Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on the Properties of Flame Retardant and Fire Safety of Silicone Rubbers Added Reinforcing Fillers

보강성 충진제를 첨가한 실리콘 고무의 난연 및 화재안전 특성에 관한 연구

  • Park, Seung Ho (Department of Safety Engineering, Korea National University of Transportation) ;
  • Lee, Sung Ill (Department of Safety Engineering, Korea National University of Transportation)
  • 박승호 (한국교통대학교 안전공학과) ;
  • 이성일 (한국교통대학교 안전공학과)
  • Received : 2019.03.27
  • Accepted : 2019.04.09
  • Published : 2019.07.01
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Abstract

A fire, be it caused intentionally or unintentionally, leads to economic loss and physical damage, and requires digestion. The number of fires is increasing yearly, and electrical fires account for more than 30% among the main causes of fires. Electric wires that catch fire typically employ silicone coatings; silicone has organic as well as inorganic properties. Silicon is a natural, nonexistent, synthetic product with numerous applications. In this study, a silicon rubber for application in wires was prepared by high-temperature vulcanization (HTV) with a Shore A hardness of 70. We report results for the flame retardancy test and the fire safety characteristics via inorganic analysis. For this, a quartz inorganic material was added to the wire specimen, and 18% powdered extinguishing agent ammonium phosphate and expanded vermiculite respectively. Thus, expanded vermiculite showed the best flame retardancy and fire safety characteristics.

Keywords

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Fig. 1. Flame retardation test system.

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Fig. 2. SEM photograph for (a) ammonium phosphate and (b) vermiculite.

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Fig. 3. Optical microscope photograph for (a) ammonium phosphate and (b) vermiculite.

Table 1. Flammability rating standard.

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Table 2. Appearance and basic properties.

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Table 3. Ammonium phosphate EDS analysis.

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Table 4. Vermiculite EDS analysis.

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Table 5. Ammonium phosphate flame retardant test result.

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Table 6. Vermiculite flame retardant test result.

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Table 7. Qurtz flame retardant test result.

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Table 8. After applying heat, the result.

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