A new method of making particleboard with a formaldehyde-free soy-based adhesive

Prasittisopin, Lapyote; Li, Kaichang

doi:10.1016/j.compositesa.2010.06.006

Cited by 46 publications

(21 citation statements)

References 10 publications

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“…This suggests that reducing resin content may result in a significant decrease in total particleboard production cost. In addition, the formaldehyde released during production and use of wood-based composites is carcinogenic (Prasittisopin and Li 2010). This has given rise to widespread complaints about the bad odors and adverse health effects associated with formaldehyde emissions from wood-based composites (Wang et al 2007;Kazakevics and Spedding 2009).The emission of formaldehyde from particleboard decreases as the ratio of formaldehyde to urea decreases.…”

Section: Introductionmentioning

confidence: 95%

Reducing resin content and board density without adversely affecting the mechanical properties of particleboard through controlling particle size

Arabi

Faezipour

Gholizadeh

2011

Journal of Forestry Research

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Density and resin content are two factors that have a significant effect on the production cost of wood composite. However, particle size affects resin content and density, which suggests that the interaction of these three factors can be manipulated to reduce the board density and resin content of particleboard without adversely influencing its mechanical properties. Some mathematical functional forms based on resin content, board density and slenderness ratio were regressed and an appropriate form was chosen. According to analysis of the results using SHA-ZAM 9 software, the exponential function best fit the experimental data.Finally, "indifference curves" of mechanical properties were illustrated and analyzed. The results indicated that negative effects of density or resin content reduction on mechanical properties could be compensated for by controlling particles' slenderness ratio. Interestingly, increases in slenderness ratio compensated for the negative effects of decreases in resin content or board density on module of rupture (MOR) and module of elasticity (MOE). Moreover, this "compensation ratio" intensified as resin content or density decreased and/or as the MOR or MOE increased.On the other hand, reduction in slenderness ratio indicated a complementary effect on reducing internal bond (IB) strength, a result of decreases in resin content or density. Moreover, this "complementary ratio" was intensified as resin content or density decreased and/or as IB strength increased.

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Section: Introductionmentioning

confidence: 95%

Reducing resin content and board density without adversely affecting the mechanical properties of particleboard through controlling particle size

Arabi

Faezipour

Gholizadeh

2011

Journal of Forestry Research

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“…This includes using liquefied wood (LW), wood meal of black poplar liquefied with a mixture of glycerol and sulfuric acid by heating, for the modification of phenolformaldehyde (Antonovic et al 2010), organosolv lignin dispersion to partially replace the solids content in a liquid phenol-formaldehyde (Seyno et al 1996), hydrogen peroxide as a catalyst in the hardening process of urea-formaldehyde (Elbert 1995), low formaldehyde emission acrylic resin (Amazio et al 2011), and pulp and paper secondary sludge as a ureaformaldehyde co-adhesive (Xing et al 2013). A number of studies focused on the replacement of formaldehyde-based resins with other binders such as epoxidized vegetable oils (Sivasubramanian et al 2009;Tasooji et al 2010), soy-based adhesives (Prasittisopin and Li 2010), tannins and lignin from pulp mill residues (Bertaud et al 2012), and polymeric diphenylmethane diisocyanate (pMDI) (Tongboon et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Utilization of Cellulose Nanofibrils as a Binder for Particleboard Manufacture

et al. 2017

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Cellulose nanofibrils (CNF) were investigated as a binder in the formulation of particleboard (PB) panels. The panels were produced in four different groups of target densities with varying amounts of CNF binder.The produced panels were then tested to determine the modulus of rupture (MOR), modulus of elasticity (MOE), internal bond (IB), water absorption (WA), and thickness swelling (TS) properties. Density gradients through the thickness of the panels were evaluated using an Xray density profiler. The effect of drying on the strength development and adhesion between CNF and wood particles (WP) was investigated, and the effect of surface roughness on the wood-CNF bonding strength was evaluated through lap shear testing and scanning electron microscopy. It was found that at lower panel densities, the produced samples met the minimum standard values recommended for particleboard panels. Medium-density panels met the standard levels for IB, but they did not reach the recommended values for MOR and MOE. The possible bonding mechanism and panel formation process are discussed in light of microscopic observations and the results of lap shear tests were presented.

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“…Some innovative works studied new formaldehyde-free adhesives, but their difficult application (Prasittisopin and Li 2010) and low reactivity (Despres et al 2010;Tang et al 2011) lead to high pressing times and lower productivity, having no acceptance in the industry.…”

Section: Introductionmentioning

confidence: 99%

The influence of scavengers on VOC emissions in particleboards made from pine and poplar

Costa

Ohlmeyer

Ferra³

et al. 2013

Eur. J. Wood Prod.

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This paper studies the performance of scavengers on Volatile Organic Compound (VOC) emissions from wood-based composites. Particleboards made from maritime pine (Pinus Pinaster Ait.) and European poplar (Populus spp.) were produced with a UF resin doped with melamine and two scavengers, sodium metabisulfite and urea. VOC emission was measured according to EN ISO 16000. Particleboards made from pine present much higher total VOC (TVOC) emissions than boards made from poplar. Pine emits a higher amount of terpenes, but also aldehydes, acids and terpenoids, while poplar emits mainly acetic acid. Sodium metabisulfite showed an excellent ability to reduce aldehydes emission, which represents nearly 50 % of total emission of particleboards made from pine. When sodium metabisulfite was applied to particleboards made from poplar, reduction of TVOCs was not significant due to the low contribution of aldehydes to TVOCs. Urea presents a low reduction in TVOCs for both wood species.2

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A new method of making particleboard with a formaldehyde-free soy-based adhesive

Cited by 46 publications

References 10 publications

Reducing resin content and board density without adversely affecting the mechanical properties of particleboard through controlling particle size

Reducing resin content and board density without adversely affecting the mechanical properties of particleboard through controlling particle size

Utilization of Cellulose Nanofibrils as a Binder for Particleboard Manufacture

The influence of scavengers on VOC emissions in particleboards made from pine and poplar

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