Enhancing graphene reinforcing potential in composites by hydrogen passivation induced dispersion

• DOI: 10.1038/srep02086
• Publication Date: 2013-06-27T09:06:04Z
• Authors: Yingchao Yang; William Rigdon; Xinyu Huang; Xiaodong Li
• Keywords: Passivation

To take full advantages of the structural uniqueness and exceptional properties graphene as reinforcement in composites, harvesting well-dispersed is essential. On other hand, it challenging to achieve simultaneously high stiffness, strength toughness engineered materials because trade-off relations between these properties. Here we demonstrate that reinforcing potential can be significantly enhanced through excellent dispersion sheets matrix material strong graphene-matrix bonding by coupled hydrogen passivation ultrasonication technique. The fabricated graphene/epoxy composites exhibit remarkable increase elastic modulus, fracture strength, energy. We found inlet atoms serve a source second terminate C dangling bonds form more stable C-H bonds, separating flakes promoting binding with material.