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首页> 外文会议>International Building Physics Conference >Thermal behaviour of a gypsum fibre board associated with rigid polyurethane foam under standard fire conditions
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Thermal behaviour of a gypsum fibre board associated with rigid polyurethane foam under standard fire conditions

机译：标准火灾条件下与刚性聚氨酯泡沫相关的石膏纤维板的热行为

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Due to its low thermal conductivity (λ ≈ 20 mW/m.K), rigid polyurethane (PUR) foam has the potential to improve the thermal performance of buildings without increasing the thickness of construction elements. Nevertheless, PUR foam has the drawback of having a low resistance to fire: non-flaming thermal degradation of PUR starts at temperatures about 150-180°C, and flash-ignition around 300°C. Taking advantage of the stable behaviour of gypsum fibre at high temperature, a new panel composed of gypsum fibre and PUR has been developed, with the objective of resisting to fire for 30 minutes. At first, the thermal properties of the different materials at high temperature have been established. Then, a heat transfer model using temperature-dependent thermal properties and apparent specific heat capacity has been developed. Finally, the model has been compared to full-scale test results performed according to EN 1365-1.
机译：由于其低导热率（λ≈20mw/ m.k），刚性聚氨酯（PUR）泡沫具有可能改善建筑物的热性能而不增加构造元件的厚度。然而，PUR泡沫具有低耐火性的缺点：PUR的非火焰热劣化在约150-180℃的温度下开始，并闪光点火约300℃。利用高温下石膏纤维的稳定行为，开发了一种由石膏纤维和PUR组成的新面板，目的是抵抗火灾30分钟。首先，已经建立了高温下不同材料的热性质。然后，已经开发了使用温度依赖性热性能和表观特异性热容量的传热模型。最后，该模型已经与根据EN 1365-1进行的全规模测试结果进行了比较。

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