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Improved electrical resistance-pressure strain sensitivity of carbon nanotube network/polydimethylsiloxane composite using filtration and transfer process

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  • Mechnical Engineering
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Chinese Science Bulletin

Abstract

The electrical resistance-pressure strain sensitivity of carbon nanotube network (NTN)/polymer composite is investigated. In this research, polydimethylsiloxane (PDMS) is used as the polymer matrix. The composite of NTN embedded in PDMS matrix has been fabricated by using filtration and transfer process. The thickness of NTN/PDMS composite can be controlled. Electrical resistance and pressure strain of the NTN/PDMS composite are measured simultaneously. Electrical resistance of NTN/PDMS composite has been obtained as a function of pressure strain. The NTN/PDMS composite exhibits linear change in electrical resistance as a result of pressure strain and has improved electrical resistance-pressure strain sensitivity. The NTN/PDMS composite has 90.6% resistance change at 6% pressure strain. The electrical resistance-pressure strain sensitivity of NTN/PDMS composite using filtration and transfer process is 2.13 times of the traditional NTN/PDMS composite. The characteristic in electrical resistance change implies that NTN/PDMS composite can be used as pressure strain sensors and applied to sensor systems.

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Authors and Affiliations

  1. School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

    Qiang Lü, Hui Cao, ZhiYing Gan & Sheng Liu

  2. Wuhan National Laboratory for Optoelectronics, Wuhan, 430074, China

    Qiang Lü, Hui Cao, Han Yan, ZhiYing Gan & Sheng Liu

  3. Department of Electronic Science and Technology, Huazhong University of Science & Technology, Wuhan, 430074, China

    XiaoHui Song & Sheng Liu

  4. Research Institute of Micro/Nano Science and Technology, Shanghai Jiaotong University, Shanghai, 200052, China

    Han Yan

  5. Department of Mathematics and Physics, wuhan Polytechnic University, Wuhan, 430023, China

    Qiang Lü

Authors
  1. Qiang Lü
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  2. Hui Cao
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  3. XiaoHui Song
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  4. Han Yan
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  5. ZhiYing Gan
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  6. Sheng Liu
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Correspondence to ZhiYing Gan or Sheng Liu.

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Lü, Q., Cao, H., Song, X. et al. Improved electrical resistance-pressure strain sensitivity of carbon nanotube network/polydimethylsiloxane composite using filtration and transfer process. Chin. Sci. Bull. 55, 326–330 (2010). https://doi.org/10.1007/s11434-009-0562-z

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  • DOI: https://doi.org/10.1007/s11434-009-0562-z

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