Process for producing carbon fiber felt

Details Process for producing carbon fiber felt Process for producing carbon fiber felt

1992-10-16

1994-02-01

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

28107, 28112, 156 626, 156 628, 156148, 156155, 156167, 264 291, 264 297, 4234471, 4234472, 4234473, 4234474, 4234478, 428113, 428300, 428408, D04H 108

Patent

active

052831132

ABSTRACT:
There is disclosed a process for continuously producing a pitch-based carbon fiber felt which comprises the steps of spinning a pitch by melt blow spinning system; accumulating the spun fibers as a pitch fiber web composed of the aggregate of short fibers; continuously cross lapping the web; subsequently stabilizing the cross lapped web; carbonizing and/or activating the stabilized web; and then felting the resultant web. The above-mentioned process is capable of efficiently producing a pitch-based carbon fiber felt having uniform unit weight and excellent physical properties and well suited for use in high-performance thermal insulator, cushioning thermal insulator, filter media and adsorbent for water purification and solvent recovery, etc.

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