The aim of this study was to investigate the flammability of ecologically friendly, 100% natural larch and poplar bark-based panels bonded with clay. The clay acted as a fire retardant, and it improved the fire resistance of the boards by 12–15% for the surface and 27–39% for the edge of the testing specimens. The thermal conductivity was also analyzed. Although the panels had a density ranging from 600 to 900 kg/m³, thermal conductivity for the panel with a density of 600 kg/m³ was excellent, and it was comparable to lightweight insulation panels with much lower densities. Besides that, the advantage of the bark clay boards, as an insulation material, is mostly in an accumulative capacity similar to wood cement boards, and it can significantly improve the climatic stability of indoor spaces that have low ventilation rates. Bark boards with clay, similar to wood cement composites (wood wool cement composites and wood particle cement composites), have low mechanical properties and elasticity. Therefore, there their use is limited to non-structural paneling applications. These ecologically friendly, 100% natural and recyclable composites can be mostly used with respect to their thermal insulation, acoustics and fire resistance properties.

中文翻译：

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增强了与粘土粘合的树皮基面板的防火性

这项研究的目的是研究生态友好的100％天然落叶松和杨树皮基粘土与黏合板的可燃性。粘土起着阻燃剂的作用，它使板的表面耐火性提高了12–15％，对试样边缘的耐火性提高了27–39％。还分析了热导率。尽管面板的密度为600至900 kg / m ³，但面板的导热系数为600 kg / m ³非常好，可与密度低得多的轻质隔热板相媲美。除此之外，树皮粘土板作为绝热材料的优势主要在于其累积能力类似于木质水泥板，并且可以显着改善通风率低的室内空间的气候稳定性。类似于木材水泥复合材料（木材羊毛水泥复合材料和木材颗粒水泥复合材料）的粘土树皮板具有较低的机械性能和弹性。因此，它们的使用仅限于非结构镶板应用。这些具有生态友好性，100％天然且可回收的复合材料在隔热，隔音和耐火性能方面可以被广泛使用。