PITCH COMPOSITIONS FOR SPINNING INTO CARBON ARTICLES AND METHODS RELATING THERETO

PITCH COMPOSITIONS FOR SPINNING INTO CARBON ARTICLES AND METHODS RELATING THERETO

Pitch compositions suitable for spinning may comprise: a pitch having a softening point (SP) below 400° C. and is capable of achieving a radial Hencky strain prior to break of about 0.7 to about 10, at spinning temperature (Ts) ranging from about SP−30° C. to about SP+80° C. Methods for producing a...

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Bibliographische Detailangaben
Hauptverfasser: EDMOND, Kazem V, SMITH, Stuart E, GOPINADHAN, Manesh, CHASE, Clarence E, FERRY, William M, ALVAREZ, Nicolas J, RYAN, Daniel J, YOON, Heedong
Format: Patent
Sprache:eng ; fre ; ger
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:Pitch compositions suitable for spinning may comprise: a pitch having a softening point (SP) below 400° C. and is capable of achieving a radial Hencky strain prior to break of about 0.7 to about 10, at spinning temperature (Ts) ranging from about SP−30° C. to about SP+80° C. Methods for producing a carbon fiber from a pitch composition at a temperature within a spinning temperature (Ts) range may comprise determining a temperature range wherein the maximum radial Hencky strain (εR) lies above a minimum process radial Hencky strain, and wherein the minimum process radial Hencky strain is within a range of about 0.7 to about 10. The spinning temperature (Ts) range may be determined by measuring a maximum radial Hencky strain (εR) prior to break at a series of different temperatures and strain rates. Carbon fiber composites may comprise of the said carbon fiber.