Random mat and fiber-reinforced composite material shaped product

Provided are a fiber-reinforced composite material shaped product which is isotropic and has excellent mechanical strength and a random mat for use as an intermediate material for the shaped composite material. The random mat includes reinforcing fibers having an average fiber length of 3 to 100 mm...

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Bibliographische Detailangaben
Hauptverfasser:	Ootsubo, Makoto, Sonoda, Naoaki, Ohki, Takeru
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BRAIDING CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS GENERAL PROCESSES OF COMPOUNDING KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRIMMINGS WADDING WORKING-UP
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Beschreibung
Zusammenfassung:	Provided are a fiber-reinforced composite material shaped product which is isotropic and has excellent mechanical strength and a random mat for use as an intermediate material for the shaped composite material. The random mat includes reinforcing fibers having an average fiber length of 3 to 100 mm and a thermoplastic resin, wherein the reinforcing fibers satisfy the following i) to iii). i) The reinforcing fibers have a weight-average fiber width (Ww) which satisfies the following equation (1). 0 mm < Ww < 2.8 mm ii) The reinforcing fibers have an average-fiber-width dispersion ratio (Ww/Wn), which is defined as a ratio of the weight-average fiber width (Ww) to a number-average fiber width (Wn), of 1.00 or more and 2.00 or less. iii) The reinforcing fibers have a weight-average fiber thickness which is smaller than the weight-average fiber width (Ww) thereof.