FIBER REINFORCED POLYMER COMPOSITION WITH INTERLAMINAR HYBRIDIZED TOUGHENERS

摘要

The present application provides an innovative fiber reinforced polymer composition comprising a plurality of reinforcing fibers impregnated by an adhesive composition comprising at least an interlayer toughening material and a high-aspect-ratio material. Both the high-aspect-ratio material and the interlayer toughening material may be localized on the surface of the plurality of reinforcing fibers and a substantial amount of the high-aspect ratio material may be located closer to the plurality of reinforcing fibers than is the interlayer toughening material. The high-aspect-ratio material forms a barrier layer to keep the interlayer toughening material away from the vicinity of the plurality of reinforcing fibers and compacted in an interlayer between two pluralities of the reinforcing fibers of the fiber reinforced polymer composition during curing; such a spatial distribution in the interlayer improves at least mode II interlaminar fracture toughness of the cured fiber reinforced polymer composition substantially.