Characterization of PU Nanofiber Web Treated with Non-oxidized Graphene and Silver Nanowire
Vol. 21, No. 5, pp. 978-983,
May 2020
10.1007/s12221-020-9023-8
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Abstract
The purpose of this study was to investigate the applicability of polyurethane nanofiber webs as smart textiles by
evaluating electrical properties, surface properties, chemical properties, and thermal properties after imparting electrical
conductivity by treating non-oxidized graphene/silver nanowire. For this purpose, three specimens were prepared by mixing
non-oxidized graphene and silver nanowire at ratios of 3:1, 2:1, and 3:2, in order to impart conductivity to the polyurethane
nanofiber web. The prepared specimens were named G/Ag31, G/Ag21 and G/Ag32 according to the ratio. The linear
resistance and the surface resistance of each specimen was measured to estimate electrical properties of each specimen. The
surface characteristics of the specimens were observed by FE-SEM photographs. HR-XRD analysis and Raman analysis
were performed in order to determine whether the non-oxidized graphene and silver nanowires were properly processed in
the fabricated specimens respectively. DSC and TGA analysis were also performed to investigate the thermal properties. As
the results, the higher ratio of silver nanowires coated on the specimen, the lower the electrical resistance value. In the surface
characteristics analysis, it was confirmed that the density of the silver nanowire was higher than that of the specimen having
the higher silver nanowire ratio. In HR-XRD analysis, it was confirmed that non-oxidized graphene and silver nanowire
existed in all specimens. In Raman analysis, it was confirmed that the intensity of 2D-peak was lower in specimens with high
silver nanowire ratio. However, the difference in intensity between G/Ag21 and G/Ag32 was relatively small. In thermal
analysis, it was found that the thermal stability of the specimen was higher than that of the untreated polyurethane nanofiber
web because the thermogravimetric after 600 oC of all the specimens was larger than the untreated specimen. Therefore, in
this study, it was confirmed that G/Ag32 specimen is best suited as a smart textile and it is confirmed that it can be applied as
a textile sensor in the future.
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Cite this article
[IEEE Style]
J. Choi, W. Kim, E. Lee, G. Cho, "Characterization of PU Nanofiber Web Treated with Non-oxidized Graphene and Silver Nanowire," Fibers and Polymers, vol. 21, no. 5, pp. 978-983, 2020. DOI: 10.1007/s12221-020-9023-8.
[ACM Style]
Jisoo Choi, Woojin Kim, Eugene Lee, and Gilsoo Cho. 2020. Characterization of PU Nanofiber Web Treated with Non-oxidized Graphene and Silver Nanowire. Fibers and Polymers, 21, 5, (2020), 978-983. DOI: 10.1007/s12221-020-9023-8.