WATER HYACINTH AND RICE HUSK AS SUBSTITUTES FOR MANUFACTURING PARTICLE BOARD

Abstract

The extensive use of wood in construction applications such as walls, ceilings, and other structures has resulted in excessive consumption, contributing to environmental degradation. Particle boards have emerged as viable alternatives to reduce the overuse of wood in various applications. This study aimed to explore the physical and mechanical properties of water hyacinth and rice husk, both classified as lignocellulosic waste materials, as alternative raw materials for manufacturing particleboard. An experimental research design was employed to assess the efficacy of particleboard manufactured from water hyacinth and rice husk. The evaluation focused on density, water absorption rate, thickness swelling rate, and flexural strength. Both coated and uncoated particleboards were tested using established standards, including the Japan Industrial Standards (JIS A5908) and the Indian Standard (IS 3087). The coated particleboard achieved a density of 1.61 g/cm³, a water absorption rate of 3.84%, a thickness swelling rate of 0%, a modulus of rupture of 5 MPa, and a modulus of elasticity of 659 N/mm². In comparison, the uncoated particleboard recorded a density of 1.55 g/cm³, a water absorption rate of 16.00%, a thickness swelling rate of 0.80%, a modulus of rupture of 4 MPa, and a modulus of elasticity of 652 N/mm². In conclusion, the particleboard manufactured from water hyacinth and rice husk exhibited physical properties that are nearly comparable to those of commercially available particleboard. However, the product failed to meet standard mechanical property requirements. To address these limitations, it is recommended that future studies employ a hydraulic press, increase adhesive content, and apply higher heat during the pressing process to improve mechanical performance.