[2P42] Improved efficiency of carbon nanotube yarn formation using gas discharge breakdown
We found CNT filament formation phenomenon induced by gas discharge breakdown. In this phenomenon, the gas discharge breakdown generated between electrodes, which was covered with carbon nanotube (CNT) film, created a lot of dust-like CNT bundles and these CNT bundles formed long CNT bundles by effect of an electric field. This phenomenon is promising for a simple and high efficiency CNT spinning method. Using this phenomenon, we have successfully formed CNT yarns by spinning these filaments. However, the CNT yarns formed this method is short (typically <15 mm). To obtain longer CNT yarns, we used a newly designed electrode configuration. Furthermore, we improved the formation process of the CNT yarns. As a result, we obtained longer CNT yarns than those of the conventional formation conditions.
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