Influence of Surface finishing material types to Formaldehyde and Volatile Organic Compounds Emission from Plywood

formaldehyde and volatile organic compounds (VOCs) are emitted from wood-based panels that havebeen made using wood particles, wood fiber, wood chips, formaldehyde-based resins and so on. In thisstudy, we examined formaldehyde and total VOCs (TVOC) emission behaviors for plywood overlaid withwater-soluble phenolic resin impregnated linerboard (PL), and two kinds of surface materials (decorativeveneer and pre-impregnated finishing foil) that were adhered onto the PL that named DPL and PPL. EVA(ethyl vinyl acetate) was used to overlay the decorative veneer and pre-impregnated fmishing foil on theplywood with water-soluble phenolic resin impregnated Imerboard by a hot press instrument. The debond-ing test and accelerated aging test were conducted to assess their mechanical properties. Formaldehyde andTVOC emission concentrations were measured using the FLEC method and a VOC Analyzer, respectively.The debonding test results of PL, DPL and PPL were 1.2, 1.5, and 0.5 N/mmU respectively. The surfaceappearance of the samples were not changed after the accelerated aging test. The PL and DPL exhibitedreduced formaldehyde and TVOC emission levels, respectively. In the case of PPL, the VOC value wasrelatively higher than those of PL and DPL.