Recycled polystyrene with urea-formaldehyde addition as the binder for palmitic acid - impregnated particleboard: effect of density

This research investigates the environmental and thermal properties of wood composites produced using polystyrene resin as an adhesive and sawdust infused with palmitic acid as a phase change material (PCM) and Urea-formaldehyde (UF) as a binder. Using rubber wood dust bound with polystyrene resin aims to reduce the environmental impact compared to conventional synthetic polymers. Furthermore, the impregnation of sawdust with palmitic acid aims to improve energy efficiency by taking advantage of the acid's phase change ability. Determine the density of 3 samples which are 0.6 g/m3, 0.7 g/m3 and 0.8 g/m3 on particle board. The result of thickness swelling on sample 0.6 increased in the first 1 hour which is 12.06% from 10.32%. While 24 hours later for the 0.8 sample it only went up a little, from 17.51 to 17.55. This value is only slightly higher. This study uses bending, , water absorption, moisture content, FT-IR, TGA/DSC, and XRD on rubber sawdust using Urea-Formaldehyde as a binder along with Palmitic Acid at DT0.6, DT0.7 and DT0.8 with a weight of 5 % for UF and PA to compare all samples. Bending, wet absorption, FT-IR, TGA/DSC, and XRD were tested. Wood composite tests vary. Rubberwood dust all vary in value. For the highest moisture content (MC) which is 5.25 for the DT0.6 sample, followed by DT0.7 and DT0.8 which are 2.50 and 2.39. Particle board with more urea-formaldehyde and palmitic acid is a resin making it waterproof and better resistant in composite manufacturing. The rubber wood particle board composite will be analyzed using FT-IR, TGA, DSC, XRD analysis tests, and the wood composite test is a bending test, and a water absorption test. An important role for adhesives has been, and will continue to be played, in the effective use of wood resources, as well as in the expansion and development of the entire forest products industry as a whole.