| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
대학원생 구두발표 (영어발표, 발표15분) |
| 제목 |
Humidity-Sensing Composite Microfibers Containing Conducting Nanofillers and Impedance Study on their Opposite Humidity Response |
| 초록 |
Humidity sensing microfibers containing an agarose as a hydrophilic matrix and two different combinations of conductive nanofillers: (1)reduced graphene oxide(rGO)/silver nanowires(AgNWs) and (2)carbon nanotubes(CNTs) are reported. Both microfibers show the enhanced electrical conductivity and mechanical properties, due to synergistic effect of AgNWs and rGO as 1D and 2D fillers or inherent property of CNT, respectively. The composite microfibers can be used as humidity sensors owing to their humidity-dependent conductivity. The microfiber with rGO/AgNWs shows positive dependence of its conductivity on humidity, upon ionization of water molecules by rGO. On the other hand, the microfiber with CNT shows negative dependence, due to decreased connection between CNTs resulting from swelling of the agarose at high humidity. To delve into the opposite humidity response of two microfibers, we performed impedance analysis of the fibers at various humidity conditions, which will be discussed. |
| 저자 |
박예진1, 이양우1, 소주희2, 김성곤3, 염봉준4, 구형준1
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| 소속 |
1서울과학기술대, 2한국생산기술(연), 3전북대, 4한양대 |
| 키워드 |
Conducting microfiber; Humidity sensor; Polymer composite; Hydrophilic polymer; Carbon-based nanofillers; Impedance Analysis
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| E-Mail |
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