Non-catalysed steam explosion (SE) pre-treatment was used to valorise agricultural residues of hemp shives and wheat straw obtaining fibre bundles with self-bonding property. Three industrial hemp varieties of Futura75, Uso31 and Finola were used in the study. The crops were pre-treated at SE conditions temperature (℃)/time (min) of 200/1, 200/3, 220/2, 240/1 and 240/3. The influence of SE pre-treatment on the crops was evaluated by the particle size fractionation, scanning electron microscopy, cellulose content and its degree of polymerization (DP). Binder-less board samples with a thickness of 6 mm and a density of 900 kg/m³ were obtained from pre-treated crops at a temperature of 175 ℃. The influence of SE pre-treatment on the obtained binder-less boards was evaluated by the properties of thickness swelling (TS), water absorption (WA), modulus of elasticity (MOE), bending strength (MOR) and internal bonding strength (IB). The results show that increasing SE severity significantly decreased particle size and cellulose DP. Both factors of SE temperature and time significantly influence the obtained binder-less boards properties improving WA and IB up to SE240/3, and bending properties up to SE240/1. The best evaluation of binder-less boards was achieved by the crops pre-treated at SE conditions between 220/2 and 240/1 with the average property values of TS 9 %, WA 35 %, MOE 4482 N/mm², MOR 22.1 N/mm² and IB 0.54 N/mm². The observed differences between the properties of the binder-less boards from pre-treated hemp shives indicate to the structural differences of the hemp varieties the most suitable being Uso31.

非催化蒸汽爆炸 (SE) 预处理用于评估大麻碎屑和麦秆的农业残留物，获得具有自粘合性能的纤维束。研究中使用了 Futura75、Uso31 和 Finola 三种工业大麻品种。在200/1、200/3、220/2、240/1和240/3的SE条件温度(℃)/时间(min)下对作物进行预处理。通过粒度分级、扫描电镜、纤维素含量及其聚合度(DP)评价SE预处理对作物的影响。厚度为 6 mm，密度为 900 kg/m ^{3 的无}粘合剂板样品从预处理的作物中获得，温度为 175 ℃。通过厚度膨胀（TS）、吸水率（WA）、弹性模量（MOE）、弯曲强度（MOR）和内部结合强度（IB）等性能评价SE预处理对所得无粘合剂板的影响。 ）。结果表明，随着 SE 严重程度的增加，颗粒尺寸和纤维素 DP 显着降低。SE 温度和时间这两个因素显着影响所获得的无粘合剂板的性能，将 WA 和 IB 提高到 SE240/3，将弯曲性能提高到 SE240/1。无粘合剂板的最佳评估是通过在 220/2 和 240/1 之间的 SE 条件下预处理的作物获得的，其平均性能值为 TS 9 %、WA 35 %、MOE 4482 N/mm ²、MOR 22.1牛/毫米²和IB 0.54 N/mm ²。观察到的来自预处理的大麻碎屑的无粘合剂板的特性之间的差异表明，最适合的大麻品种是 Uso31 的结构差异。