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Highly sensitive graphene platelets and multi-walled carbon nanotube-based flexible strain sensor for monitoring human joint bending

机译：高灵敏度石墨烯血小板和基于多壁碳纳米管的柔性应变传感器，用于监测人体关节弯曲

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摘要

In this paper, we report the fabrication of a high-sensitivity strain sensor fabricated using graphene platelets (GnPs) and multi-walled carbon nanotubes (MWCNTs) for monitoring joint-bending movement. The optimized ultrasonic time and the ball mill-mixing process make the GnPs disperse evenly in the MWCNTs. The strain sensor made up of the GnP/MWCNT mixture (30wt% GnPs loading) is fabricated by a spray-method and its conductivity is up to 10(4)S/m. The as-prepared GnP/MWCNT sensor exhibits relatively high tensile strength of 5.4MPa, sensing range of 7.5%, gauge factor of 181.36, linearity of 99.545%, and great bending reproducibility over 5000 cycles. These remarkable features endow our sensing devices to monitor joint bending in human health monitoring, e.g., elbow, finger and wrist bending. The results demonstrate that our flexible GnP/MWCNT sensor shows promising applications prospects in smart wearable device monitoring human health.
机译：在本文中，我们报告了使用石墨烯薄片（GnPs）和多壁碳纳米管（MWCNTs）制造的高灵敏度应变传感器的制造情况，以监测关节的弯曲运动。优化的超声时间和球磨机混合过程使GnPs在MWCNTs中均匀分散。由GnP / MWCNT混合物（GnPs负载量为30wt％）组成的应变传感器是通过喷涂方法制造的，其电导率高达10（4）S / m。所制备的GnP / MWCNT传感器具有相对较高的抗拉强度，为5.4MPa，感测范围为7.5％，规格系数为181.36，线性度为99.545％，在5000个循环中具有出色的弯曲再现性。这些非凡的功能使我们的传感设备能够在人体健康监测中监测关节弯曲，例如肘部，手指和手腕的弯曲。结果表明，我们的柔性GnP / MWCNT传感器在监测人类健康的智能可穿戴设备中显示出广阔的应用前景。

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  • 来源
    《Applied Physics》 |2019年第7期|471.1-471.11|共11页
  • 作者

    Lu Shaowei; Ma Junchi; Ma Keming; Wang Xiaoqiang; Wang Shuai; Yang Xiangdong; Tang Hailong;

  • 作者单位

    SAU, Fac Mat Sci & Engn, Shenyang 110136, Liaoning, Peoples R China;

    SAU, Fac Mat Sci & Engn, Shenyang 110136, Liaoning, Peoples R China;

    SAU, Fac Mat Sci & Engn, Shenyang 110136, Liaoning, Peoples R China;

    SAU, Fac Aeronaut & Astronaut Engn, Shenyang 110136, Liaoning, Peoples R China;

    SAU, Fac Aeronaut & Astronaut Engn, Shenyang 110136, Liaoning, Peoples R China;

    SAU, Fac Mat Sci & Engn, Shenyang 110136, Liaoning, Peoples R China;

    SAU, Fac Aeronaut & Astronaut Engn, Shenyang 110136, Liaoning, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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