Table 4.

Glass transition temperatures of neat epoxy system and composites with 0.5, 2, and 5 wt % of GO and rGO cured at a temperature of 90 °C.

Sample	Peak 1 (°C)	Peak 2 (°C) Tg∞
DGEBA-DDM	110.8	154.9
DGEBA-DDM + 0.5 wt % GO	112.7	170.2
DGEBA-DDM + 2 wt % GO	105.4	176.3
DGEBA-DDM + 5 wt % GO	112.0	176.3
DGEBA-DDM + 0.5 wt % rGO	105.2	162.4
DGEBA-DDM + 2 wt % rGO	107.8	162.4
DGEBA-DDM + 5 wt % rGO	113.7	173.9