In this study, a new method of rapid preparation of carbon nanotube (CNT) solution with highly dispersed morphology by free arc excitation is proposed, which shortens the time of the preparation of CNT solution with low concentration. The principle is that the high-energy flow density heat generated by the free arc makes the vaporizable substance coated on the surface of CNTs vaporize rapidly, and then generates the bulk increasing motion, which makes the CNTs aggregates dispersed, and finally forms the CNTs gas-phase dispersion monomer with high dispersion or the cross-linking morphology of few CNTs. In this paper, the influence of gum Arabic (GA) and deionized water (DI water) contents in CNTs mixed electrode on the dispersion of CNTs in different environments (gas phase and liquid phase) is explored. In the limited case of this work, the dispersion effect is better when the mass ratio of CNTs, GA and DI water is 1:0.04:3.96 in the liquid-phase environment. The preparation method reported in this work is expected to be a rapid way to obtain low-concentration nanodispersion.

本研究提出了一种通过自由电弧激发快速制备形态高度分散的碳纳米管溶液的新方法，该方法缩短了制备低浓度碳纳米管溶液的时间。其原理是，自由电弧产生的高能流密度热量使涂覆在CNT表面的可蒸发物质迅速蒸发，然后产生整体增长运动，使CNT聚集体分散，最终形成CNTs气体。相分散单体，具有高分散性或很少的CNT的交联形态。本文探讨了碳纳米管混合电极中阿拉伯树胶（GA）和去离子水（DI水）的含量对碳纳米管在不同环境（气相和液相）中的分散性的影响。在这项工作的有限情况下，当CNTs，GA和DI水的质量比为1：0.04：3.96时，在液相环境中分散效果更好。这项工作中报道的制备方法有望成为获得低浓度纳米分散体的快速方法。