Strain Sensing Characteristics of Rubbery Carbon Nanotube Composite for Flexible Sensors
- Authors
- Choi, Gyong Rak; Park, Hyung-Ki; Huh, Hoon; Kim, Young-Ju; Ham, Heon; Kim, Hyoun Woo; Lim, Kwon Taek; Kim, Sung Yong; Kang, Inpil
- Issue Date
- Feb-2016
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Flexible Sensor; Piezoresistive Sensor; Carbon Nanotubes; Rubbery Nanocomposite
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.16, no.2, pp.1607 - 1611
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 16
- Number
- 2
- Start Page
- 1607
- End Page
- 1611
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/24016
- DOI
- 10.1166/jnn.2016.11978
- ISSN
- 1533-4880
- Abstract
- In this study, the piezoresistive properties of CNT (Carbon Nanotube)/EPDM composite are characterized for the applications of a flexible sensor. The CNT/EPDM composites were prepared by using a Brabender mixer with MWCNT (Multi-walled Carbon Nanotube) and organo-clay. The static and quasi-dynamic voltage output responses of the composite sensor were also experimentally studied and were compared with those of a conventional foil strain gage. The voltage output by using a signal processing system was fairly stable and it shows somehow linear responses at both of loading and unloading cases with hysteresis. The voltage output was distorted under a quasi-dynamic test due to its unsymmetrical piezoresistive characteristics. The CNT/EPDM sensor showed quite tardy response to its settling time test under static deflections and that would be a hurdle for its real time applications. Furthermore, since the CNT/EPDM sensor does not have directional voltage output to tension and compression, it only could be utilized as a mono-directional force sensor such as a compressive touch sensor.
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