Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on the Preparation and Flame Retardancy of Compatibilized Blend/Layered Silicate Nanocomposites with Inorganic Flame Retardant

무기계난연제 첨가형 상용화블렌드/층상실리케이트 나노복합재료의 제조 및 난연특성에 관한 연구

  • 강영구 (호서대학교 안전시스템공학과) ;
  • 송종혁 (리싸이텍코리아(주) 부설연구소)
  • Published : 2006.02.28
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Abstract

Olefinic compatibilized blend(R-PP/R-PE)/layered silicate composites have been prepared by melt intercalation technique directed from $Na^{+}$ montmorillonite(MMT) or organophilic montmorillonites while using magnesium hydroxide as flame retardant. Morphology and flammability properties were characterized by X-ray diffraction(XRD), transmission electron microscopy(TEM), scanning electron microscopy(SEM), thermogravimetry analysis(TGA), limiting oxygen index(LOI), UL94 test. It is found that the compatibilized blend/layered silicate(Cloisite 20A) nanocomposites have a mixed immiscible-intercalated structure and there is better intercalation when a compatibilizer is combined with the polymer and layered silicate to be melt blended. A very large increase in the LOI value was observed with hybrid filler addition and further enhancement in thermal stability and compatibility of blend was obtained for the compatibilized blend containing small amount of layered silicate.

Keywords

References

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