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The Improvements for Fire Retardancy and Radiation Resistance of Chloroprene Rubber

클로로프렌 고무의 난연성 및 내방사선 특성 향상

  • 김기엽 (한국원자력연구소 방사선이용연구부) ;
  • 이청 (한국원자력연구소 방사선이용연구부) ;
  • 류부형 (동국대학교 안전공학과)
  • Published : 2004.11.01

Abstract

This study has investigated radiation degradation of chloroprene rubber in the presence of some fire retardant. Ammonium polyphosphate, aluminium trihydroxide, magnesium hydroxide, calcium carbonate and antimony trioxide were selected as flame retardant. Samples were irradiated using a Co$^{60}$ ${\gamma}$ -ray and ray up to 2000 kGy at a dose rate of 5 kGy/hr in the presence of air atmosphere at room temperature. After irradiation, samples were assessed fire retardancy with electrical properties and mechanical properties. Some considerations concerning the effects of the fire retardants added to chloroprene rubber on the radiation and thermal stability of chloroprene rubber are presented. From fire retardancy with electrical and mechanical property measurements, it was found that addition of magnesium hydroxide resulted in maximum fire retardant effect.

Keywords

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