碳纳米管分散性的研究

Study of Dispersion of Carbon Nanotubes

本文采用加入不同类型的表面活性剂和表面活性剂的复配,并用超声波振荡方法,研究碳纳米管在有机溶剂中的分散状态。通过沉降时间观察其分散性,采用激光粒度仪、扫描电镜、原子力显微镜对分散效果进行进一步分析。研究结果表明,用一定浓度的阳离子型全氟表面活性剂和阴离子型表面活性剂互配作为分散剂使碳纳米管达到很好的分散效果。

In this paper,carbon nanotubes were dispersed in traditional organic solvents incorporated with various surfactants or surfactant mixtures by ultrasonic agitation. Then the dispersity was evaluated with settlement time.And laser particle size analyzer,SEM and AFM were employed to confirm the results. It's found that the carbon nanotubes were dispersed very well in the mixture of cationic perfluoro- surfactant and anionic surfactant with an appropriate concentration.