• 제목/요약/키워드: EPS Foam

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샌드위치 패널의 외부 색상과 내부 심재에 따른 이면 온도 변화 (The Back Side Temperature Variation According to Color of Sandwich Panel and Internal Core Material)

  • 박준서;김봉주
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 가을학술발표대회논문집
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    • pp.25-26
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    • 2023

  • The internal core material and external color of a sandwich panel have a significant impact on the performance of the sandwich panel. For use on roofs and walls, the internal core material and external color must be considered. Therefore, the surface and back side temperatures were measured for each exterior color and inner core material type. For the internal core materials, urethane foam and Expanded Poly Styrene(EPS), which are core materials mainly used in sandwich panels, were selected. As colors, black and ivory were selected according to brightness, and a total of five colors were selected: red, blue, and green, which are the three primary colors of light. As a result, there were differences in surface and temperature depending on the external color and type of internal core material. Regardless of the color, the temperature was measured lower for panels with urethane foam than for panels with an internal core of EPS. This is believed to have been influenced by the difference in thermal conductivity of urethane foam being 0.023W/(m·K) and that of EPS being 0.032W/(m·K). In addition, panels with a black exterior color were found to have higher surface and back temperatures than panels of other colors, and ivory-colored panels had lower back temperatures regardless of the core material. This is proportional to the brightness and light-absorbing characteristics.

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ISO 9705 - Full-scale Room Test 시험방법을 이용한 샌드위치 패널의 화재 특성 연구 (A Study on the Fire Characteristics of Sandwich Panels by ISO 9705 - Full-scale Room Test)

  • 권오상;유용호;김흥열;이정일
    • 한국화재소방학회논문지
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    • 제23권6호
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    • pp.39-45
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    • 2009

  • 본 연구에서는 샌드위치패널의 종합적인 화재특성을 파악하기 위하여 스티로폼, 난연 스티로폼, 우레탄폼, 난연 우레탄폼, 그라스울 샌드위치패널에 대해 국제 화재 시험 규격인 ISO 9705 시험(Full-scale room test)을 실시하였다. 이를 바탕으로 EN 13501-1 및 Eurefic Research Program에서 제시하고 있는 분류기준에 적용하여 샌드위치패널의 종합적인 화재특성을 분석하였다. 그 결과 그라스울 샌드위치 패널은 A class, 난연 우레탄폼과 난연 스티로폼 샌드위치 패널은 B class로 나타났다. 플래시오버가 발생한 스티로폼, 우레탄폼 샌드위치 패널은 E class 로 나타났다.

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