Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
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Mechanical and Electrical Characteristics of Polyurethane-Based Composite Fibers

폴리우레탄 기반 복합 섬유의 기계적, 전기적 특성

  • Jang, Hoyoung (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Lee, Hyeon-Jong (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Suk, Ji Won (School of Mechanical Engineering, Sungkyunkwan University)
  • Received : 2019.10.27
  • Accepted : 2020.03.04
  • Published : 2020.04.30
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Abstract

Soft robotics and wearable devices require large motions and flexibility. In this regard, there is a demand for developing stretchable strain sensors which can be attached to the soft robots and wearable devices. In this work, we fabricated stretchable and electrically conductive composite fibers by combining polyurethane (PU) and silver nanoflowers (AgNFs). The PU/AgNF composite fibers showed the change of the resistance as a function of the applied strain, demonstrating the potential for stretchable strain sensors in soft robotics and wearable devices. The mechanical and electrical characteristics of the composite fibers were measured and analyzed to use the composite fibers for stretchable strain sensors.

소프트 로봇 및 웨어러블 소자는 대변형 및 큰 유연성을 요구한다. 이에 따라, 소프트 로봇 또는 웨어러블 소자에 부착하여 사용할 수 있는 신축성 스트레인 센서의 필요성이 대두되고 있다. 본 연구에서는 폴리우레탄과 은나노꽃입자를 혼합하여 신축성과 전기전도성을 갖는 복합 섬유를 제조하였다. 이러한 복합 섬유는 스트레인에 따라 섬유의 저항이 변하게 되어 신축성 스트레인 센서로 가능성이 높다. 복합 섬유를 신축성 스트레인 센서로 활용하기 위해서, 복합 섬유의 기계적, 전기적 특성을 측정, 분석하였다.

Keywords

References

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