DOMINANT HYDROCARBON WHICH CONTRIBUTES TO THE GROWTH OF VAPOR-GROWN CARBON-FIBERS

Benzene and several light paraffins were used as the initial carbon so urce for vapor grown carbon fiber production to clarify the dominant h ydrocarbon which contributes to fiber growth. When light paraffins wer e used as the initial carbon source, methane, ethylene and benzene wer e found to be the main hydrocarbons which exist at the reaction zone f or fiber growth. It was found that benzene is the actual contributor t o fiber growth, because a linear relationship between the benzene conc entration at the reaction zone and the initial growth rate of the fibe rs was observed. No relationships were observed for other hydrocarbons . Copyright (C) 1996 Elsevier Science Ltd