Fibers and Polymers

The Korean Fiber Society (한국섬유공학회)
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Compressional Behavior of Carbon Nanotube Reinforced Mesophase Pitch-based Carbon Fibers

  • Ahn Young-Rack (Enviro-polymers Design Lab., Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University) ;
  • Lee Young-Seak (Department of Fine Chemical Engineering & Chemistry, Chungnam National University) ;
  • Ogale A.A. (Department of Chemical Engineering and Center for Advanced Engineering Fibers and Films, Clemson University) ;
  • Yun Chang-Hun (School of Applied Chemistry and Chemical Engineering, Sungkyunkwan University) ;
  • Park Chong-Rae (Enviro-polymers Design Lab., Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University)
  • Published : 2006.03.01
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Abstract

The tensile-recoil compressional behavior of the carbon nanotube reinforced mesophase pitch (MP)-based composite carbon fibers (CNT-re-MP CFs) was investigated by using Instron and SEM. The CNT-re-MP CFs exhibited improved, or at least equivalent, compressive strength as compared with commercial MP-based carbon fibers. Particularly, when CNT of 0.1 wt% was reinforced, the ratios of recoil compressive strengths to tensile strength of CNT-re-MPCFs were much higher (the difference is at least 10 % or higher) than those for the commercial counterparts and even than those for PAN-based commercial carbon fibers. FESEM micrographs showed somewhat different fractography from that of a typical shear failure as the CNT content increased.

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