Abstract
The aim of this study was to investigate the role of the particle size, board density, resin content and hot press temperature on the properties of particleboard composite. Single-layered Kelempayan (Neolamarckia cadamba) particleboards bonded with phenol formaldehyde (PF) resins were manufactured. The boards were fabricated with three different particle sizes (0.5, 1.0 and 2.0 mm), two different board densities (600 and 700 kgm-3), two different resin contents (9 and 11%) and two different hot press temperatures (155 and 165˚C). The boards produced were evaluated for their modulus of elasticity (MOE), modulus of rupture (MOR), internal bond (IB) and thickness swelling (TS) in accordance with the Malaysia Standards. The study revealed that boards from smaller particles, higher resin contents and higher hot press temperatures gave higher MOE, MOR, IB and improved the TS. However, boards with higher densities gave higher MOE, MOR, IB and TS. Overall, the boards with the particle size of 0.5 mm, board density of 700 kgm-3, resin content of 11% and 165˚C of hot press temperature exhibited the greatest performance and were able to fulfill the Malaysia Standard specifications for furniture grade used in dry (PF1) and humid (PF2) and also for load-bearing applications in dry (PS1).
Highlights
With the constant increase in population and rapid development of the global economy, the overall demand for wood composites is rising, while the available wood supply will decrease due to deforestation of natural forests [1]
The modulus of elasticity (MOE), modulus of rupture (MOR) and internal bond (IB) increased with increasing the board density and resin content
Particle size of 0.5 mm at the density of 700 kgm-3 presence of 11% resin content and pressed under 165 ̊C of hot press temperature (Treatment 8) contributed to the highest board performance in mechanical properties
Summary
With the constant increase in population and rapid development of the global economy, the overall demand for wood composites is rising, while the available wood supply will decrease due to deforestation of natural forests [1]. The use of fast growing species in wood composite industry had increased due to the market needs and most welcomed of the introduction of new raw materials to the market [5]. The selfpruning and straight bole characteristics of the tree have attracted attention to the tree as a potentially useful species for tree plantation. This species is known as Kadam in India, Jabon in Indonesia, Kaatoan Bangkal in the Philippines, Taku in Thailand, Entipong in Sarawak, Limpoh in Sabah and Kelempayan in Peninsular Malaysia [8]. This study conducted to investigate the influence of particle size, board density, resin content and hot press temperature to the mechanical and physical properties of Kelempayan particleboard
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