Carbon fibers derived from lignin

A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High T...

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Bibliographic Details
Main Authors GUL OMER, HAUSNER ANDREW ADAM, ALNASLEH BASSAM KAMAL, MILLER ROBERT E, CHEN CHONG, ASKEY BRIAN PAUL, ZHANG QINGFENG, ADRIANOWYCZ OREST L
Format Patent
LanguageEnglish
Published 22.07.2015
Subjects
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOUNDS OF UNKNOWN CONSTITUTION
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS
METALLURGY
NATURAL OR ARTIFICIAL THREADS OR FIBRES
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
SPINNING
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High Tg Lignin can be spun into a fiber. The fiber may then be stabilized to form a thermoset fiber. The time period for stabilizing the fiber is less than one hundred (100) hours.
Bibliography:Application Number: CN2013858836