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US 2021/0180217 A1Published application
Methods to produce carbon fibers from carbon pitches
AssigneeWest Virginia University
InventorAlfred H. STILLER
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Abstract
In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to carbon fibers with improved properties, methods of making the same, and compositions and articles comprising the same. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Claims20
A process for preparing carbon fibers, the process comprising:
- a. converting coal to a low-softening point carbon pitch;
- b. extruding the pitch into carbon fibers;
- c. adding a graphite/graphene sheath to the carbon fibers;
- and
- d. calcining the carbon fibers;
- wherein the coal is selected from bituminous, sub-bituminous, lignite, and combinations thereof;
- wherein the pitch is an anisotropic mesophase carbon pitch;
- and
- wherein the pitch has a high oxygen content.
6 more elements
Dependencies are inferred from the claim text.