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A Study on Improvement of Fire-resistant and Flame-retardant Properties of Silicone Rubber Composites Containing Perlite

펄라이트를 첨가한 실리콘 고무 복합체의 내화 및 난연 특성 향상에 관한 연구

  • Lee, Byung-Gab (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Lee, Jong-Hyeok (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Bang, Dae-Suk (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Won, Jong-Pil (Department of Civil and Environmental System Engineering, Konkuk University) ;
  • Jang, Il-Young (Department of Civil Engineering, Kumoh National Institute of Technology) ;
  • Park, Woo-Young (Dong-Nam E&C Co. Ltd.) ;
  • Jhee, Kwang-Hwan (Department of Applied Chemistry, Kumoh National Institute of Technology)
  • 이병갑 (금오공과대학교 고분자공학) ;
  • 이종혁 (금오공과대학교 고분자공학) ;
  • 방대석 (금오공과대학교 고분자공학) ;
  • 원종필 (건국대학교 사회환경시스템공학) ;
  • 장일영 (금오공과대학교 토목공학) ;
  • 박우영 (동남이엔씨(주)) ;
  • 지광환 (금오공과대학교 응용화학과)
  • Received : 2011.05.18
  • Accepted : 2011.06.24
  • Published : 2011.06.30

Abstract

In this study, silicone rubber filled with environmentally-friendly perlite was prepared by mechanical mixing in order to improve thermal properties, such as heat and fire resistances. We found that the properties of silicone rubber composites depended on perlite concentration by various characterization methods. Thermogravimetric analysis(TGA) indicated that the initial degradation temperature of silicone/perlite composite was higher than that of pristine silicone rubber. The gas torch test showed that the opposite side temperature of composite materials was remarkably low as compared to that of pristine silicone rubber. In addition, the composites containing 5 wt% and 10 wt% of perlite showed remarkable thermal stability at elevated temperatures according to the results of both fireproof furnace tests under the RABT condition and carbonization furnace tests. The images from a scanning electron microscope(SEM) showed the degree of dispersion of perlite in silicone rubber. Finally, it was confirmed that limited oxygen index(LOI) was increased with perlite concentration.

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