Abstract:
The present invention relates to a carbon nanofiber and, more specifically, to production of a lignin complex, a method of producing a free cursor fiber by melt-spinning the complex, a lignin-based carbon fiber using a fiber-free cursor, and a method of producing the same.
Abstract:
PURPOSE: A method for fabricating a carbon-carbon composite fiber is provided to enhance carbon content, to easily fix a form, and to improve processability. CONSTITUTION: A carbon heater is manufactured from a carbon-carbon composite fiber. The carbon heater contains a hollow tube and a carbon filament. The carbon filament is sealed in the tube. A method for manufacturing the carbon filament comprises: a step of forming a mixture solution containing a carbon precursor material and an organic solvent(S1); a step of dipping the carbon fiber in the mixture solution(S2); a step of performing thermal treatment of the carbon fiber, converting the carbon precursor material into a carbon material; and a step of impregnating the carbon material on a carbon fiber. [Reference numerals] (S1) Preparing a mixture solution containing a carbon precursor material and an organic solvent; (S2) Dipping carbon fiber in the mixture solution; (S3) Stabilizing under oxidizing gas atmosphere; (S4) Carbonizing under inert atmosphere