Effect of Pine (Pinus Sylvestris) Bark Dust on Particleboard Thickness Swelling and Internal Bond

Abstract

Increasing demand for wood resulted in competition between different branches of wood-based production. High intensity production, like the production of wood-based panels, is forced to look for other lignocellulosic resources. Bark is a possible source for wood-based panel industry, especially for particleboards. Bark chips were crushed into bark dust, which were used for the production of single-layer particleboards. The share of bark dust was 0 %, 0.5 %, 1 %, 5 % and 10 %. The boards were tested on thickness swelling (immersion in water, exposure to humid conditions) and internal bond. The highest internal bond was determined in the particleboard with 1 % bark share. Thickness swelling of boards with added bark was higher compared to boards without bark. The highest swelling was observed in boards with 10 % bark dust (immersion in water) or 5 % (humid conditions). Bark based boards absorbed less water.

Fire Parameters of Spruce (Picea abies Karst. (L.)) Dust Layer from Different Wood Technologies Slovak Case Study

“…Dust is formed as a by-product of various processes, which include the transport of dry and powdered material, crushing and screening of solids, filling and storage of granular materials in tanks and reservoirs [1][2][3]. Wood and wood-based wastes are also subject to the processes of reducing the size of the wood, e.g., chipping, etc.…”

Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives

“…The aim of this study was to find to what extent larch bark acts as a formaldehyde scavenger in the case of 10 mm decorative larch-bark panels bonded with UF, polyvinyl acetate (PVAc), a mixture of 70% UF + 30% PVAc, polyurethane (PUR), tannin-based adhesive, and self-agglomeration. This study follows our previous research [34][35][36], where decorative larch-bark panels with different resins were tested for mechanical and physical properties. On the basis of this research, larch-bark panels that were bonded with different resins met the EN standards for elasticity modulus, bending strength, thickness swelling, and water uptake after 24 h.…”