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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Piezoelectric effect of cyanoethylated hydroxyethylcellulose

Journal of Wood Science volume 44, pages 35–39 (1998)Cite this article

Abstract

The piezoelectricity of cyanoethylated hydroxyethylcellulose was investigated. Elastic, piezoelectric, and dielectric relaxations were observed at −80° to −60°C and 0° to 20°C at a frequency of 10Hz. The activation energy is about 9–15 kcal/mol in the low temperature region and about 30–45 kcal/mol at room temperature. These relaxations in the low temperature region may be caused by the motion of the cyanoethyl group and those at room temperature mostly by the motions of the main chain. Cyanoethylated hydroxyethylcellulose has a high piezoelectric strain constant (d 25), which is the largest value among the cellulose derivatives and is almost the same as the value for polyvinylidene fluoride. The electromechanical coupling factor for cyanoethylated hydroxyethylcellulose was small.

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Authors and Affiliations

  1. Faculty of Agriculture, Shizuoka University, 836 Otani, 422, Shizuoka, Japan

    Nobuyuki Hirai, Kooji Ootake, Kyouji Suzuki & Nobuo Sobue

  2. The Institute of Physical and Chemical Research, 351-02, Wako-shi, Saitama, Japan

    Munehiro Date

  3. Sunpia Homes, 454, Nagoya-shi, Aichi, Japan

    Toyoko Watanabe

Authors
  1. Nobuyuki Hirai
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  2. Kooji Ootake
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  3. Kyouji Suzuki
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  4. Nobuo Sobue
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  5. Munehiro Date
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  6. Toyoko Watanabe
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Hirai, N., Ootake, K., Suzuki, K. et al. Piezoelectric effect of cyanoethylated hydroxyethylcellulose. J Wood Sci 44, 35–39 (1998). https://doi.org/10.1007/BF00521872

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  • DOI: https://doi.org/10.1007/BF00521872

Key words

  • Cyanoethylated hydroxyethylcellulose
  • High piezoelectric material
  • Functional cellulose derivative
  • Electromechanical coupling factor