USE OF RESIDUES FROM THE CELLULOSE INDUSTRY AND SUGARCANE BAGASSE IN PARTICLEBOARDS

ABSTRACT The use of alternative materials such as lignocellulosic residues in the production of particleboards has increased considering that these residues are produced in large volumes and often do not have an appropriate destination. This research studied the use of residues from cellulose industries, sugarcane bagasse, and castor oil-based polyurethane resin in the production of wooden panels and evaluated the influence of using these residues on the physical and mechanical properties of the panels. The products were manufactured according to the Brazilian standard ABNT NBR 14810 and the requirements of the panels were evaluated based on national and international standards. All treatments partially met the regulatory requirements. The addition of bagasse led to an improvement in physical and mechanical properties, with treatment 2 (50% wood residue and 50% bagasse) presenting the best performance, which indicates the possibility of using panels with residues with non-structural purpose in environments to improve the thermoacoustic performance of rural buildings. The statistical analysis indicated that the percentage of bagasse was significant, improving the evaluated properties.

摘要 考虑到木质纤维素残渣产量巨大且常缺乏合理处置途径，以其作为刨花板生产的替代原料的应用日益增多。本研究探讨了纤维素工业残渣、甘蔗渣与蓖麻油基聚氨酯树脂在木质板材生产中的应用，并评估了上述残渣的添加对板材物理与力学性能的影响。本研究依照巴西标准ABNT NBR 14810制备板材试样，并依据国内外标准对板材性能要求进行评估。所有实验组均部分满足法规要求。添加甘蔗渣可提升板材的物理与力学性能，其中处理组2（50%木材残渣与50%甘蔗渣）表现最优，这表明可将含残渣的板材用于非结构场景，以改善乡村建筑的热声学性能。统计分析结果显示，甘蔗渣添加比例对所评估的板材性能具有显著提升作用。