Properties of Bark Particleboard Bonded with Demethylated Lignin Adhesives Derived from Leucaena leucocephala Bark

作     者：Rafidah Md Salim Jahimin Asik Mohd Sani Sarjadi 

作者机构：Wood Testing LaboratoryFaculty of Tropical ForestryUniversity of Malaysia SabahKota KinabaluSabah88400Malaysia Industrial Chemistry ProgramFaculty of Science and Natural ResourcesUniversity of Malaysia SabahKota KinabaluSabah88400Malaysia 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2024年第12卷第4期

页      面：737-769页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：the financial support provided by UMS Great(GUG0217-1/2018) which played a crucial role in the completion of this study 

主　　题：Bark particleboard properties demethylated lignin lignin adhesives Leucaena leucocephala bark particles 

摘      要：Lignin extraction from bark can maximize the utilization of biomass waste,offer cost-effectiveness,and promote environmental friendliness when employed as an adhesive material in bark particleboard *** of fine(0.2 to 1.0 mm),medium(1.0 to 2.5 mm),and coarse(2.5 to 12.0 mm)sizes,derived from the bark of Leucaena leucocephala,were hot-pressed using a heating plate at 175℃for 7 min to create single-layer particleboards measuring 320 mm×320 mm×10 mm,targeting a density of 700 kg/m^(3).Subsequently,the samples were trimmed and conditioned at 20℃and 65%relative *** this study,we compared bark particleboard bonded with urea formaldehyde(UF)adhesive to fine-sized particleboard bonded with demethylated lignin *** results indicated that bark particleboards utilizing demethylated lignin and UF adhesives exhibited similar *** particleboard showed differences in modulus of elasticity(MOE)and modulus of rupture(MOR),while medium-sized particles exhibited significant variations in moisture content(MC)and water absorption(WA).Furthermore,the thickness swelling of coarse and medium-sized particles under wet and oven-dried conditions exhibited notable ***,the demethylated lignin adhesive extracted from *** bark demonstrated similar quality to UF adhesive,with particle size correlating inversely to the strength of the bark particleboard.