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Korean Carbon Society (한국탄소학회)
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Effects of Fiber Surface-Treatment and Sizing on the Dynamic Mechanical and Interfacial Properties of Carbon/Nylon 6 Composites

  • Cho, Dong-Hwan (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Yun, Suk-Hyang (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Kim, Jun-Kyung (Polymer Hybrid Research Center, Korea Institute of Science and Technology) ;
  • Lim, Soon-Ho (Polymer Hybrid Research Center, Korea Institute of Science and Technology) ;
  • Park, Min (Polymer Hybrid Research Center, Korea Institute of Science and Technology) ;
  • Lee, Geon-Woong (Polymer Hybrid Research Center, Korea Institute of Science and Technology) ;
  • Lee, Sang-Soo (Polymer Hybrid Research Center, Korea Institute of Science and Technology)
  • Received : 2004.01.05
  • Accepted : 2004.03.11
  • Published : 2004.03.30
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Abstract

The effects of fiber surface-treatment and sizing on the dynamic mechanical properties of unidirectional and 2-directional carbon fiber/nylon 6 composites by means of dynamic mechanical analysis have been investigated in the present study. The interlaminar shear strengths of 2-directional carbon/nylon 6 composites sized with various thermosetting and thermoplastic resins are also measured using a short-beam shear test method. The result suggests that different surface-treatment levels onto carbon fibers may influence the storage modulus and tan ${\delta}$ behavior of carbon/nylon 6 composites, reflecting somewhat change of the stiffness and the interfacial adhesion of the composites. Dynamic mechanical analysis and short-beam shear test results indicate that appropriate use of a sizing material upon carbon fiber composite processing may contribute to enhancing the interfacial and/or interlaminar properties of woven carbon fabric/nylon 6 composites, depending on their resin characteristics and processing temperature.

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