EXPERIMENTAL STUDY OF THE EFFECT OF VARIATIONS OF TAPIOCA, PVAC AND CITRIC ACID ADHESIVES ON PHYSICAL CHANGES OF PARTICLEBOARD

Abstract

The production of wood processing produces a large amount of wood powder waste, which can be reused to make particleboards . The study aims to see how the variation in the type of adhesive affects the physical and mechanical characteristics of teak wood powder-based particleboards. The particle board made in this study has a composition consisting of 60% teak wood powder and 40% adhesive material. The adhesive used pure tapioca flour, a mix of tapioca flour and citric acid (20% each), and a mix of tapioca flour and PVAc (20% each). The boards were formed using a hot press at 160°C and 3 MPa pressure. After fabrication particleboards  and making test samples with SNI standards, particleboards  are tested to determine their physical properties through density and moisture content (MC) tests, as well as mechanical properties that include modulus of elasticity (MOE) and modulus of fracture (MOR). The results obtained by all samples successfully met the JIS A 5908-2003 standard in terms of density and moisture content. However, for the MOE and MOR parameters, the test scores are not in accordance with these standards. Of the three variations, it can be seen that the mixture of tapioca flour and citric acid produces the highest density, while the mixture of tapioca flour and PVAc shows the best performance in the MOR aspect. Based on these findings, it can be concluded that although all three types of adhesives are physically adequate, their mechanical strength still needs to be improved through further development.