.5 Wood Surface Properties On The Performance Impact Of Engineered Wood Flooring Glued

Wood parquet flooring is a green product and environmental friendly. More choices of surface veneer wood are development trend of parquet flooring. This paper, we choose Populus spp., Quercus spp., Acer mono, Teak and Red sandalwood as the surface veneer wood of multi-ply solid wood parquet flooring. Then, we research and analyze surface performance of the chose wood veneers and how these factors influence on glue bond strength between surface veneer and cross-band veneer.By various modern analytic methods, surface chemistry composition, surface roughness, surface appearance and wettability of wood veneers are tested and analyzed. The results show: C element exist four combined forms in every wood surface, but O/C ratio and C1/C2 ratio are evidently different from wood to wood; Surface roughness of the five wood veneers is very different, the values show Populus spp.>Acer mono>Manilkara spp.>Quercus spp.>Tectona grandis; Under Scanning Electron Microscope, Populus spp. and Acer mono can be clearly observed wood anatomy construct, but, because of extractive migration and surface pollution, other wood veneers almost can't be observed any wood anatomy construct; Through test of contact angle and calculation of surface free energy, it is found that wettability of Populus spp. is best, then are Acer mono and Quercus spp., wettability of Manilkara spp. and Tectona grandis is bad.SAS analytic method is used to analyze relativity between tested factors of wood surface performance and glue bond strength of surface wood. Analytic results show: Wet glue bond strength is directly related to dry bond strength; Wet glue bond strength is directly related to the O/C ratio and inversely related to the C1/C2 ratio; Dry glue bond strength is directly related to the O/C ratio and inversely related to the C1/C2 ratio. Other factors also affect the glue bond strength on a certain extent, but their relativities are not evident.