Process for producing carbon fibers

Details Process for producing carbon fibers Process for producing carbon fibers

1980-01-25

1981-03-31

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

264 292, 4234476, D01F 922

Patent

active

042593077

ABSTRACT:
The present invention relates to a process for producing carbin fibers which involves thermally stabilizing and carbonizing or graphitizing acrylic fibers containing 0.1-5 weight %, based on the weight of the fibers, of a straight chain silicone substance and further containing 0.1-5 weight %, based on the weight of the fibers, of a chemical substance which is selected from glycerine, polyethylene glycol, polypropylene glycol, alkyl derivatives thereof, and mixtures or compounds of two or more of these substances, and which generates only a residue less than 5 weight % under the action of heat at 240.degree. C. for one hour. According to applicant's invention, such problems as fluffiness, spreading, filament breakage etc. can be greatly reduced and it is possible to produce fibers free from agglutination or fusion and having high strength and high modulus of elasticity by heat-treatment in a short time.

REFERENCES:
patent: 3817700 (1974-06-01), Menikheim
patent: 4009248 (1977-02-01), Kishimoto et al.

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