Utilization of Mass of Industrial Hemp in the Production of Medium-density Fibreboards (MDF)
In the near past, industrial hemp (Cannabis sativa L. subsp. sativa) found main application in the production of ropes and fabrics. At the present moment, this crop finds increasingly big application for pharmaceutical purposes and in the cosmetics industry. As a result of which not only hurds, but whole stalks remain as waste from this production. On the other hand, MDF, which on a world scale are the second production of wood-based boards in terms of volume after that of veneer plywood, allow at least partial inclusion of non-woody lignocellulosic raw materials in their composition. That is why, in this paper, an investigation about the possibility for inclusion of mass of hemp stalks in the MDF composition is presented. Under laboratory conditions, previously washed hemp stalks were defibred. The defibration was performed in a laboratory crusher defibrator for 2 min. Under laboratory conditions, MDF with participation of mass of hemp stalks form 0% to 100% in the MDF composition were produced. The content of mass of hemp stalks was increased by a step of 10%. The boards were produced at a temperature of hot pressing of 185 °C, with 10% participation of urea-formaldehyde resin (UFR) and have a density of 850 kg/m3. The effect of the content of mass of hemp stalks on the physicomechanical indicators of MDF was established. Regression equations for this effect on the individual physicomechanical indicators were also derived. It has been established in case of increase of what share in the composition of boards, most significant deterioration of the MDF indicators is observed. On this basis, a recommendation for the maximum justified content of mass of hemp stalks in the MDF composition was derived.
Keywords:
MDF, non-woody lignocellulosic raw material,
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- 1. Fajrin, Jauhar, Herlina Sari, Nasmi . (2018) Tensile Properties of Lignocellulosic Composites: A Comparison Analysis Between Natural Fibre Composites (NFCs) and Medium Density Fiber (MDF). Jurnal Spektran Vol. 6, No. 1., pp. 111 – 116. e-ISSN: 2302-2590.2. Garcia-Jaldon, C., Dupeyre, D. and Vignon, M.R. (1998) Fibres from semi-retted hemp bundles by steam explosion treatment. Biomass and Bioenergy.3. Kabir, M.M., Wang, H. and Lau, K.T. (2012). Mechanical properties of chemically-treated hemp fibre reinforced sandwich composites. Composites: Part B 43.4. Mahieu, A., Lenormand H., Leblanc, N. and Vive, A. (2015). 100% Bio-based Particleboards Based On New Agricultural Wastes. First International Conference on Bio-based Building Materials. Clermont-Ferrand, France June 22nd - 24th 2015, pp. 1-6.5. Mohanty, A.K., Misra, M. and Drzal, L.T. (2002) Sustainable bio-composites from renewable resources: Opportunities and challenges in the green materials world. Journal of Polymers and the Environment 10.6. Radosavljevic, Lj., Pecenka, R., and Fürll, Ch. Natural Binders for Fibreboard Made of Hemp. International Conference on Flax and Other Bast Plants, pp. 70-74. ISBN 978-0-9809664-0-4.7. Schöpper, Ch. and Alireza Kharazipour, A. (2009). Production of innovative hemp based three-layered particleboards with reduced raw densities and low formaldehyde emissions. International Journal of Materials and Product Technology. DOI: 10.1504/IJMPT.2009.027842 pp. 46-59.8. Selinger., J. and Wimmer, R. (2015). A Novel Low-Density Sandwich Panel Made from Hemp. Wood 2015: Innovations in wood materials and processes Brno, Czech Republic, May 2015, pp. 93-94.9.Thakur, V.K. (2014). Green Composites from Natural Resources. Taylor and Francis Group. ISBN 13: 978-1-4665-7070-2.10. Thoemen, H., Irle, M., and Semek M. (2010). Wood-Based Panels An Introduction for Specialists. Brunel University Press. ISBN 978-1-902316-82-6.11. EN 310:1993 Wood-based panels - Determination of modulus of elasticity in bending and of bending strength.12. EN 316:2009 Wood fibreboards - Definition, classification and symbols.13. EN 317:1998 Particleboards and fibreboards. Determination of swelling in thickness after immersion in water.14. EN 323:1993 Wood-based panels - Determination of density.15. EN 622-5:2010 Fibreboards - Specifications - Part 5: Requirements for dry process boards (MDF).16. https://www.konop.bg
- Yayın Aralığı: Yılda 4 Sayı
- Başlangıç: 2016
- Yayıncı: Bülent VEREP
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