Fabrication of Cellulose ZnO Hybrid Nanocomposite and Its Strain Sensing Behavior

Hyun-U Ko; Seongcheol Mun; Seung-Ki Min; Gi-Woo Kim; Jaehwan Kim

doi:10.3390/ma7107000

Fabrication of Cellulose ZnO Hybrid Nanocomposite and Its Strain Sensing Behavior

Materials (Basel). 2014 Oct 16;7(10):7000-7009. doi: 10.3390/ma7107000.

Authors

Hyun-U Ko¹, Seongcheol Mun², Seung-Ki Min², Gi-Woo Kim³, Jaehwan Kim⁴

Affiliations

¹ Department of Mechanical Engineering, Inha University, Incheon 402-751, Korea. lostmago@naver.com.
² Department of Mechanical Engineering, Inha University, Incheon 402-751, Korea. msg8398@nate.com.
³ School of Automotive Engineering, Kyungpook National University, 386 Gajangdong, Sangju, Kyungsangpook-Do 742-711, Korea. gwkim2@knu.ac.kr.
⁴ Department of Mechanical Engineering, Inha University, Incheon 402-751, Korea. jaehwan@inha.ac.kr.

Abstract

This paper reports a hybrid nanocomposite of well-aligned zinc oxide (ZnO) nanorods on cellulose and its strain sensing behavior. ZnO nanorods are chemically grown on a cellulose film by using a hydrothermal process, termed as cellulose ZnO hybrid nanocomposite (CEZOHN). CEZOHN is made by seeding and growing of ZnO on the cellulose and its structural properties are investigated. The well-aligned ZnO nanorods in conjunction with the cellulose film shows enhancement of its electromechanical property. Strain sensing behaviors of the nanocomposite are tested in bending and longitudinal stretching modes and the CEZOHN strain sensors exhibit linear responses.

Keywords: cellulose; nanocomposite; piezoelectric; strain sensor; zinc oxide.