Molecular structure effects of the pitches on preparation of activated carbon fibers from electrospinning
(주)코리아스칼라
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- 2016.04.02
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- 2011.06
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon letters / 12권 / 2호
ㆍ저자명 : Bo-Hye Kim, Arshad Hussain Wazir, Kap-Seung Yang, Yun-Hyuk Bang, Sung-Ryong Kim
영어 초록
Two pitches with different average molecular structures were electrospun and compared in terms of the properties of their fibers after oxidative stabilization, carbonization, and activation. The precursor with a higher molecular weight and greater content of aliphatic groups (Pitch A) resulted in better solubility and spinnability compared to that with a lower molecular weight and lower aliphatic group content (Pitch B). The electrical conductivity of the carbon fiber web from Pitch A of 67 S/cm was higher than that from Pitch B of 52 S/cm. The carbon fiber web based on Pitch A was activated more readily with lower activation energy, resulting in a higher specific surface area compared to the carbon fiber based on Pitch B (Pitch A, 2053 m2/g; Pitch B, 1374 m2/g).
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