An amino-alkyl siloxane oligomer as hydrophobation agent for particleboards used under high humidity conditions

Onat, Saadettin Murat; Kloeser, Lars; Mai, Carsten

doi:10.1007/s00107-014-0829-1

Cited by 8 publications

(4 citation statements)

References 15 publications

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“…This could explain the fact of higher WU in those panels but lower thickness swelling (24 h). These results are in agreement with a previous study that used amino-alkyl siloxane to improve the hydrophobicity of particleboards [ 2 ]. However, the high WU is not a limiting factor, as no threshold value is defined in the EN 317:1993 [ 33 ] standard, whereas the thickness swelling values are the critical ones.…”

Section: Resultssupporting

confidence: 93%

“…The reduction in the mechanical strength of wood-based panels under humid conditions is an expected result [ 2 , 41 , 42 ], which can be attributed to the relative brittleness and inability of cured resin to be plasticized through the induced stress by water molecules at a high relative humidity [ 43 , 44 ]. This may lead to failure in interfiber connection, and thus reduce the mechanical strength of the HDF panels.…”

Section: Resultsmentioning

confidence: 99%

“…Like solid wood and other wood-based composites, fiberboard is a hygroscopic material; therefore, its moisture content depends on the surrounding relative humidity and temperature [ 1 ]. In addition, urea-formaldehyde is a hydrophilic resin, and even the cured resin is susceptible to hydrolysis under appropriate conditions of elevated temperature and humidity [ 2 ]. During processing, finishing and in service, fiberboard panels are exposed to extensive changes in ambient relative humidity, which directly affect the properties of final products, i.e., thickness swelling and linear expansion, surface smoothness, thermal conductivity, stiffness and strength and formaldehyde emissions.…”

Section: Introductionmentioning

confidence: 99%

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Hydrophobic Formulations Based on Tall Oil Distillation Products for High-Density Fiberboards

Hosseinpourpia

Αδαμόπουλος

Walther³

et al. 2020

Materials

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This study investigates the effect of renewable formulations based on tall oil bio-refinery products on the water vapor sorption and interfiber strength of cellulosic fibers as well as on the properties of high-density fiberboard (HDF) panels. The results obtained for HDF prepared using renewable formulations were compared to the results for HDF obtained using conventional synthetic paraffin wax (hydrowax), which is the hydrophobic agent currently utilized by the industry. Four tall oil distillation products (TODPs) with different levels of fatty and rosin acids were used for preparing the hydrophobic formulations with furfuryl alcohol as an organic solvent. According to determinations with an automated vapor sorption apparatus, the formulations had a similar effect with hydrowax on the sorption behavior of natural fibers. Unlike to hydrowax treatment, the ultimate tensile strength of cellulosic paper-sheets treated with the formulations remained unchanged or significantly increased. At the standard addition load of 1% (wt/wt dry fibers) of the formulations, HDF panels showed comparable and only in one case, e.g., TODP3-based formulation, slightly higher thickness swelling (24 h) than those with hydrowax. The best performing formulation (TODP2-based) in terms of tensile strength of paper sheets did not significantly change the mechanical properties of HDF panels in both standard climate and high humid conditions. Promising results at the standard and humid climate conditions were obtained for HDF panels manufactured with higher TODP2-based formulation amounts (3–5%) and reduced melamine-urea-formaldehyde resin content (10–12% instead of 14%, wt dry resin/wt dry fibers).

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrophobic Formulations Based on Tall Oil Distillation Products for High-Density Fiberboards

Hosseinpourpia

Αδαμόπουλος

Walther³

et al. 2020

Materials

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“…In particular, annual plants take up a lot of space, and the panels produced from such materials may have low dimensional stability and inadequate mechanical properties (Iswanto et al 2014). However, some mechanical properties of particleboards can be improved by using chemical additives, such as organosilanes (Onat et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Feasibility of using waste sweet bay wood (Laurus nobilis L.) in particleboard production

Yazıcı

2020

BioRes

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Turkey holds a 95% market share of global sweet bay (Laurus nobilis L.) leaf trade, and it has 25 leaf processing and manufacturing facilities with different capacities. In this study, the usability of waste sweet bay wood (BW) that was removed from bay leaf processing plants was studied. For this purpose, three-layer particleboards were produced by mixing industrial chips (IC) and waste sweet bay wood chips (BWC) at a mixture rate of 0%, 25%, 50%, 75%, and 100%. For panel production, urea formaldehyde adhesive (UF) was used in 10% of the surface layers and in 8% of the middle layer based on dry chip weight. Some mechanical properties, such as bending strength (BS), modulus of elasticity in bending (MOE), internal bond strength (IB) of the test panels, thickness swelling (TS), and water absorption (WA) amounts, were determined. The results showed that all panel groups except group C (25% BWC + 75% IC) met the general purpose panel class (P1) requirements for use in dry conditions according to TS EN 312 (2012). In addition, group A panels (100% BWC) met the requirements of P2 class for the MOE and BS, and group E panels (75% BWC + 25% IC) met the P3 standards. The results showed that BWC could be used to produce particleboard for general purposes, including furniture.

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Influence of Silicon‐Containing Compounds on Adhesives for and Adhesion to Wood and Lignocellulosic Materials: A Critical Review

Petrič

2019

Progress in Adhesion and Adhesives

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An amino-alkyl siloxane oligomer as hydrophobation agent for particleboards used under high humidity conditions

Cited by 8 publications

References 15 publications

Hydrophobic Formulations Based on Tall Oil Distillation Products for High-Density Fiberboards

Hydrophobic Formulations Based on Tall Oil Distillation Products for High-Density Fiberboards

Feasibility of using waste sweet bay wood (Laurus nobilis L.) in particleboard production

Influence of Silicon‐Containing Compounds on Adhesives for and Adhesion to Wood and Lignocellulosic Materials: A Critical Review

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