Tureková Ivana, Ivanovičová Martina, Harangózo Jozef, Gašpercová Stanislava, Marková Iveta
Department of Technology and Information Technologies, Faculty of Education, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 74 Nitra, Slovakia.
Department of Fire Engineering, Faculty of Security Engineering, University of Žilina, Univerzitná 1, 010 26 Zilina, Slovakia.
Polymers (Basel). 2022 Apr 19;14(9):1648. doi: 10.3390/polym14091648.
Particleboards are used in the manufacturing of furniture and are often part of the interior of buildings. In the event of a fire, particleboards are a substantial part of the fuel in many building fires. The aim of the article is to monitor the effect of radiant heat on the surface of particle board according to the modified procedure ISO 5657: 1997. The significance of the influence of heat flux density and particle board properties on its thermal resistance (time to ignition) was monitored. Experimental samples were used particle board without surface treatment, with thicknesses of 12, 15, and 18 mm. The samples were exposed to a heat flux from 40 to 50 kW·m. The experimental results are the initiation characteristics such as of the ignition temperature and the weight loss. The determined factors influencing the time to ignition and weight loss were the thickness and density of the plate material, the density of the radiant heat flux and the distance of the particle board from the radiant source (20, 40, and 60 mm). The obtained results show a significant dependence of the time to ignition on the thickness of the sample and on the heat flux density. The weight loss is significantly dependent on the thickness of the particle board. Monitoring the influence of time to ignition from sample distance confirmed a statistically significant dependence. As the distance of the sample from the source increased, the time to ignition decreased linearly. As the distance of the sample from the source increased, the time to ignition increased.
刨花板用于家具制造，并且常常是建筑物内部的一部分。在发生火灾时，刨花板是许多建筑火灾中燃料的重要组成部分。本文的目的是按照修改后的ISO 5657:1997程序监测辐射热对刨花板表面的影响。监测了热通量密度和刨花板特性对其热阻（着火时间）影响的显著性。实验样品采用未经表面处理、厚度分别为12毫米、15毫米和18毫米的刨花板。样品暴露于40至50千瓦·平方米的热通量下。实验结果是诸如着火温度和重量损失等起始特性。确定的影响着火时间和重量损失的因素有板材的厚度和密度、辐射热通量的密度以及刨花板与辐射源的距离（20毫米、40毫米和60毫米）。获得的结果表明着火时间显著依赖于样品厚度和热通量密度。重量损失显著依赖于刨花板的厚度。监测样品距离对着火时间的影响证实了具有统计学意义的依赖性。随着样品与源的距离增加，着火时间线性减少。随着样品与源的距离增加，着火时间增加。
