Systematic assessment of wheat extenders in formaldehyde-condensation plywood resins: part II – mechanical properties of plywood panels

Hogger, Elfriede M.; Herwijnen, Hendrikus W. G. van; Moser, Johann; Kantner, Wolfgang; Konnerth, Johannes

doi:10.1080/00218464.2020.1756788

Cited by 6 publications

(1 citation statement)

References 15 publications

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“…This can be explained by the weakening of the bonding quality, which was confirmed by the results for the mechanical properties. According to Hogger et al [ 41 ], the hindrance in polymer network formation and a deterioration in bonding quality can result in an increase in formaldehyde emission from UF resin-bonded plywood.…”

Section: Resultsmentioning

confidence: 99%

The Application of Various Bark Species as a Fillers for UF Resin in Plywood Manufacturing

et al. 2022

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The aim of the presented study was to apply various bark species (birch, beech, maple, pine and spruce) as fillers for urea-formaldehyde (UF) resin in three-layer plywood manufacturing. For this purpose, all types of bark were ground and added to the adhesive mixture. The resultant plywood was subjected to investigations of the following: tensile strength, modulus of elasticity (MOE), bending strength (MOR) and formaldehyde emission. The results indicate a reduction in the tensile strength. Moreover, the lack of significant improvement in strength parameters can be explained by too high a load of the filler (20 wt%). In the case of formaldehyde emissions, a reduction was observed for birch (B-1), beech (B-2), maple (B-3) and pine bark (B-4). In addition, an increase in the emission of formaldehyde was recorded only for spruce bark.

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Section: Resultsmentioning

confidence: 99%