Latex foam based upholstered furniture has been widely used in our daily lives. Its high fire risk can be reflected by its extremely thin surface layer together with a cellular structure sponge. Therefore, through this study, an experimental study was carried out to address the fire behaviors of typical latex foams, including cotton, hemp, silk, and blending coated latex foam. The thermal properties and structure of these fabric materials and latex foam were analyzed experimentally, together with the analysis of the behind heat transfer mechanism and the calculation of flame spread rate. Experimental results showed that the thin surface fabric covered on the surface of the latex foam could prolong the combustion process for more than 150 s. The peak bottom flame area of the silk coated sample is only 40% of the uncoated one. The combustion residues of the surface fabric after the extinguishment were found composing of carbonized fabric and white ash. It was then known that the cotton fabric shows significant effects on the combustion processes due to dense residues. The average flame spread rate of the coated samples was about 22% of those uncoated ones. The porosity of the fabric residues on the surface played a key role in the flame spread on the latex foam surface. A flame spread rate model was developed and validated for the first time that considers the fabric porosity, which can provide a useful tool for the relevant fire risk evaluation for those practical fire scenarios with multi-layer combustible.

乳胶泡沫软垫家具已广泛应用于我们的日常生活中。其极高的火灾隐患可以通过其极薄的表层和多孔结构海绵来体现。因此，通过这项研究，进行了一项实验研究，以解决典型的乳胶泡沫的防火性能，包括棉，麻，丝和混合涂层乳胶泡沫。对这些织物材料和乳胶泡沫的热性能和结构进行了实验分析，并分析了其背后的传热机理和火焰蔓延率的计算。实验结果表明，覆盖在乳胶泡沫表面的薄表面织物可以将燃烧过程延长150 s以上。丝绸涂层样品的最大底部火焰面积仅为未涂层样品的40％。发现灭火后表面织物的燃烧残留物由碳化织物和白灰组成。众所周知，棉织物由于浓稠的残留物对燃烧过程显示出显着的影响。涂层样品的平均火焰蔓延率约为未涂层样品的22％。表面上的织物残留物的孔隙率在乳胶泡沫表面上的火焰蔓延中起关键作用。首次开发并验证了一种火焰扩散率模型，该模型考虑了织物的孔隙率，可为多层可燃物的实际火灾场景的相关火灾风险评估提供有用的工具。众所周知，棉织物由于浓稠的残留物对燃烧过程显示出显着的影响。涂层样品的平均火焰蔓延率约为未涂层样品的22％。表面上的织物残留物的孔隙率在乳胶泡沫表面上的火焰蔓延中起关键作用。首次开发并验证了一种火焰扩散率模型，该模型考虑了织物的孔隙率，可为多层可燃物的实际火灾场景的相关火灾风险评估提供有用的工具。众所周知，棉织物由于浓稠的残留物对燃烧过程显示出显着的影响。涂层样品的平均火焰蔓延率约为未涂层样品的22％。表面上的织物残留物的孔隙率在乳胶泡沫表面上的火焰蔓延中起关键作用。首次开发并验证了一种火焰扩散率模型，该模型考虑了织物的孔隙率，可为多层可燃物的实际火灾场景的相关火灾风险评估提供有用的工具。