Zur Sorption und Quellung von Holz und Holzwerkstoffen—Erste Mitteilung: Einflüsse auf das Sorptionsverhalten der Holzwerkstoffe

Seifert, J.

doi:10.1007/bf02615045

Cited by 13 publications

(3 citation statements)

References 31 publications

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“…This effect is probably due to the addition of additives (ammonium polyphosphate, borate and boric acid) that changed the saturation of water vapour in the air, and not due to the addition of binding fibres (cf. Kollmann and Schneider 1959;Seifert 1972;Lesar et al 2009). …”

Section: Sorptionmentioning

confidence: 99%

“…In recent years, investigations have been carried out on diverse natural fibres, not only for use as insulating material but also for polymer composite material (Alix et al 2009;Bessadok et al 2009;Hill et al 2009). Diverse factors such as the manufacturing method (Seifert 1972), the treatment of the fibres ) and the additives (Kollmann and Schneider 1959;Scheiding 1998;Lesar et al 2009) influence the sorption of natural fibres and fibreboards. The Hailwood-Horrobin model is often used to characterise the sorption isotherms of wood and adequately describes the sorption of other natural fibres (Hill et al 2009), and is used for modelling moisture transport in wood (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Thermal and moisture flux in soft fibreboards

Sonderegger

Niemz

2010

Eur. J. Wood Prod.

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The thermal conductivity of several wet and dry processed industrial soft fibreboards was determined at temperatures between 10°C and 30°C. Additionally, the thermal conductivity was tested relative to the moisture content ranging from an oven-dry sample to a moisture content of 85% relative humidity. Furthermore, the water vapour diffusion was investigated to determine the resistance factor and the diffusion coefficient under 'dry cup' and 'wet cup' conditions and the sorptions were tested by means of the sorption isotherms.The thermal conductivity increases with increasing temperature at about 0.45% per Kelvin and with increasing moisture at about 0.17 × 10 −2 W/mK per percent volumetric moisture content. Furthermore, the thermal conductivity depends on the manufacture (dry or wet process) and is influenced by density. The water vapour resistance factor increases and the diffusion coefficient decreases with increasing density. Both factors decrease with increasing moisture content and they are dependant on board thickness, composition and manufacturing. The sorption isotherm is similar to solid wood below about 80% relative humidity but strongly increases for soft fibreboards with binding fibres and additives of ammonium phosphate or sodium borate and boric acid when above 80% relative humidity. Wärme-und Feuchteverhalten poröser HolzfaserplattenZusammenfassung An verschiedenen, nach dem Nassoder nach dem Trockenverfahren, industriell hergestellten

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Section: Sorptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal and moisture flux in soft fibreboards

Sonderegger

Niemz

2010

Eur. J. Wood Prod.

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“…[9] (Breite) [3], [4], [9]). Die Oberflächenbeschichtung wirkte sich nicht auf den Feuchtegehalt aus (vgl.…”

Section: Introductionunclassified

Untersuchungen zum Sorptionsverhalten von Holzwerkstoffen

Niemz

Sonderegger

2009

Bauphysik

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Examination of the sorption characteristics of wood-based materials. Wood-based materials are increasingly employed in the building industry. Nowadays, prefabricated construction systems based on a combination of wood and wood-based materials are available, but also systems using predominantly wood-based materials. Thereby, distinct differences exist between the sorption characteristics of solid wood and wood-based materials and also within wood-based materials due to the bonding (type and portion) and manufacturing (steaming, drying, pressing) and the accompanying compression and heat treatment.

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Einsatzmöglichkeiten von Holzwerkstoffen

Dunky

Niemz

2002

Holzwerkstoffe Und Leime

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Zur Sorption und Quellung von Holz und Holzwerkstoffen—Erste Mitteilung: Einflüsse auf das Sorptionsverhalten der Holzwerkstoffe

Cited by 13 publications

References 31 publications

Thermal and moisture flux in soft fibreboards

Thermal and moisture flux in soft fibreboards

Untersuchungen zum Sorptionsverhalten von Holzwerkstoffen

Einsatzmöglichkeiten von Holzwerkstoffen

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