Öz
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.
Anahtar Kelimeler
Destekleyen Kurum
University of Forestry, Sofia, Bulgaria
Proje Numarası
153/08.03.2017
Teşekkür
The investigations are part of the investigations under project No. 153/08.03.2017, financed by the Research Sector at the University of Forestry.
Kaynakça
- 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
Öz
Proje Numarası
153/08.03.2017
Kaynakça
- 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
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Bölüm | Makaleler |
| Yazarlar | |
| Proje Numarası | 153/08.03.2017 |
| Yayımlanma Tarihi | 31 Aralık 2019 |
| Gönderilme Tarihi | 23 Ekim 2019 |
| Kabul Tarihi | 25 Aralık 2019 |
| Yayımlandığı Sayı | Yıl 2019 Cilt: 4 Sayı: 4 |
