| 초록 |
The reinforcement effect of molybdenum sulfide (MoS2) nanosheets on the mechanical properties of epoxy (EP) composites has been extensively studied. However, the effect of MoS2 quantum dots (MQDs) on the mechanical properties of EP composites has not been reported yet. In this study, we exfoliated bulk MoS2 into nanosheets (MNS) and MQDs, and use them as reinforcing materials to fabricate a series of high performance EP composites. The MNS and MQDs were dispersed in the EP matrix up to 1 wt. %. The reinforcement effect of MNS and MQDs on the mechanical properties of EP composites was studied in terms of interfacial properties, fracture toughness, and impact strength. Results demonstrated that MQDs remarkably enhance the fracture toughness, flexural strength, modulus, impact strength and interfacial interactions compared to neat epoxy and the one reinforced with MNS. |
