Castor oil based polyurethane adhesive content on OSSB produced with soybean straw
Autor(en): |
João Vitor Felippe Silva
Maria Fernanda Felippe Silva Bruno Santos Ferreira Juliano Fiorelli André Luís Christoforo Cristiane Inácio de Campos |
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Medium: | Fachartikel |
Sprache(n): | Portugiesisch |
Veröffentlicht in: | Ambiente Construído, Januar 2021, n. 1, v. 21 |
Seite(n): | 23-36 |
DOI: | 10.1590/s1678-86212021000100491 |
Abstrakt: |
Oriented Structural Straw Board (OSSB) panels are composites made from straw originally from agricultural residues and non-formaldehyde based adhesive, whose main application is for construction as a closing and ceiling material. The objective of this study was to evaluate the effect of the polyurethane adhesive content on physical and mechanical properties of OSSB produced with locally available SbS (soybean straw). Four castor oil based polyurethane ratios (6%, 9%, 12% and 15%, by mass of the SbS) were tested. OSSB was evaluated according to European standards for wood-based composites; also, a physical and chemical characterization of the SbS was performed. SbS has an irregular shape, which reduced the OSSB mechanical performance due to the low densification of the composite and the development of transversal cracks on the SbS after the OSSB manufacturing process. The static bending and thickness swelling performance of SbS OSSB was not improved by the increase of polyurethane adhesive content. SbS low ash content and neutral pH extractives indicates that probably ist chemical properties should not affect the setting of the adhesive. |
Lizenz: | Dieses Werk wurde unter der Creative-Commons-Lizenz Namensnennung 4.0 International (CC-BY 4.0) veröffentlicht und darf unter den Lizenzbedinungen vervielfältigt, verbreitet, öffentlich zugänglich gemacht, sowie abgewandelt und bearbeitet werden. Dabei muss der Urheber bzw. Rechteinhaber genannt und die Lizenzbedingungen eingehalten werden. |
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10506872 - Veröffentlicht am:
25.11.2020 - Geändert am:
02.06.2021