| 초록 |
Polymer nanocomposites containing graphene have drawn much attention for scientific interests and industrial purposes over the past few years because they can have much improved performance. However, the poor compatibility of graphene with polymers limits the practical application for the polymer nanocomposites. Therefore, the modification of graphene is strongly needed to increase the miscibility with the polymer. This presentation will introduce various approaches to prepare graphene-derivatives modified with various kinds of chemical moieties including polymers for the improved compatibility with the polymers. The physical properties of polymers were much improved by using such graphene derivatives as the fillers of polymer nanocomposites. For example, when only 0.01 wt% of graphene oxide (GO) derivatives containing polyamide 6 chains were mixed with aliphatic polyketone (PK), the tensile strength increased by 40 %, and the elongation at break increased tremendously by 100 times. |
