Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)

The Korean Society for Composite Materials (한국복합재료학회)
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Studies on Curing Behavior and Fracture Toughness of Tetrafunctional Epoxy Resin/Fluorine-containing Epoxy Resin Blend System

4관능성 에폭시 수지/불소를 함유한 에폭시 수지 블렌드 시스템의 경화거동 및 파괴인성에 관한 연구

  • Jin, Fan-Long (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Lee, Jae-Rock (Advanced Materials Division, Korea Research Institute of Chemical Technolog) ;
  • Park, Soo-Jin (Advanced Materials Division, Korea Research Institute of Chemical Technolog) ;
  • Shin, Jae-Sup (Department of Chemistry, Chungbuk National University)
  • Published : 2002.10.01
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Abstract

In this studies, curing behavior and mechanical properties of tetrafunctional epoxy resin (4EP)/ fluorine-containing epoxy resin (FEP) blend systems was investigated with 4, 4'-diaminodiphenol methane (DDM) as a curing agent. The cure activation energies $(E_a)$) were studied by Flynn-Wall-Ozawa's equation with dynamic DSC method. For the fracture toughness of the casting specimens, the critical stress intensity factor ($K_{IC}$) and the specific fracture energy ($G_{IC}$) were determined by fracture toughness test.

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