| 초록 |
Nowadays, various self-healing systems based on reversible reaction are coming up. And most of studies are introducing new polymers which have healing property. But these self-healing materials have a weak point that mechanical strength is low. So, in this study, we prepared material having both ability of healing and enhancing mechanical strength and that material is maleimide functionalized graphene oxide(mGO). First, before functionalize the maleimide group, graphene oxide (GO) was prepared through modified Hummer’s method. Then maleimide functionalities were introduced to GO by urethane reaction. Fourier transform infrared spectroscopy(FT-IR) and thermogravimetric analysis(TGA) were performed to characterize the mGO. The prepared mGO was applied to polymethacrylate cross-linked film using Diels-alder reaction and then the mechanical properties were evaluated. The universal testing machine(UTM) was used in this process, and further experiments were conducted through conference. |
