Process for producing carbon fabric

Details Process for producing carbon fabric Process for producing carbon fabric

1979-12-11

1980-12-02

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

264 292, 4234474, 4234476, D01F 922

Patent

active

042371090

ABSTRACT:
Provided is a process for producing a carbon fabric composed of carbon fibers having improved tensile strength and modulus of elasticity from a precursor fabric made of an acrylonitrile polymer fiber. The acrylonitrile polymer fiber used has a fusing temperature of at least 310.degree. C., contains not more than 0.1 wt. % of a residual solvent, and is prepared by a process wherein an acrylonitrile polymer comprised of at least 94 wt. % of acrylonitrile and not more than 6 wt. % of another comonomer and having an intrinsic viscosity of 1.4-2.3 is spun into filaments and then the filaments are stretched at a total stretching ratio of at least 6. The fiber of the fabric woven therefrom is treated with a transition metal-containing compound. The precursor fabric exhibits a free areal shrinkage of not more than 50% and has a weight per unit area falling within the specified range. The precursor fabric is heated in an oxidizing gas atmosphere at 200.degree.-400.degree. C. under conditions such that the fabric is permitted to shrink by at least 80% of the free areal shrinkage, and then, carbonized at at least 700.degree. C. in a non-oxidizing atmosphere.

REFERENCES:
patent: 3285696 (1966-11-01), Tsunoda
patent: 3497318 (1970-02-01), Noss
patent: 4069297 (1978-01-01), Saito et al.

Affiliated with

Also associated with

Rating

Process for producing carbon fabric does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing carbon fabric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing carbon fabric will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2283640