碳纳米管的表面改性研究

Research on surface modification of carbon nanotubes

对多壁碳纳米管(MWCNT_S)进行了纯化处理,对处理过的MWCNT_S进行各种改性。采用各种表面修饰剂对MWCNT_S进行表面修饰,得到不同改性后的MWCNT_S,并对其进行FESEM表征和分析。结果表明,经改性后的MWCNT_S形貌发生明显变化,碳纳米管间的缠结减少,通过改性,碳纳米管表面接枝了相应的官能团,使得碳纳米管表面发生不同的变化。

Firstly, the purif icat ion treatment of multiple-walled carbon nanotub （MWCNTS） is studied. Second, various modifi-cation is conducted to treaed MWCNTS. The surface modification of MWCNTS is conducted by a variety of surface modifier. And different modified MWCNTS are got and FESEM characterization and analysis are conducted. The results show that the morphology of MWCNTS changes obviously after modification. The entanglement between carbon nanotubes is also reduced. Through modification, corresponding functional groups is graft onto the surface of carbon nanotubes, so that the carbon nano-tubes surface changes differently.