Effect of Glass Wool and Stone Wool Additives on Some Mechanical Properties of Wood Composites

Abstract

Mechanical properties of wood composites made from multiple wood species (50% Crimean pine, 30% Eastern Black Sea oak, 15% quaking aspen, and 5% wood machining residues) were evaluated using various amount of glass wool (GW) and stone wool (SW) additives. A total of 70 experimental panels were produced with a target density of 640 kg/m 3 . The bending strength, modulus of elasticity, tensile strength parallel to the surface of boards, tensile strength perpendicular to the surface of boards (internal bond), and cutting (shear) strength parallel to the surface of boards were determined. After statistical analysis, the results indicated that the SW and GW additives decreased the bending strength and modulus of elasticity by 49% in almost all boards. The addition of SW resulted in a 6% reduction in the tensile strength parallel to the surface. Relative to SW, GW resulted in an additional 8% reduction in shear strength, a 3% reduction in the screw tensile strength perpendicular to the surface, and a 6% reduction in the tensile strength parallel to the surface. Thus, the SW and GW additives decreased all the selected mechanical properties of wood composites.

Hybrid composite board produced from wood and mineral stone wool fibers

“…Özdemir (2019) reported that the use of dolomitic sepiolite and perlite minerals in different proportions in the production of MDF negatively affected the physical and mechanical properties of the board. The use of glass fiber and stone wool in particleboard production, depending on the type of adhesive and additive ratio, reduced the mechanical properties of the boards by 75% from 39% (Ülker and Burdurlu 2016).…”

“…They reported that because the mechanical properties of these materials were at a good level, they could be used in wood-plastic composites of the type widely used in flooring applications. As a result of examining the mechanical properties of particleboards produced using glass wool and stone wool, Ülker and Burdurlu (2016) reported that the glass wool and stone wool reduced the bending strength and modulus of elasticity of the board 49%, shear strength by 8%, screw tensile strength by 3%, and tensile strength by 6%. Mamiński et al (2011) investigated the thickness swelling and mechanical and thermal properties of particleboards produced by adding mineral wool at the rates of 10, 20, and 30% using UF resin as a binder.…”

Optimizacija parametara proizvodnje ugušćene lamelirane furnirske građe proizvedene upotrebom urea-formaldehidne smole

“…The mechanical properties of wood, such as strength, hardness, and abrasion, can be improved by densification due to the compression perpendicular to grain under high temperature and pressure (Haller and Wehsener, 2004;Kollmann et al, 1975;Seborg et al, 1956;Ülker and Burdurlu, 2016). Thus, it is possible to use the wood of fast-growing species with low density and low mechanical properties as structural material instead of high-value wood (Kutnar and Sernek, 2007).…”

“…Thus, it is possible to use the wood of fast-growing species with low density and low mechanical properties as structural material instead of high-value wood (Kutnar and Sernek, 2007). Wood surface roughness is also reduced by densification, which provides lower press time, press pressure, press temperature, and less glue, especially in the production of laminated materials such as plywood and laminated veneer lumber (LVL) ( In the literature, there are many studies on the production of laminated materials such as plywood and LVL from pre-densified veneer (Bekhta and Ülker and Burdurlu, 2016). However, the densification of veneer as a separate step before lamination increases production time and cost.…”

Evaluation of corner joint strength of composite panels bonded with modified starch

“…Wood and wood-based materials are important components of furniture design and furniture construction design. The advance knowledge of the behavior of such materials regarding physical and mechanical forces applied to furniture provides technical, aesthetic, and economic benefits to the designer, manufacturer, and eventually users (Eckelman 1979, Kasal et al 2016, Imirzi et al 2016, Cinar et al 2019, Ulker and Burdurlu 2016.…”