화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.19, No.1, 66-71, January, 2011
DOI10.1007/s13233-011-0106-7  Export Citation
Graphite Oxides as Effective Fire Retardants of Epoxy Resin
Yu Rok Lee, Soon Cheol Kim, Hyung-il Lee, Han Mo Jeong†, Anjanapura V. Raghu, Kakarla Raghava Reddy, and Byung Kyu Kim1
  • Department of Chemistry, University of Ulsan, Ulsan, 680-749, Korea
  • 1Department of Polymer Science and Engineering, Pusan National University, Busan, 609-735, Korea
E-mail:
Graphite oxides (GOs) at various oxidation states were examined as fire retardants of epoxy resin. Excessive oxidation is detrimental to the fire retardant effect of GO because it generated a weak GO with reduced intumescent ability. GO manifested optimum fire retardant properties when it was properly oxidized due to the effective intumescence, demonstrating that intumescent GO needs to be strong enough to effectively push the epoxy resin matrix apart to cause efficient intumescence and generate a solid remnant char that acts as an efficient barrier. The fire retardant effect of GO was also reduced when a dispersion of GO in the epoxy resin was enhanced by sonication. This shows that the fine dispersion and disordering of layered structure of GO by the intercalation of epoxy molecules into the gallery of GO also reduced the intumescent ability, and the fire retardant effects of GO.
Keywords:graphite oxide;epoxy resin;fire retardant.
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