PRE-DESIGN OF SENGON (FALCATARIA MOLUCCANA) PLYWOOD PRODUCTION USING UREA FORMALDEHYDE (UF) ADHESIVE WITH THE ADDITION OF SURIAN (TOONA SINENSIS) BARK FILLER : CHARACTERISTICS OF SENGON (FALCATARIA MOLUCCANA) PLYWOOD USING PHENOL FORMALDEHYDE ADHESIVES WITH THE ADDITION OF SURIAN (TOONA SINENSIS) BARK FILLER

• Main Author: Kunto Risrian, Giovanni
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/50746
• Institution: Institut Teknologi Bandung

This research was conducted to determine the effect of adding filler bark surian with 100 and 120 mesh to phenol formaldehyde (PF) adhesive on the characteristics of sengon plywood. The design in this research was adding filler to 100% phenol formaldehyde adhesive and 9% hardener. The variations of filler used in control were 9% industrial flour, compared to 100 mesh surian bark filler (A) 8%; 10% (B); 12% (C) and 120 mesh surian bark filler with 8% (D); 10% (E); 12% (F). The test parameters observed included adhesive characteristics consisting of viscosity, solids content and pH, plywood physical properties including moisture content and density, mechanical properties of plywood including tensile strength and bending strength, delamination and formaldehyde emission. The results showed that the addition of 100 mesh bark filler 10% and 120 mesh surian bark filler 12% showed a significant effect on the density and moisture content of sengon plywood. The addition of 100 mesh surian bark filler at 12% showed the lowest formaldehyde emission value. The decrease in formaldehyde emission value between the control and 100 mesh surian bark filler at 12% was 55% and caused an increase in the formaldehyde emission class from F*** in control to F****. This shows that the use of surian bark filler as a substitute for industrial flour in the plywood industry is very promising, because in addition to reducing costs through the utilization of bark waste, it can also reduce the value of formaldehyde emissions.