Effect of sodium carboxymethyl cellulose (Na-CMC) added to urea-formaldehyde resin on particleboard properties

İstek, Abdullah; Biçer, Aziz; Özlüsoylu, İsmail

doi:10.3906/tar-1905-87

Cited by 10 publications

(4 citation statements)

References 10 publications

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“…The calculated density values of the produced bark particleboards showed a maximum deviation of 5% for both board densities (320 and 420 kg/m 3 ), and the density values were within the tolerance limits specified by TS EN 312. Istek and Siradag (2013) stated that the density of particleboards is influenced by various factors, including raw material and adhesive type, as well as production conditions. They also emphasized that a variation of up to 10% in board density does not significantly affect the board properties.…”

Section: Resultsmentioning

confidence: 99%

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The effect of varnish type, glue amount, and density on the surface properties of low density particleboards produced from waste wood bark

Özlüsoylu

2023

BioRes

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Particleboards, which are widely used in various fields, are commonly coated with solid and liquid surface coating materials to achieve better physical, mechanical, and aesthetic results. This study produced low-density particleboards from waste wood bark using different adhesive mixtures and densities. These particleboards were then coated with three types of varnish: water-based (Aq), polyurethane-based (Pu), and oil/wax-based (Ow). The color, gloss, and surface roughness values of the coated boards were determined to investigate the effect of varnish type, total adhesive usage, and density on these properties. In the board groups produced with the same glue ratio and density, the roughness values obtained with Ow varnish application were mostly higher compared to Aq and Pu. In the Ow varnish type, the roughness (Rmax) decreased linearly with increasing total adhesive amount in particleboards produced at low density (320 kg/m3). The highest color change (ΔE*) values for all variations were obtained in the Ow varnish type, while the highest gloss values were achieved at 85° and in the B2 (4%-420 kg/m3) board group. It was concluded that higher density should be preferred for smoother and glossier surfaces, which are important in terms of surface properties and aesthetics. Overall, these findings highlight the preference for higher density to achieve smoother and glossier surfaces in areas where surface properties and aesthetics are significant.

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Section: Resultsmentioning

confidence: 99%

“…Wood materials are commonly preferred in construction and engineering due to their aesthetic appearance and ease of workability (İstek and Özlüsoylu 2016;Ergun 2021). However, the increasing population and demands have led to an insufficient supply of solid wood products.…”

Section: Introductionmentioning

confidence: 99%

The effect of varnish type, glue amount, and density on the surface properties of low density particleboards produced from waste wood bark

Özlüsoylu

2023

BioRes

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“…A comparison with previous studies revealed that the IB values of the particleboards with AC were higher than those of some conventional particleboards made from wood or other waste materials. The IB values of particleboards made from wood particles and UF-sodium carboxymethyl cellulose ranged from 0.28 to 0.63 N/mm 2 , depending on the sodium carboxymethyl cellulose concentration [37]. The IB values of particleboards made from bamboo chips with UF ranged from 0.26 to 0.28 N/mm 2 [38].…”

Section: Mechanical Properties Of Particleboardsmentioning

confidence: 98%

Analysis and Impact of Activated Carbon Incorporation into Urea-Formaldehyde Adhesive on the Properties of Particleboard

Ergun,

Özlüsoylu,

İstek

et al. 2023

Coatings

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Nowadays, the particleboard industry cannot meet the market’s demand. Therefore, filler materials have started to be used both to conserve raw materials and to enable the use of wood-based boards in different areas. This study investigates the effects of incorporating different ratios of activated carbon (0%, 1.5%, 4.5%, 7.5%) on the properties of particleboards. The physical properties were examined, including density, moisture content, thickness swelling, and water absorption. The results reveal that the density increased with increasing activated carbon content while the moisture content decreased, indicating improved dimensional stability and water resistance. Additionally, the color properties were influenced by activated carbon, leading to a darker appearance with decreased lightness and yellow-blue components. The mechanical properties, such as internal bond strength, modulus of rupture, and modulus of elasticity, showed significant enhancements with the addition of activated carbon, indicating improved bonding and increased strength. Moreover, the thermal conductivity decreased with increasing activated carbon content and improved insulation performance. Scanning electron microscope analysis confirmed the uniform distribution of activated carbon within the particleboard matrix, without agglomeration, positively impacting the mechanical performance. According to the thermogravimetric analysis results, the addition of activated carbon led to a decrease of up to 6.15% in mass loss compared to the control group. The incorporation of activated carbon at a ratio of 4.5% in particleboards confers notable enhancement to their physical, mechanical, and thermal characteristics. These findings contribute to understanding the potential benefits and considerations of using activated carbon as an additive in particleboard production.

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“…The modification of UF resins with 5% octadecylamine (ODA)modified bentonite (ODA-BNT) nanoclay showed better adhesion strength and lower free formaldehyde compared with neat UF resins [18]. The effect of sodium carboxymethyl cellulose (Na-CMC) added to UF resin on particleboard production has been investigated and the physico-mechanical properties of particleboard showed the best internal bond (IB) strength in the panels with the 20% Na-CMC admixture [19]. Finely ground birch (Betula verrucosa Ehrh.)…”

Section: Introductionmentioning

confidence: 99%

Physico-Mechanical and Thermal Properties of Thermoplastic Poly(Vinyl Alcohol) Modified Thermosetting Urea Formaldehyde Resin

Sultana

Mannan²,

Abedin³

et al. 2021

Advances in Materials Science

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Urea formaldehyde (UF) resins are brittle and to improve their tensile properties poly(vinyl alcohol) (PVA) has been used to modify the UF resin. An easy improved procedure was developed to make PVA modified UF resin on the basis of conventional synthesis of UF resin. Prepolymer of UF was mixed with different weight percentages of PVA (1-5%) to synthesize modified UF resin which can be used to make adhesive for forest products. Both UF and modified UF resins were characterized by FTIR, physico-mechanical and thermal properties analyses. Modified UF resin containing 2 wt. % PVA exhibited better results than the UF.

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Effect of sodium carboxymethyl cellulose (Na-CMC) added to urea-formaldehyde resin on particleboard properties

Cited by 10 publications

References 10 publications

The effect of varnish type, glue amount, and density on the surface properties of low density particleboards produced from waste wood bark

The effect of varnish type, glue amount, and density on the surface properties of low density particleboards produced from waste wood bark

Analysis and Impact of Activated Carbon Incorporation into Urea-Formaldehyde Adhesive on the Properties of Particleboard

Physico-Mechanical and Thermal Properties of Thermoplastic Poly(Vinyl Alcohol) Modified Thermosetting Urea Formaldehyde Resin

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