INFUSIBILIZED POLYPHENYLENE ETHER FIBER, INFUSIBILIZED POLYPHENYLENE ETHER FORMED BODY, CARBON FIBER, ACTIVATED CARBON FIBER, CARBON FIBER FORMED BODY, ACTIVATED CARBON FIBER FORMED BODY, AND METHOD FOR MANUFACTURING SAME

• Main Authors: Kojo, Yusuke, Yasui, Akifumi, Okada, Takemasa
• Format: Patent
• Language: English
• Published: 08.06.2023
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; COTTON-WOOL; 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; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SPINNING; TEXTILES; THEIR RELEVANT APPARATUS; TRANSPORTING; TRIMMINGS; WADDING

In an infusibilized polyphenylene ether fiber of the present disclosure, an absorbance height ratio (A/B) between an absorbance height A at a wave number of 1694 cm−1 derived from C═O stretching vibration and an absorbance height B at a wave number of 1600 cm−1 derived from skeleton vibration due to carbon-carbon stretching of a benzene ring is 0.25 or more, and an absorbance height ratio (C/B) between an absorbance height C at a wave number of 1661 cm−1 derived from C═O stretching vibration and an absorbance height B at a wave number of 1600 cm−1 derived from skeleton vibration due to carbon-carbon stretching of a benzene ring is 0.75 or less, as measured by infrared spectroscopy.