Effect of the addition of lignin on the physical-mechanical properties of particleboards made with pine/hydrangea stems

J. Juan D. Martínez A, Natalia Jaramillo, Catalina Álvarez-López, Álvaro Vásquez, Germán Quintana

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The effect of adding different lignins on the physical and mechanical properties of particleboards made with stems of hydrangea and pine using the urea–formaldehyde (UF) resin was evaluated. Four types of lignin were characterized by Fourier-transform infrared spectroscopy and Klason lignin: Cane Bagasse lignin, Pine China lignin, Kraft Brazil lignin, and ammonium lignosulfonate (LSA). Particleboards were prepared with four types of lignin in a 1:1 (w/w) UF/lignin ratio and compared with those prepared with the UF resin without lignin (control sample). Water absorption, thickness swelling, rupture modulus, and modulus of elasticity were measured. The type of lignin used does not have a statistically significant difference in the physical and mechanical properties and also a decrease in the physical properties of the particleboards compared with the control sample. The use of LSA in the 3:1 (w/w) UF/lignin ratio allows to elaborate particleboards with mechanical properties like those found in the control sample.

    Original languageEnglish
    Pages (from-to)15-20
    Number of pages6
    JournalInternational Wood Products Journal
    Volume13
    Issue number1
    DOIs
    StatePublished - 2022

    Bibliographical note

    Funding Information:
    We are grateful to the CIDI of the Universidad Pontificia Bolivariana for financing the project ?Synthesis of bio-resins from lignocellulosic derivatives for the manufacture of particleboard? with file number 622B-06/16-21. We also wish to thank the company Bioestibas for its financing and support for the development of this project. We are grateful to the CIDI of the Universidad Pontificia Bolivariana for financing the project ?Synthesis of bio-resins from lignocellulosic derivatives for the manufacture of particleboard? with file number 622B-06/16-21. We also wish to thank the company Bioestibas for its financing and support for the development of this project.

    Publisher Copyright:
    © 2021 IWSc, The Wood Technology Society of the Institute of Materials, Minerals and Mining.

    Keywords

    • Bio-resins
    • floriculture
    • formaldehyde emissions
    • hydrangea stems
    • lignocellulosic residues
    • pine

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