous elastic conductors that simultaneously achieve high conductivity, good stretchability, and durability are rare owing to the lack of proper design for good adhesion between porous elastic polymer and conductive metallic networks. Here, a simple fabrication approach for porous nanomesh-type elastic conductors is shown by designing a layer-by-layer structure of nanofibersanowires (NFs/NWs) via interfacial hydrogen bonding. The as-prepared conductors, consisting of Ag NWs and polyurethane (PU) NFs, simultaneously achieve high conductivity (9190 S cm(-1)), high stretchability (310%), and good durability (82% resistance increase after 1000 cycles of deformation at 70% tensile strain). The direct contact between the Ag NWs enables the high conductivity. The synergistic effect of the layer-by-layer structure and good adhesion between the Ag NWs and the PU NFs enables good mechanical properties. Furthermore, without any adhesive gel/tape, the conductors can be utilized as breathable strain sensors for precise joint motion monitoring, and as breathable sensing electrodes for continuous electrophysiological signal recording.
机译：皮肤上的电子设备需要导电，多孔和可拉伸的材料，以实现稳定的操作，并且对人体的侵害最小。然而，由于缺乏用于多孔弹性聚合物与导电金属网络之间的良好粘合的适当设计，因此很少能同时获得高导电性，良好的可拉伸性和耐久性的多孔弹性导体。在此，通过界面氢键设计纳米纤维/纳米线（NFs / NWs）的逐层结构，显示了一种用于多孔纳米网状弹性导体的简单制造方法。由Ag NWs和聚氨酯（PU）NFs组成的准备好的导体可同时实现高导电性（9190 S cm（-1）），高拉伸性（310％）和良好的耐久性（1000次循环后电阻增加82％） 70％拉伸应变时变形）。 Ag NW之间的直接接触可实现高电导率。逐层结构的协同作用以及Ag NW和PU NF之间的良好附着力可实现良好的机械性能。此外，在没有任何胶粘剂/胶带的情况下，导体可用作用于精确关节运动监测的透气应变传感器，以及用作连续电生理信号记录的透气感应电极。

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  • 来源
    《Advanced Materials》 |2019年第37期|1903446.1-1903446.9|共9页
  • 作者

    Jiang Zhi; Nayeem Muhammad Osman Goni; Fukuda Kenjiro; Ding Su; Jin Hanbit; Yokota Tomoyuki; Inoue Daishi; Hashizume Daisuke; Someya Takao;

  • 作者单位

    RIKEN Thin Film Device Lab 2-1 Hirosawa Wako Saitama 3510198 Japan|Univ Tokyo Elect & Elect Engn & Informat Syst 7-3-1 Bunkyo Ku Tokyo 1138656 Japan;

    Univ Tokyo Elect & Elect Engn & Informat Syst 7-3-1 Bunkyo Ku Tokyo 1138656 Japan;

    RIKEN Thin Film Device Lab 2-1 Hirosawa Wako Saitama 3510198 Japan|RIKEN Ctr Emergent Matter Sci 2-1 Hirosawa Wako Saitama 3510198 Japan;

    Hangzhou Dianzi Univ Coll Mat & Environm Engn Hangzhou 310018 Zhejiang Peoples R China;

    RIKEN Ctr Emergent Matter Sci 2-1 Hirosawa Wako Saitama 3510198 Japan;

    RIKEN Thin Film Device Lab 2-1 Hirosawa Wako Saitama 3510198 Japan|Univ Tokyo Elect & Elect Engn & Informat Syst 7-3-1 Bunkyo Ku Tokyo 1138656 Japan|RIKEN Ctr Emergent Matter Sci 2-1 Hirosawa Wako Saitama 3510198 Japan;

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  • 正文语种 eng
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  • 关键词

    durability; nanomesh-type elastic conductors; on-skin electronics; ultralight;

    机译：耐久性纳米网状弹性导体;皮肤上的电子产品;超轻;

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