Electrical Properties of the Carbon-Nanotube Composites Film Under Extreme Temperature Condition
- Authors
- Ha, Ji-Hwan; Chu, Kunmo; Park, Sung-Hoon
- Issue Date
- Mar-2019
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Carbon Nanotube; Polymer Composite; Electrical Heating; Temperature Dependence of Resistance
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.19, no.3, pp.1682 - 1685
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 19
- Number
- 3
- Start Page
- 1682
- End Page
- 1685
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/30699
- DOI
- 10.1166/jnn.2019.16250
- ISSN
- 1533-4880
- Abstract
- Carbon nanotube (CNT) composites have been widely investigated for electric heating applications (such as water heater, de-icing unit, and patternable micro heaters) owing to their rapid heating, flexibility and light-weight properties. For practical use of CNT composite as heating element applications, the change of resistance with varying temperature must be interpreted. In this study, electric heating behavior of CNT/Nylon 6 composite film (10 wt%) and CNT/Polydimethylsiloxane (PDMS) composite film (10 wt%) were evaluated by measuring the change in normalized resistance under extreme temperature from -50 degrees C to 100 degrees C. While CNT/PDMS composite film showed 25% normalized resistance change from -50 degrees C to 100 degrees C, in the case of CNT/Nylon 6 composite film, only 10% normalized resistance change was shown. The difference of resistance change is attributed to the difference of the polymer's coefficient of thermal expansion (CTE), which is a crucial factor to consider in the design of CNT composites as a heater or heating sensor. CNT/Nylon 6 composite film is appropriate for flexible heating unit and de-icing application, due to the lower degree of resistance change than that of CNT/PDMS composite film. In addition, a thermal cycling test was conducted to determine the thermal stability and repeatability of CNT composites.
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