Application of liquefied wood as a new particle board adhesive system

Kunaver, Matjaž; Medved, Sergej; Čuk, Nataša; Jasiukaitytė, Edita; Poljanšek, Ida; Strnad, Tatjana

doi:10.1016/j.biortech.2009.09.066

Cited by 95 publications

(44 citation statements)

References 26 publications

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“…With a ratio higher than 8:2, the content of liquefied wood no longer allowed a correct gelification of the resin. A similar increase was obtained by Kunaver et al (2010). …”

Section: Gel Timesupporting

confidence: 75%

“…So for non-structural applications Universidad del Bío -Bío in dry conditions, up to 25% of the synthetic phenol-formaldehyde resins could be replaced by liquefied wood with a satisfactory bond. Kunaver et al (2010) studied the possibility to partially replace resins UF, MF and MUF for liquefied wood for the production of panels and concluded that it would be possible to replace up to 50% of the minimum characteristics required maintaining resins for this type of panels. The main goal of this research was to use liquefied pine sawdust prepared by the polyhydric alcohol process as a partial substitute of UF and MUF resins in particleboard production.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins

Esteves¹,

Martins²,

Martins³

et al. 2015

Maderas, Cienc. tecnol.

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Maritime pine (Pinus pinaster) sawdust was used to produce liquefied wood by the polyhydric method with acid catalysis. The process was optimized to produce the highest amount of liquefied wood. Wood liquefied at 160ºC for 90 min was used in the adhesion tests. The bond strength of veneer glued with ureaformaldehyde and melamine-urea-formaldehyde resins and several mixtures of liquefied wood with ureaformaldehyde and melamine-urea-formaldehyde wasevaluated by automated bonding evaluation system.With the increase in liquefied wood content the bond strength decreased. Nevertheless for 20% liquefied wood the reduction of internal bond strength is relatively small and still within the minimum standards required. When 70% of liquefied wood is employed there is a significant decrease in bond strength.In conclusion it is possible to use a small amount of maritime pine sawdust liquefied wood as a partial substitute of urea-formaldehyde and melamine-urea-formaldehyde resins in the particleboard production, thus decreasing the formaldehyde content.

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“…With a ratio higher than 8:2, the content of liquefied wood no longer allowed a correct gelification of the resin. A similar increase was obtained by Kunaver et al (2010). …”

Section: Gel Timesupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins

Esteves¹,

Martins²,

Martins³

et al. 2015

Maderas, Cienc. tecnol.

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show abstract

“…[3,6,13], therefore only brief overview is given here. Dried particles from debarked Norwegian spruce (P. abies), harvested near Postojna, Slovenia (45 41 0 N, 14 12 0 E), representing a 244 g kg À1 of initial reactant mixture, 367 g kg À1 of glycerol and 367 g kg À1 of di-ethylene glycol and 22 g kg À1 of para-toluenesulfonic acid were used as an input material.…”

Section: Fuel Preparation and Conditioningmentioning

confidence: 99%

“…In literature, the product is usually named "liquefied wood" (LW) [6,7]. This process was chosen based on the analysis, which considered feedstock availability, reliability as well as costs of the production equipment, which is very important for endusers like industry and local communities.…”

Section: Introductionmentioning

confidence: 99%

Effects of primary air temperature on emissions of a gas turbine fired by liquefied spruce wood

Seljak

Oprešnik

Kunaver

2014

Biomass and Bioenergy

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“…Many groups have focused their attention on the liquefaction of lignocellulosic biomass, since liquefied wood is recognized as being a convenient component of polyurethanes (Kurimoto et al 2000;Wei et al 2004) and polyurethane adhesives (Tohamura et al 2005). Kunaver et al (2010) described application of liquefied wood as modifiers of urea-, melamine-urea-, or melamine-formaldehyde resins. Juhaida et al (2010) showed that liquefied kenaf core could be a source of polyols for polyurethane adhesives.…”

Section: Introductionmentioning

confidence: 99%

Hyperbranched Polyglycerols With Bisphenol a Core as Glycerol-Derived Components of Polyurethane Wood Adhesives

Mamiński¹,

Szymański²,

Parzuchowski³

et al. 2012

BioResources

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a Two hyperbranched polyglycerols (HBPGs) and one oligoglycerol containing bisphenol A in the core of the molecule were synthesized from glycerol carbonate and applied as polyols in 2-component polyurethane adhesive systems. It was shown that mechanical performance of the joints made in solid wood depended on the hydroxyl functionality of the polyglycerol as well as on the type of the isocyanate used as a crosslinker. The shear strengths of the best-performing joints exceeded that of the substrate. Eventually, it was proved that hyperbranched polyglycerols might be convenient glycerol-derived raw materials for polyurethane adhesives.

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Application of liquefied wood as a new particle board adhesive system

Cited by 95 publications

References 26 publications

Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins

Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins

Effects of primary air temperature on emissions of a gas turbine fired by liquefied spruce wood

Hyperbranched Polyglycerols With Bisphenol a Core as Glycerol-Derived Components of Polyurethane Wood Adhesives

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