| 초록 |
For the use of graphene oxide as nanofiller for polypropylene polymer matrix, the surface of graphene oxide needs to be converted into hydrophobic. Graphene oxide is mostly produced by modified Hummers’ method which requires a lot of strong acids and complex reaction steps. So many researchers are looking for alternative ways to produce graphene oxide. One of them is the carbonization of organic precursors. Through this way, graphene oxide can be produced in several steps without the use of strong acids and the resulting graphene oxide is smaller in lateral size than graphene oxide from modified Hummers’ method. In this work, we prepared graphene oxide by carbonization of citric acid and tannic acid which can be obtained from natural materials. This graphene oxide was functionalized with cardanol which comes from CNSL. This functionalized graphene oxide was mixed with polypropylene, and this composite material showed good mechanical properties compared to neat polypropylene. |
