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PREPREG AND FIBER REINFORCED COMPOSITE MATERIAL

The objective of the present invention is to provide a prepreg and a fiber reinforced composite material using this prepreg. This prepreg is very easy to handle, is suitable for producing a reinforced composite material in a short-time and without using an autoclave, and is capable of yielding a fiber reinforced composite material exhibiting excellent impact resistance, wherein the occurrence of voids has been suppressed. To attain the objective, this prepreg comprises a reinforced fiber [A] that is layered and partially impregnated with an epoxy resin composition containing an epoxy resin [B] and a hardener [C], the impregnation rate ? being 30 to 95%. In this prepreg, a thermoplastic resin [D] insoluble in the epoxy resin [B] is distributed unevenly over a surface on one side of the prepreg, and a portion not impregnated with the epoxy resin composition is localized in the layer of the reinforced fiber [A] on the side where the thermoplastic resin [D] is distributed unevenly. This prepreg has a localization parameter ?, which defines the degree of the localization to be in the range of 0.10<?<0.45.


» Number: WO2018181254A1 (A1)

» Publication Date: 18//2/04/1

» Applicant: TORAY INDUSTRIES?[JP]

» Inventor: WATARI RYOHEI?[JP]; SATO NARUMICHI?[JP] (1)

» More Information

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This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° [609203].

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