초록 |
Substantial amounts of aluminum (Al) can be incorporated into graphene nanoplatelets (GnPs) by ball-milling graphite in the presence of solid Al beads. AlGnPs contain a considerable amount of Al (30.9 wt%, by TEM energy dispersive X-ray spectrum) and display good dispersibility in various solvents, including water. Composite films from aqueous AlGnP/poly(vinyl alcohol) solutions are cast and tested for flame retardation. AlGnPs can serve as an outstanding flame retardant that operates by both chemical (condensation) and physical (cooling and blocking) mechanisms. AlGnPs will provide a promising option for a new, cost-effective, eco-friendly, yet efficient flame retardant. |