Process for producing carbon fiber fabrics

A process for producing a process for producing a two- or three-dimensional carbon fabric, which process includes melt-spinning (a) an optically anisotropic carbonaceous pitch having an optically anisotropic phase content of 60 to 100%, subjecting the thus- infusibilized fibers to a primary heat tre...

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Bibliographic Details
Main Authors UEMURA; SEIICHI, SOHDA; YOSHIO, IDO; YASUZI
Format Patent
LanguageEnglish
Published 22.04.1997
Edition6
Subjects
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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Summary:A process for producing a process for producing a two- or three-dimensional carbon fabric, which process includes melt-spinning (a) an optically anisotropic carbonaceous pitch having an optically anisotropic phase content of 60 to 100%, subjecting the thus- infusibilized fibers to a primary heat treatment at a temperature greater than 1000 DEG and not higher than 2500 DEG C. to produce primary heat treated fibers having a tensile strength not lower than 300 kg/mm2 and a breaking elongation in the range of 0.4% to 10%, preparing a two- or three-dimensional fabric from the primary heat treated fibers and then subjecting the two- or three-dimensional fabric to a secondary heat treatment at a temperature which is at least 50 DEG higher than the temperature used in the primary heat treatment, the temperature in the secondary heat treatment being higher than 1050 DEG C. and no higher than 3300 DEG C.
Bibliography:Application Number: US19950370027