フェノール系炭素繊維の収率と引張り強度に及ぼす炭素化雰囲気の影響

概要

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Phenolic resin-based carbon fibers were prepared in a stream of N_2 gas with and without reactive gases. With increasing flow rate of N_2 gas, yields of fibers increased. The fiber prepared in a stream of N_2 gas without reactive gases had the specific surface area of 2 m^2・g^<-1>, the tensile strength of 2000 kg・cm^<-2>, and the yield of 55%. The X-ray diffraction showed the interlayer spacing, d_<002>, of 0.38 nm and the crystallite size of 1.63 nm in the "c" direction. The fiber prepared in a stream of N_2 gas with reactive gases showed the area of 15.5 m^2・g^<-1>, the strength of 180 kg・cm^<-2> and the yield. of 43%. Pores and cavities were observed on the surface of the fibers prepared in a stream of N_2 gas with H_2O and O_2, respectively.
社団法人日本セラミックス協会の論文
1992-05-01