화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.14, No.5, 564-567, September, 2008
DOI10.1016/j.jiec.2008.04.003  Export Citation
Fracture toughness of difunctional epoxy resin/thermally latent initiator system modified with polyesters
Fan-Long Jin, and Soo-Jin Park1, †
  • Department of Chemical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, People’s Republic of China
  • 1Department of Chemistry, Inha University, Nam-gu, Incheon 402-751, South Korea
E-mail:
Aromatic polyester was used as a modifier to improve the toughness of diglycidylether of bisphenol A (DGEBA)/thermally latent initiator system. N-Benzylquinoxalinium hexafluoroantimonate (BQH) was used as a thermally latent initiator for thermal curing, and the content of polyester was varied from 2.5 to 10 wt%. The thermal latent behaviors, thermal properties, and mechanical interfacial properties of DGEBA/polyester blends were investigated with several techniques. It was found that the BQH as a latent initiator showed the activity at a comparably narrow temperature range in the present study. The KIC of the DGEBA/polyester blends was higher than that of the neat epoxy system and exhibited a maximum value at 5 wt% polyester. The scanning electron microscope (SEM) results showed rough and plastic deformation morphologies in the DGEBA/polyester blends.
Keywords:Epoxy resins;Polyester;Thermal latent initiator;Thermal stabilities;Fracture toughness
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