Petar ANTOV, Viktor SAVOV, Nikolay NEYKOV

5783

Influence of the Composition on the Exploitation Properties of Combined Medium Density Fibreboards Manufactured with Coniferous Wood Residues

One of the main disadvantages of medium density fibreboards (MDF) in comparison with particleboards is the higher price of the panels, due to the energy-intensive defibration process. Studies on the possibilities for replacing some part of the wood fibre mass in the composition of MDF with coniferous sawmill residues (shavings) obtained from bandsaw, are presented in this article. The experimental plan is designed using the McLean and Anderson method for studying the properties of multi component systems in the presence of constraints on the components. The content of coniferous wood shavings varies up to 40%. The panels are manufactured with a density of 720 kg.m-3. The content of urea-formaldehyde resin varies from 8 to 14% in order to compensate the negative impact of the inclusion of coniferous wood shavings in the composition of the manufactured MDF panels. The main exploitation properties of the panels are determined. Experimental and statistical models on the influence of the studied factors are obtained by applying stepwise regression and optimization is performed to obtain the best exploitation properties of MDF panels. As a result of the study it was determined that in order to achieve the values of MDF properties, required by the respective standards, the maximum permissible content of coniferous wood shavings should be up to 10.6%, in which case the content of urea-formaldehyde resin should be above 10%. If the content of urea-formaldehyde resin is below 10%, the maximum permissible content of coniferous wood shavings should be up to 5%.
Keywords:

medium-density fibreboards (MDF), wood fibre mass, coniferous wood residues,

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  • [1] Ayrilmys N, Yurttas E, (2017) Effect of core layer fiber size and face to core layer ratio on properties of three layered fiberboard. BioResources 12(4):7964-7974.
  • [2] Bello RS (2017) Characterization of Sawdust Produced from Circular, Chain and Band Sawing Machines. Bioprocess Engineering. Vol. 1, No. 1:21-29.
  • [3] Benthien JT, Bahnisch C, Heldner S, Ohlmeyer M (2014) Effect of fiber size distribution on medium-density fiberboard properties caused by varied steaming time and temperature of defibration process. Wood and Fiber Science 46(2):175-185.
  • [4] Bergström D, Israelson S, Öhman M, Dahlquist SA, Gref R, Boman C (2008) Effects of raw material particle size distribution on the characteristics of Scots pine sawdust fuel pellets. Fuel Processing Technology 6.
  • [5] Thoemen H, Irle M, Sernek M (2010) Wood-Based Panels an Introduction for Specialists. Brunel University Press.
  • [6] Hellström LM, Carlberg T, Engstrand P, Gradin PA, Gregersen ØW (2012) Evaluation of collimated chipping technology for reducing energy consumption in mechanical pulping. Journal of Science & Technology for Forest Products and Processes 2(3).
  • [7] Hillring B, Canals G, Olsson O (2007) Market for recovered wood in Europe - an overview. In: Gallis Ch (ed) Management of recovered wood. University Studio Press, Thessaloniki.
  • [8] Htun M, Salmén L (1996) The importance of understanding the physical and chemical properties of wood to achieve energy efficiency in mechanical pulping. Wochenbl. Papierfabrik 124: 232-235.
  • [9] Hua J, Chen G, Xu D, Shi SQ (2012) Impact of termomechanical refining conditions on fiber quality and energy consummation by mill trial. BioResources 7(2):1919-1930.
  • [10] Irawati D, The utilization of sawdust for ethanol production. http://repository.ipb.ac.id/handle/ doi: 123456789/9013. (accessed 17 May 2014).
  • [11] Kupolati WK, Grassi St, Frattari A (2012) Environmental Greening through Utilization of Sawdust for Production of Bricks. OIDA International Journal of Sustainable Development, Vol. 4, No. 12:63- 78.
  • [12] Li J, Pang S, Scharpf EW (2012) Modeling of thermal energy demand in MDF production. Forest Prod. J. 57(9):97-104.
  • [13] Mantau, U. (2012) Wood Flows in Europe. Commissioned by CEPI: Confederation of European Paper Industries, and CEI-Bois: European Confederation of Woodworking Industries.
  • [14] Mantau U. (2010) Wood resource balance results - is there enough wood for Europe? In: Mantau U et al (ed) Euwood - Real potential for changes in growth and use of EU forests. Final report, Hamburg:19–34.
  • [15] Martínez A, Huber CD, Pinkl S, Mahrdt E, Teischinger A, Müller U (2017) Dynamic Compression: A Novel Technique to Reduce Energy Consumption during Wood Fiber Production. BioResources 12(4):7376-7394.
  • [16] McCormick K, Kautto N (2013) The bioeconomy in Europe: an overview. Sustainability 5:2589–2608.
  • [17] Merl AD, Humar M, Okstad T, Picardo V, Ribeiro A, Steierer F (2007) Amounts of recovered wood in COST E31 countries and Europe. In: Gallis Ch (ed) Management of recovered wood. University Studio Press, Thessaloniki:79–116.
  • [18] Pushpa J, Pramod Y (2012) Briqueting of saw dust. Applied Mechanics and Materials Vols. 110-116:1758-1761.
  • [19] Shi JL,. Zhang SY, Riedl B (2006) Multivariate modeling of MDF panel properties in relation to wood fiber characteristics, Holzforschung. 60(3):285-293.
  • [20] Vefago LHM, Avellaneda J (2013) Recycling concepts and the index of recyclability for building materials. Resour Conserv Recycl 72:127–135.
  • [21] Vis M, Mantau U, Allen B (Eds.) (2016) Study on the optimised cascading use of wood. No 394/PP/ENT/RCH/14/7689. Final report. Brussels:337.
  • [22] Wang Z, Ye W, Chu I, Ong ShP (2016) Elucidating Structure−Composition−Property Relationships of the β-SiAlON:Eu2+ Phosphor. Chemistry of Materials.
  • [23] EN 310: 1993 “Wood-based panels - Determination of modulus of elasticity in bending and of bending strength”.
  • [24] ЕN 316:2009 “Wood fibreboards - Definition, classification and symbols”.
  • [25] EN 317:1993 “Particleboards and fibreboards - Determination of swelling in thickness after immersion in water”.
  • [26] EN 319:1993 “Particleboards and fibreboards - Determination of tensile strength perpendicular to the plane of the board”.
  • [27] EN 322:1993 “Wood-based panels - Determination of moisture content”.
  • [28] ЕN 323:1993 “Wood-based panels - Determination of density”.
  • [29] EN 622-5:2009 “Fibreboards - Specifications - Part 5: Requirements for dry process boards (MDF)”.
  • [30] Global production and trade of forest products in 2016 http://www.fao.org/forestry/statistics (accessed 05 January 2018).
European Mechanical Science-Cover
  • Yayın Aralığı: 4
  • Başlangıç: 2017
  • Yayıncı: Ahmet Çalık
Arşiv
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