CONTINUED DEVELOPMENT OF BULK CARBON FIBER PRODUCTION USING HIGH QI COAL TAR PITCHES

摘要

The bulk production of chopped carbon fibers from high QI pitches via centrifugal melt spinning (CMS) was investigated. CMS fiber mats were produced from coal tar pitch containing 24% QI. Considerable improvements have been made to the CMS feed and fiber collection systems. Tests have proved that the CMS is capable of operating as a true continuous fiber production process. This paper reports on the continued refinement of the CMS process as a viable and economic method for producing carbon fibers and activated carbon fibers from coal-derived feedstocks. Processing conditions and techniques for producing carbon fibers and activated carbon fibers are also presented.