CARBON FIBER PREPREG, METHOD FOR PRODUCING SAME AND CARBON FIBER REINFORCED COMPOSITE MATERIAL

Provided is a carbon fiber prepreg comprising carbon fiber bundles containing numerous carbon fiber single yarns and a matrix resin impregnated in the carbon fiber bundles, the value of the coefficient of variation, displayed as a percentage, of the number of the carbon fiber single yarns contained...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAGISHI, HIROYUKI, OZEKI, YUKI, KOJITANI, GO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING LAUNDERING MAKING GRANULES OR PREFORMS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Provided is a carbon fiber prepreg comprising carbon fiber bundles containing numerous carbon fiber single yarns and a matrix resin impregnated in the carbon fiber bundles, the value of the coefficient of variation, displayed as a percentage, of the number of the carbon fiber single yarns contained per unit area being 10% or less, wherein in each unit area, the width and the depth from the surface of the carbon fiber prepreg in the cutting plane when the carbon fiber prepreg is cut at right angles to the array direction (direction of the fiber axis) of the carbon fiber bundles are 100 µm and 30 µm respectively. Also provided is a carbon fiber prepreg comprising carbon fiber bundles containing numerous carbon fiber single yarns and a matrix resin impregnated in the carbon fiber bundles, wherein a projected area of a carbon fiber single yarn which has a fiber orientation angle of 0°±3° or more is 2% or less of the projected area of all carbon fiber single yarns.