Adhesion properties and formaldehyde emissions of MnO2/UF nanocomposite adhesives
Source abstract
Abstract
Urea-formaldehyde (UF) resins are the most used resins in manufacturing particleboards. However, UF resins are susceptible to hydrolytic degradation, which causes formaldehyde emission and limits their use as wood panel adhesives for interior applications. In this study, we investigated the effects of the addition of nano MnO 2 into urea-formaldehyde resin (UF) on the physicomechanical properties and formaldehyde emission of the bonded plywood. Two UF resins (a conventional as control and an innovative one with MnO 2 nanoparticles (UFL)) were analyzed for their specifications with FTIR measurements both in their cured state. Differential scanning calorimetry (DSC) analysis was used to investigate the curing process. The formaldehyde emission decreased by 72.8 %, and the 3 h hot water soaking wet tensile shear strength improved by 74.5 % with the addition of 1.2 % (w/w)MnO 2 nanoparticles compared to the UF resin control.
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Research context
OpenAlex topics: Lignin and Wood Chemistry · Polymer composites and self-healing · Advanced Cellulose Research Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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