多壁碳纳米管的分散性研究

Studies of Dispersion of Multi--wall Carbon Nanotubes

以多壁碳纳米管为原料，添加十二烷基苯磺酸钠进行表面活化，并溶于乙醇中，用超声震荡法分散多壁碳纳米管，采用扫描电镜（SEM）对其进行粒子表征。结果表明，运用超声振荡法分散的多壁碳纳米管分散情况良好，碳纳米管直径在30--50nm之间，能够达到较好的分散效果。

The multi--wall carbon nanotubes have been dispersed via ultrasonic vibration method by adding surfactant and dissolved related solvent and then are investigated by the scanning electron microscopy （SEM） . It is found that the situation of the multi--wall carbon nano--tube dispersed via ultrasonic vibration method is good and it has the diameter between 30-- 50nm, which are highly dispersed.