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

The Korean Society for Composite Materials (한국복합재료학회)
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Synthesis of Epoxidized Soybean Oil (ESO) and its Blends with Tetrafunctional Epoxy Resins

Epoxidized soybean oil(ESO)의 합성 및 4 관능성 에폭시 수지/ESO 블렌드 시스템의 물성

  • Lee, Jae-Rock (Advanced Materials Division, Korea Research of Institute of Chemical Technology) ;
  • Jin, Fan-Long (Advanced Materials Division, Korea Research of Institute of Chemical Technolog) ;
  • Park, Soo-Jin (Advanced Materials Division, Korea Research of Institute of Chemical Technology)
  • Published : 2003.04.01
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Abstract

In this work. a potential inexpensive epoxy resin. epoxidized soybean oil (ESO) was synthesized and applied as a toughening agent for 4.4'-tetradiglycidyl diaminodiphenyl methane (TGDDM). The chemical structure of ESO was characterized by FT-IR, $^1H NMR, and ^{13}C NMR$ spectroscopy. The curing behaviors. thermal stabilities. fracture toughness. and flexural strength of TGDDM/ESO blend systems were investigated by using the dynamic DSC. thermogravimetric analysis (TGA). and flexural tests. The thermal stabilities of TGDDM/ESO blend systems were decreased with increasing ESO contents. whereas the critical stress intensity factor ($K_{IC}$) and flexural strength ($\sigma_f$) were increased with ESO contents up to 10 wt% ESO.

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