Shin Sungeun, Lee Eugene, Cho Gilsoo
Department of Clothing and Textiles, Yonsei University, Seoul 03722, Korea.
Materials (Basel). 2021 Jan 21;14(3):498. doi: 10.3390/ma14030498.
Highly conductive nylon 6 nanofiber webs, incorporating poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and dimethyl sulfoxide (DMSO), were prepared for textile-based signal transmission lines. To improve the electrical performance of the textiles, they were optimized by the number of coating cycles and the solvent treatment step. The nanofiber web coated four times with PEDOT:PSS showed a six-times reduction in sheet resistance compared to that of once. In addition, the sample treated with both adding and dipping of DMSO showed a significant decrease of 83 times in sheet resistance compared to the sample without treatment of DMSO. Using samples with excellent electrical conductivity, the waveforms of the signal in the time domain were analyzed and shown to have an amplitude and phase almost identical to that of the conventional copper wire. As a result of the S21 characteristic curve, selected textiles were available up to the 15 MHz frequency bandwidth. In the FE-SEM image, it was observed that the surface of the coated sample was generally covered with PEDOT:PSS, which was distinguished from the untreated sample. These results demonstrate that the nanofiber web treated with the optimized conditions of PEDOT:PSS and DMSO can be applied as promising textile-based signal transmission lines for smart clothing.
制备了包含聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT:PSS）和二甲基亚砜（DMSO）的高导电性尼龙6纳米纤维网，用于基于纺织品的信号传输线。为了提高纺织品的电性能，通过涂层循环次数和溶剂处理步骤对其进行了优化。与涂覆一次的情况相比，用PEDOT:PSS涂覆四次的纳米纤维网的表面电阻降低了六倍。此外，与未经过DMSO处理的样品相比，经过DMSO添加和浸渍处理的样品的表面电阻显著降低了83倍。使用具有优异导电性的样品，对时域中的信号波形进行了分析，结果表明其幅度和相位与传统铜线几乎相同。根据S21特性曲线，所选纺织品在高达15 MHz的频率带宽内均可用。在场发射扫描电子显微镜（FE-SEM）图像中，可以观察到涂覆样品的表面通常覆盖有PEDOT:PSS，这与未处理的样品不同。这些结果表明，经过PEDOT:PSS和DMSO优化条件处理的纳米纤维网可作为智能服装中基于纺织品的信号传输线的有前途的材料。
