• Title/Summary/Keyword: EAPap

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Fabrication of the micro-mold and nanofiber using cellulose solution (셀룰로오스를 이용한 마이크로 몰드 및 나노섬유 제작)

  • Cho, Ki-Youn;Lim, Hyun-Kyu;Kang, Kwang-Sun;Kim, Jae-Hwan
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.11a
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    • pp.69-72
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    • 2007
  • Cellulose is a beneficial material that has low cost, lightweight, high compatibility and biodegradability. Recently electroactive paper (EAPap) on cellulose base was discovered as a smart material and actuator through ion migration and piezoelectric effect. Furthermore cellulose has a potentiality to apply the display material, because of its high reflectivity, flexibility and high transmittance. The various shapes and height patterns of the Cellulose acetate (CA) solution, such as circle and honeycomb patterns, were fabricated and observed by field emission scanning electron microscope (FESEM, S4300 Hitachi). The resulting pattern showed uniform size in the large area without defect. After stretching the CA film with saponification process in the sodium methoxide in methanol solution, Most of the compositions become one directional ordered nanofibers below 50nm.

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Performance Characterization of Polyaniline Coated Electro-Active Paper Actuator (폴리아닐린이 코팅된 Electro-Active Paper 작동기 성능평가)

  • Ko, Hyun-U;Mun, Seong Cheol;Zhai, Lindong;Kim, Ki-Baek;Kim, Jaehwan
    • Journal of the Korean Society for Precision Engineering
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    • v.30 no.6
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    • pp.658-664
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    • 2013
  • Bending actuators composed of cellulose with an electrically conducting polymer (CP) are fabricated and their performance is characterized in the air. Two different counter ions, perchlorate and tetrafluoroborate are used as dopant ions in the polyaniline CP processing. CP-cellulose-CP trilayer and CP-cellulose bilayer samples are fabricated with different dopant ions, and their actuation performance is evaluated in terms of tip displacement, blocked force and electrical power consumption along with the humidity level and actuation frequency. The trilayer samples substantially enhanced the tip displacement compared to the bilayer ones. The actuation performance of the trilayer actuator is three times better than that of original cellulose electro-active paper (EAPap) actuator. The displacement and blocked force of CP-EAPap actuators are dependent on the humidity and frequency.