PREPREG AND FIBER-REINFORCED COMPOSITE MATERIAL

PREPREG AND FIBER-REINFORCED COMPOSITE MATERIAL

Provided is a prepreg including reinforced fibers and a resin composition, in which when an average thickness of the prepreg is designated as D, a loss tangent tanδ at a slit processing temperature when the resin composition present in a portion located at a depth of D/10 from a surface of the prepr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Fujiwara, Takayuki, Kido, Daisuke, Kochi, Shinji, Takeda, Naoya, Aoki, Junichi, Aizawa, Bon
Format: Patent
Sprache:eng
Schlagworte:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Beschreibung
Zusammenfassung:Provided is a prepreg including reinforced fibers and a resin composition, in which when an average thickness of the prepreg is designated as D, a loss tangent tanδ at a slit processing temperature when the resin composition present in a portion located at a depth of D/10 from a surface of the prepreg is evaluated using an 8-mm plate at 50 rad/s or more is designated as y, and a water absorption amount when the prepreg collected in a size of 100×100 mm is immersed in 5-mm water for 5 minutes is designated as x (hereinafter, referred to as water pickup evaluation), a relationship of Formula 1 below is satisfied. Provided is a prepreg that provides a slit tape having excellent processability and quality, which is suitably used for producing a fiber-reinforced composite material using an automatic lamination device.