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Materials 2017, 10(6), 611; doi:10.3390/ma10060611

Fabrication Method Study of ZnO Nanocoated Cellulose Film and Its Piezoelectric Property

Creative Research Center for Nanocellulose Future Composites, Department of Mechanical Engineering, Inha University, Incheon 22212, South Korea
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Academic Editor: Lorena Pardo
Received: 5 April 2017 / Revised: 22 May 2017 / Accepted: 1 June 2017 / Published: 2 June 2017
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Abstract

Recently, a cellulose-based composite material with a thin ZnO nanolayer—namely, ZnO nanocoated cellulose film (ZONCE)—was fabricated to increase its piezoelectric charge constant. However, the fabrication method has limitations to its application in mass production. In this paper, a hydrothermal synthesis method suitable for the mass production of ZONCE (HZONCE) is proposed. A simple hydrothermal synthesis which includes a hydrothermal reaction is used for the production, and the reaction time is controlled. To improve the piezoelectric charge constant, the hydrothermal reaction is conducted twice. HZONCE fabricated by twice-hydrothermal reaction shows approximately 1.6-times improved piezoelectric charge constant compared to HZONCE fabricated by single hydrothermal reaction. Since the fabricated HZONCE has high transparency, dielectric constant, and piezoelectric constant, the proposed method can be applied for continuous mass production. View Full-Text
Keywords: cellulose; ZnO nanocoating; hydrothermal synthesis; piezoelectric charge constant; continuous production cellulose; ZnO nanocoating; hydrothermal synthesis; piezoelectric charge constant; continuous production
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MDPI and ACS Style

Ko, H.-U.; Kim, H.C.; Kim, J.W.; Zhai, L.; Kim, J. Fabrication Method Study of ZnO Nanocoated Cellulose Film and Its Piezoelectric Property. Materials 2017, 10, 611.

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