Process for producing high-strength, high-modulus carbon fibers

Process for producing high-strength, high-modulus carbon fibers

A process of producing carbon fibers, which comprises oxidizing polyacrylonitrile filaments having a tensile strength at 240 DEG C. of 0.3 g/d or higher and a tensile modulus at 240 DEG C. of 2.0 g/d or higher in an oxidizing atmosphere under a high tension of 0.2 g/d or higher, and carbonizing the...

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Bibliographische Detailangaben
Hauptverfasser: YAMANE, SHOJI, HIGUCHI, TOMITAKE, YAMASAKA, KATSUMI
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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Beschreibung
Zusammenfassung:A process of producing carbon fibers, which comprises oxidizing polyacrylonitrile filaments having a tensile strength at 240 DEG C. of 0.3 g/d or higher and a tensile modulus at 240 DEG C. of 2.0 g/d or higher in an oxidizing atmosphere under a high tension of 0.2 g/d or higher, and carbonizing the oxidized filaments under a high tension.