CARBON FIBER AND CATALYST FOR PRODUCTION OF CARBON FIBER

• Main Authors: KAMBARA EIJI, KITAZAKI AKIHIRO
• Format: Patent
• Language: English; Korean
• Published: 03.03.2011
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SPINNING; TEXTILES; THEIR RELEVANT APPARATUS; TRANSPORTING

A catalyst for production of a carbon fiber is obtained by dissolving or dispersing [I] a compound containing Fe element; [II] a compound containing Co element; [III] a compound containing at least one element selected from the group consisting of Ti, V, Cr, and Mn; and [IV] a compound containing at least one element selected from the group consisting of W and Mo in a solvent to obtain a solution or a fluid dispersion, and then by impregnating a particulate carrier with the solution or the fluid dispersion. By means of a step of bringing a carbon source into contact with the catalyst in a vapor phase, the carbon fiber is obtained which is tubular and in which a graphite layer is approximately parallel with the carbon fiber axis, and a shell is in a multi-walled structure.