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<p>The demand for environmentally friendly fiberboards is increasing with the global development of green building materials. Therefore, the aim of this study is to prepare environmentally friendly high density fiberboard using waste wood fibers under different pressures. And to study the effect of different high pressure conditions on its mechanical, physical and thermal properties. In this work, SEM and XRD are utilized to observe the microscopic surface structure of the fiberboard and the physical phase composition of the compounds. The water resistance test shows that the fiberboard prepared in this experiment has strong water resistance, and the water absorption and water thickness expansion values are the smallest at the molding pressure of 13.50&#xa0;MPa and 14.50&#xa0;MPa, which are 7.96% and 1.38%, respectively. Meanwhile, the mechanical property tests show that the maximum static flexural strength and the maximum modulus of elasticity of the fiberboard are 28.51&#xa0;MPa and 7658.20&#xa0;MPa, respectively, when the molding pressure is 15.00&#xa0;MPa. Moreover, after flame test, the fiberboard has excellent fireproof performance. Overall, it promotes the development of wood fiber boards within the field of building materials.</p>

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Effect of High-Pressure Conditions on the Properties of High-Density Fiberboards Made from Wood Waste Fibers

  • 期刊论文

  • 发表日期：

    2025年5月2日

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  • Xiaoneng Chen,
  • Fuqiang He,
  • Fajiang Chen,
  • Yuan Dai

摘要

The demand for environmentally friendly fiberboards is increasing with the global development of green building materials. Therefore, the aim of this study is to prepare environmentally friendly high density fiberboard using waste wood fibers under different pressures. And to study the effect of different high pressure conditions on its mechanical, physical and thermal properties. In this work, SEM and XRD are utilized to observe the microscopic surface structure of the fiberboard and the physical phase composition of the compounds. The water resistance test shows that the fiberboard prepared in this experiment has strong water resistance, and the water absorption and water thickness expansion values are the smallest at the molding pressure of 13.50 MPa and 14.50 MPa, which are 7.96% and 1.38%, respectively. Meanwhile, the mechanical property tests show that the maximum static flexural strength and the maximum modulus of elasticity of the fiberboard are 28.51 MPa and 7658.20 MPa, respectively, when the molding pressure is 15.00 MPa. Moreover, after flame test, the fiberboard has excellent fireproof performance. Overall, it promotes the development of wood fiber boards within the field of building materials.