Influence of processing parameters on some properties of oil palm trunk binderless particleboard

The objective of the study was to evaluate some properties of experimental binderless particleboards produced from various processing parameters. Three different temperatures (160, 180, 200 °C), two different hot pressing times (15, 20 min) and two different pressures (5, 10 MPa) were applied in manufacturing the binderless particleboard. Three replications of each of the 12 different types of boards with a target density of 0.60 g cm−3 were produced. The thickness swelling, dimensional changes associated with changes in relative humidity, bending strength, internal bonding strength, and soil burial decay test were evaluated. Increase of temperature, duration of hot pressing and pressure increased the properties of specimens. Thickness swelling nearly met the requirement of European Standard for use in humid condition. Some of the specimens showed promising mechanical properties and met the requirement of European Standard.ZusammenfassungZiel dieser Studie war es, ausgewählte Eigenschaften von unterschiedlich hergestellten bindemittelfreien Laborspanplatten zu bestimmen. Die Spanplatten wurden mit drei verschiedenen Temperaturen (160, 180, 200 °C), zwei Heißpresszeiten (15, 20 min) und zwei verschiedenen Pressdrücken (5, 10 MPa) jeweils mit einer Solldichte von 0,60 g/cm³ hergestellt. Von jedem der zwölf verschiedenen Typen wurden drei Platten hergestellt. Es wurden die Dickenquellung, die Maßänderungen in Verbindung mit Änderungen der relativen Luftfeuchte, die Biegefestigkeit sowie die Querzugfestigkeit untersucht und Freilandversuche im Erdkontakt durchgeführt. Eine höhere Temperatur, längere Heißpressdauer und größerer Druck ergaben bessere Eigenschaften der Prüfkörper. Die Dickenquellung erfüllte fast die Anforderung der europäischen Norm für eine Außenanwendung unter feuchten Bedingungen. Einige der Prüfkörper wiesen vielversprechende mechanische Eigenschaften auf und erfüllten die Anforderungen der europäischen Norm.

[1]  Y. B. Hoong,et al.  Resistance of phenolic-treated oil palm stem plywood against subterranean termites and white rot decay , 2011 .

[2]  L. E. Wise,et al.  A CHLORITE HOLOCELLULOSE, ITS FRACTIONATION AND BEARING ON SUMMATIVE WOOD ANALYSIS AND STUDIES ON THE HEMICELLULOSES , 1946 .

[3]  B. Chabbert,et al.  In situ analysis of lignins in transgenic tobacco reveals a differential impact of individual transformations on the spatial patterns of lignin deposition at the cellular and subcellular levels. , 2001, The Plant journal : for cell and molecular biology.

[4]  Masatoshi Sato,et al.  Effect of particle geometry on the properties of binderless particleboard manufactured from oil palm trunk , 2010 .

[5]  E. Wong,et al.  Formation of the density profile and its effects on the properties of particleboard , 1999, Wood Science and Technology.

[6]  H. Edlund,et al.  Manufacture of non-resin wheat straw fibreboards , 2009 .

[7]  P. Abreu,et al.  Characterisation of a sugar fraction from Sarcocephalus latifolius stem bark extract , 2001 .

[8]  Takeshi Furuno,et al.  Evaluation of three test methods in determination of formaldehyde emission from particleboard bonded with different mole ratio in the urea–formaldehyde resin , 2007 .

[9]  M.J.A. van den Oever,et al.  Production process for high density high performance binderless boards from whole coconut husk , 2004 .

[10]  M. Jollands,et al.  Properties of hardwood saw mill residue-based particleboards as affected by processing parameters , 2009 .

[11]  S. Schmidt,et al.  Can the thermodynamic melting temperature of sucrose, glucose, and fructose be measured using rapid-scanning differential scanning calorimetry (DSC)? , 2011, Journal of agricultural and food chemistry.

[12]  Abdul Manan Dos Mohd.,et al.  Physico‐chemical Properties of Oil Palm Trunk Starch , 1999 .

[13]  A. Singh,et al.  The pattern of distribution of pectin, peroxidase and lignin in the middle lamella of secondary xylem fibres in alfalfa (Medicago sativa). , 2005, Annals of botany.

[14]  Masatoshi Sato,et al.  Influence of press temperature on the properties of binderless particleboard made from oil palm trunk , 2011 .

[15]  S. Nielsen Determination of Moisture Content , 2010 .

[16]  B. Tey,et al.  Oil Palm (Elaeis guineensis) Trunk as a Resource of Starch and Other Sugars , 2011 .

[17]  Run-Cang Sun,et al.  Fractional separation and physico-chemical analysis of lignins from the black liquor of oil palm trunk fibre pulping , 2001 .

[18]  Masatoshi Sato,et al.  Characterization of raw materials and manufactured binderless particleboard from oil palm biomass , 2011 .

[19]  Qian Wang,et al.  Formation of the density profile and its effects on the properties of fiberboard , 2000, Journal of Wood Science.

[20]  Francesc Ferrando,et al.  Suitability of steam exploded residual softwood for the production of binderless panels. Effect of the pre-treatment severity and lignin addition , 2001 .