Ultra-lightweight foam-core fibreboard with 19 mm thickness was produced with a novel one-step process using resinated wood fibres for the faces and expandable polystyrene (EPS) as core layer material. The aim of the current study was to investigate the panel properties produced with different EPS bead diameter (0.5, 1.5, and 2.5 mm) and surface layer thickness (1, 2, 3, 4, and 5 mm). The EPS bead diameter showed a significant effect on the properties of foam-core fibreboard. The most uniform foam with the smallest cell size and highest cell density was observed in panels with smaller EPS beads, which also resulted in a remarkable increase in bending strength and edge screw withdrawal resistance (SWR) of the foam-core panels. Increasing the surface layer thickness from 1 to 5 mm significantly raised the foam-core panels’ density from 220 to 460 kg/m³, respectively. The higher the panel density, the higher the bending properties and the face SWR. The physical properties (thickness swelling and water absorption) of foam-core panels were negatively influenced by thickening of the surface layers. In general, foam-core fibreboards made with smaller EPS beads (0.5 mm) and 3 mm surface layers (density of 340 kg/m³) showed excellent potential for furniture manufacturing due to their acceptable properties according to EN622-5/P1 while still having nearly 55% lower density compared to conventional fibreboard density (750 kg/m³).

厚度为 19 毫米的超轻质泡沫芯纤维板采用新型一步法生产，表面采用树脂化木纤维，可发性聚苯乙烯 (EPS) 作为芯层材料。当前研究的目的是研究使用不同 EPS 珠直径（0.5、1.5 和 2.5 毫米）和表面层厚度（1、2、3、4 和 5 毫米）生产的面板特性。EPS珠粒直径对泡沫芯纤维板的性能有显着影响。在具有较小 EPS 珠粒的面板中观察到具有最小泡孔尺寸和最高泡孔密度的最均匀泡沫，这也导致泡沫芯板的弯曲强度和边缘螺钉拔出阻力 (SWR) 显着增加。³、分别。面板密度越高，弯曲性能和面驻波比就越高。泡沫芯板的物理特性（厚度膨胀和吸水率）受到表层增厚的负面影响。一般来说，由较小的 EPS 珠粒（0.5 毫米）和 3 毫米表层（密度为 340 千克/米³）制成的泡沫芯纤维板由于其符合 EN622-5/P1 的可接受特性而在家具制造方面显示出出色的潜力，同时仍然与传统纤维板密度 (750 kg/m ³ )相比，密度降低了近 55% 。