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首页> 外文期刊>Journal of Applied Polymer Science >Flexible strain sensors based on epoxy/graphene composite film with long molecular weight curing agents
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Flexible strain sensors based on epoxy/graphene composite film with long molecular weight curing agents

机译：基于环氧/石墨烯复合膜的柔性应变传感器，具有长分子量固化剂

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Flexible strain sensors based on epoxy/graphene composite film with long molecular weight curing agents have critical roles in the development of advanced polymer composite films that combine mechanical robustness with functional properties such as electrical conductivity for many applications. In this experiment, flexible epoxy/GnP composite film is obtained by using flexible curing agent J2000. A percolation threshold of electrical conductivity was observed at merely 0.97 vol% GnPs, and the composite electrical conductivity increased to 10(-6) S/cm at 5.0 vol %. The composite films were mechanically strong enough to be used as a flexible strain sensor. Our sensor can clearly detect the stretching of the forearm skin caused by a fist pulse and back of hand movement and achieve an enhancement of the resistance signal of up to 50%. When the GnPs content reaches 5%, Young's modulus and tensile strength increase to 21 MPa and 1.3 MPa, respectively. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47906.
机译：基于具有长分子量固化剂的环氧/石墨烯复合膜的柔性应变传感器在开发先进的聚合物复合薄膜中具有关键作用，其将机械稳健性与功能特性相结合，例如用于许多应用的电导率。在该实验中，通过使用柔性固化剂J2000获得柔性环氧/ GNP复合膜。仅在0.97体积％GNPS的情况下观察到导电率的渗透阈值，并且复合电导率在5.0体积％的5.0％（-6）S / cm。复合薄膜足够强大以用作柔性应变传感器。我们的传感器可以清楚地检测由拳击脉冲和手动的背部引起的前臂皮肤的拉伸，并实现高达50％的电阻信号的增强。当GNPS含量达到5％时，杨氏模量和拉伸强度分别增加到21MPa和1.3MPa。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47906。

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