壳聚糖对碳纳米管的表面修饰

SURFACE MODIFICATION OF CARBON NANOTUBES WITH CHITOSAN

采用表面沉积交联法实现了壳聚糖对碳纳米管的表面修饰,并对所得的复合材料进行了相应的检测。结果表明:得到的复合材料中碳纳米管表面完全被壳聚糖所覆盖,管径变粗,并且由于壳聚糖覆盖层的静电排斥作用,使壳聚糖修饰后碳纳米管的团聚减少。

Surface modification of carbon nanotubes （CNTs） with biopolymer chitosan was performed via a controlled surface deposition and crosslinking process. The characteristic of modified CNTs was measured The results show that the diameter of CNTs becomes thicker because the surface of CNTs is covered with chitosan, and the glomeration of the CNTs decreases to improve the dispersion of CNTs due to static electric repulsive action of chitosan coating.