Traditional particle board can generate harmful indoor air emissions due to the volatile resin-based compounds present. This study investigated the preparation of sawdust particle board using the novel ionic liquid based fusion approach with [EMIM]OAc. The dissolution parameters were investigated using the thermal optical microscopy technique. The particle board sheets were prepared by hot pressing sawdust in the presence of ionic liquid (IL) ([EMIM]OAc) and subsequently purifying the fusion sawdust matrix from the IL with methanol. The fusion process of the sawdust particles was analysed with SEM and mechanical testing. The raw materials and the produced materials were investigated with elemental analysis, FTIR, and ¹³C-SS-NMR. IL fusion of the sawdust required a temperature above 150 °C, similar to the glass transition temperature (t_g) of lignin. At lower temperatures, strong particle fusion was not obtained. It was observed that the sawdust/IL weight ratio was an important parameter of the fusion process, and a 1:3 weight ratio resulted in the strongest particle boards with a tensile strength of up to 10 MPa, similar to commercial particle boards. The particle fusion process was also studied with a twin-screw extruder. The extrusion enhanced the fusion of the sawdust particles by increasing dissolution of the sawdust particles, which was subsequently seen in elevated tensile strength (20 MPa). The study provides a practical view of how sawdust-based particle board can be manufactured using ionic liquid-based fusion.

由于存在基于挥发性树脂的化合物，传统的刨花板会产生有害的室内空气排放物。这项研究调查了使用基于[EMIM] OAc的新型离子液体融合方法制备木屑刨花板。使用热光学显微镜技术研究了溶出参数。刨花板是通过在离子液体（IL）（[EMIM] OAc）存在下对木屑进行热压，然后用甲醇从IL中纯化熔融木屑基质制得的。通过SEM和机械测试分析了木屑颗粒的熔化过程。使用元素分析，FTIR和¹³对原材料和制成品进行了研究C-SS-NMR。木屑的IL熔融需要高于150°C的温度，类似于木质素的玻璃化转变温度（t _g）。在较低的温度下，没有获得强烈的粒子融合。观察到，锯末/ IL重量比是熔融过程的重要参数，与商业刨花板相似，重量比为1：3的刨花板强度最高，可达10 MPa。还使用双螺杆挤出机研究了颗粒熔融过程。挤压通过增加木屑颗粒的溶解而增强了木屑颗粒的熔合，这随后在升高的拉伸强度（20MPa）中可见。该研究提供了一种实用的观点，说明如何使用基于离子液体的熔合技术来制造基于木屑的刨花板。