| 초록 |
Poly(methyl methacrylate) (PMMA) is transparent, hard, and tough at room temperature. In general, further improvements in mechanical properties are carried out by using either rubbery materials that impart toughness or reinforcements of high aspect ratio to impart mechanical strength. Numerous plastics/property-modifier composite systems have been studied and the variation in the mechanical properties is known to be influenced by a variety of factors including the content, the type, and the particle size of property-modifier. The addition of surface modified graphite nanoplatelets (GNPs) has been found to be useful as reinforcement in brittle polymers. GNPs, as an alternative to rather expensive carbon nanotubes, are investigated as reinforcement in composites with PMMA because of their two-dimensional high aspect ratio geometry. The surface modification of GNPs played an important role in giving higher mechanical strength of composites. |
