Crystallization Behaviors of Graphene Oxide—Carbon Nanotubes Hybrids / Polyamide 66 Composites

ABSTRACTThe crystallization behaviors of graphene oxide–carbon nanotube hybrids/polyamide 66 composites were characterized by using differential scanning calorimetry. The results of nonisothermal crystallization showed that the halftime of crystallization and crystallization enthalpy increased with an increase in filler loading. The results of isothermal crystallization showed that the halftime of crystallization was affected not only by the filler loading but also the crystallization temperature. Moreover, it decreased with an increase in filler loading at 243°C, while decreased first and then increased at 245 or 247°C. In addition, when the filler loading was 0.6 wt%, it reached the minimum value. This was the same as the isothermal crystallization activation energy.