Modified high-density polyethylene film as the adhesive for veneer overlaying of wood-based panel

Abstract

Maleic anhydride grafted high-density polyethylene (MAH-HDPE) film was used instead of urea-formaldehyde resin adhesive to face wood-based panels (WBP) such as finger-jointed wood panel, medium-density fiberboard (MDF), high-density fiberboard (HDF), and three-ply plywood with decorative wood veneer. The effects of hot pressing conditions on the physical-mechanical performance (surface bonding strength, water immersion performance, and hot-cold cycling performance) of overlain veneered panels were evaluated. Rheology analysis, differential scanning calorimetry (DSC), and attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) were used to study the characteristics of MAH-HDPE film. Scanning electron microscopy (SEM) was used to observe the microstructure of the bonding interface. The veneered board using MAH-HDPE film as adhesive showed excellent properties, especially on water resistant and weather resistant performance. The veneered boards with finger-joint wood panel substrate could meet the Chinese national standard of type I grade veneered board of GB/T 17657 (2006), and the optimum hot pressing parameter was under a pressure of 1.3 MPa at 160 °C for 4 min. The MAH-HDPE film also can be applied to various other wood-based substrate materials for preparing veneered board. No glue penetration was observed on the surfaces.

The study on surface morphology and decorative properties of Magnesium-glass-board (MGB)

“…The research was studied by two ways. Firstly, the results of surface roughness, porosity and water contact angle of MGB were compared with that of medium density fiberboard (MDF) and medium density particleboard (MDP) to analysis its surface performance [17][18][19][20]. Second, the hot-pressing test was performed to further investigate the decorative properties of MGB.…”