CARBON FIBER NONWOVEN FABRIC, PRODUCTION METHOD FOR CARBON FIBER NONWOVEN FABRIC, AND NONWOVEN FABRIC OF CARBON FIBER PRECURSER FIBERS

• Main Authors: SHIMOYAMA SATORU, HORIGUCHI TOMOYUKI, KAJIWARA KENTARO
• Format: Patent
• Language: English; Korean
• Published: 31.08.2016
• Subjects: BASIC ELECTRIC ELEMENTS; BRAIDING; COTTON-WOOL; ELECTRICITY; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; NON-WOVEN FABRICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TEXTILES; TRIMMINGS; WADDING

발명이 해결하고자 하는 과제는, 고체 고분자형 연료 전지의 전극 기재로서 우수한 도전성과 열전도성을 가지면서, 또한 가스 확산성, 배수성이 우수한 기재로서 유용한 탄소 섬유 부직포를 제공하는 것이다. 본 발명은, 탄소 섬유 부직포의 평균 구멍 면적보다도 큰 개구 면적을 갖는 복수의 비관통 구멍이 표면에 분산 형성된 탄소 섬유 부직포이며, 평면에서 보아 상기 비관통 구멍의 주연부에 파단 섬유가 관찰되지 않는 탄소 섬유 부직포이다. An object of the present invention is to provide a carbon fiber nonwoven fabric which has excellent electrical conductivity and thermal conductivity as an electrode base material for a polymer electrolyte fuel cell and which is useful as a base material excellent in gas diffusibility and drainage performance. The present invention provides a carbon fiber nonwoven fabric on a surface of which a plurality of non-through pores each having an opening area larger than the average pore area of the carbon fiber nonwoven fabric are dispersively formed, the carbon fiber nonwoven fabric having no broken fibers observed on the peripheral edge portions of the non-through pores in plane view.