Preparation and   Characterization of Composite Particleboard Made from Water Hyacinth (Eichhornia Crassipes)
Nwe Nwe Myint
Department of Engineering Chemistry, West Yangon Technological University Yangon, Myanmar [email protected]
This study is focused on the mechanical and physical properties of fabricated single - layer particleboard by using hot-press molding method from various particle sizes (4mm, 2mm, 1mm, 500µm, 250µm) of Water Hyacinth fiber (Eichhornia Crassipes). Their mechanical strength including modulus of rupture (MOR), impact strength, hardness, tensile strength and physical properties of density, moisture content, water absorption (WA) and swelling thickness (ST) were determined by ISO standard methods. The fiber particles are bonded with 20% urea-formaldehyde resin and then mixed with 6ml of ammonium sulphate hardener for the best performance in aspect of properties. These results  fulfilled to FAO (2013) and JAS (2003) standards. The surface  fracture of  particleboard  (CPB5)  having  particle size 250µm studied by Digital microscope showed that the surface of board  is uniform and fibers are not pulled  out  from  the surface . From the comparison of properties and surface fracture, the particleboard (CPB5) have the highest MOR (563.86 kgcm-2). It tends to enhance the properties of board. It was found that the particle size of fiber have a significant effect on the board properties.
Keywords - water hyacinth, particle size, particleboard, urea-formaldehyde, mechanical and physical properties