CARBON FIBER STRAND AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a carbon fiber strand having high impregnating properties of a resin and a high NOL-ring strength, etc., when converted into a composite material. SOLUTION: The carbon fiber strand provides ≥0.3 value of PO obtained by substituting a void volume A (ml/g) of the carbo...

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Hauptverfasser:	MATSUKI TOSHITSUGU, MUTO SHINICHI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a carbon fiber strand having high impregnating properties of a resin and a high NOL-ring strength, etc., when converted into a composite material. SOLUTION: The carbon fiber strand provides ≥0.3 value of PO obtained by substituting a void volume A (ml/g) of the carbon fiber strand corresponding to 0.3-50 μm pore diameter determined by measuring the pore diameter with a mercury porosimeter into formula (1) PO=A×B/(C/12,000)×(5/D) (1) [wherein, B is the yield (g/m) of the carbon fiber strand; C is the number of single filaments of the carbon fiber strand; and D is the single filament diameter (μm) of the carbon fiber strand]. A method for producing the carbon fiber strand is provided. COPYRIGHT: (C)2004,JPO