METHOD TO PRODUCE HIGH-QUALITY CARBON FIBER USING LIGNIN

METHOD TO PRODUCE HIGH-QUALITY CARBON FIBER USING LIGNIN

The present application is directed to a method of producing a lignin-based carbon fiber. This method comprises providing a lignin-containing material; producing a lignin fiber from the lignin-containing material; stabilizing the lignin fiber under tension, where the tension is adjusted during said...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Razzaq, Moham Ed Abdur, Luo, Yixin, Bai, Xianglan
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:The present application is directed to a method of producing a lignin-based carbon fiber. This method comprises providing a lignin-containing material; producing a lignin fiber from the lignin-containing material; stabilizing the lignin fiber under tension, where the tension is adjusted during said stabilizing such that the maximum bearable tension is applied to the lignin fiber; and carbonizing the lignin fiber under tension to produce a carbon fiber, where said carbonizing is carried out at a temperature below 1200° C. and where the tension during said carbonizing is adjusted to avoid shrinkage. The present application is also directed to a lignin-based carbon fiber and molded articles containing such fibers.