Search Results - "Roffael, E"

On the measurement of formaldehyde release from low-emission wood-based panels using the perforator method by Roffael, E, Johnsson, B, Engström, B

“…In Europe, the perforator method (EN 120) is the mostly used laboratory method of the wood-based panel industry. Usually, the measured perforator value depends…”
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Influence of washing chemo-thermo-mechanical pulps (CTMP) on the emission of volatile organic acids of medium density fibreboards (MDF) prepared therefrom by Roffael, E.

“…Washing of CTMP-pulps ahead of board making decreases the amount of extractable acetate and formate ions from the boards. The decrease in the amount of…”
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INFLUENCE OF THE SURFACE ROUGHNESS OF PARTICLEBOARDS AND THEIR PERFORMANCE TOWARDS COATING by Rolleri, A, Roffael, E

“…The effect of surface properties on the quality of the adhesion was evaluated for coated particleboards. Uncoated UF- and TF-bonded particleboards made using…”
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Influence of molar ratio in aminoplastic resins on the dependence of the measured perforator values on the moisture content of wood-based panels by Johnsson, B, Engström, B, Roffael, E

“…The correction factor developed by Jann and Deppe (1990) to adjust the measured perforator values of particleboards and fibreboards measured at different…”
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Reactivity of water extractives in oak fibres towards formaldehyde by Roffael, E., Schütze, S.

“…Fibres obtained by the TMP- and CTMP-process from old oak (200–250 years) contain higher amounts of cold water extractives than those obtained from young oak…”
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Influence of thermo-mechanical and chemo-thermo-mechanical pulping on the properties of oak fibres by Schneider, T., Behn, C., Windeisen-Holzhauser, E., Roffael, E.

“…Thermo-mechanical pulps (TMP) and chemo-thermo-mechanical pulps (CTMP) were prepared from chips of oak wood with more than 70% heartwood. The fibres retrieved…”
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Influence of pulping technology on the release of formaldehyde and volatile organic acids from oak fibres and medium density fibreboards (MDF) prepared therefrom by Roffael, E., Gabriel, M., Schneider, T., Behn, C.

“…Chemo-thermomechanical pulps (CTMP) from oak wood release more formic and acetic acid than thermomechanical pulps (TMP) made from the same wood. In contrast,…”
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Complex chemical interactions on thermo hydrolytic degradation of urea formaldehyde resins (UF-resins) in recycling UF-bonded boards by Roffael, E., Hüster, H.-G.

“…Thermohydrolytic treatment of chips from UF-bonded particleboards using the flask method technique at temperatures of about 103°C resulted in a notable…”
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Influence of the surface roughness of particleboards and their performance towards coating by A. Rolleri, E. Roffael

“…Las propiedades de la superficie y su efecto en la calidad de la adhesion fueron evaluadas en tableros pintados. Tableros de partículas sin recubrir encolados…”
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On the formaldehyde release of wood by SCHÄFER, M, ROFFAEL, E

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On the furfural emission from particleboards, bonded with diisocyanates and a mixture containing diisocyanates and furfural by ROFFAEL, E. B, ROFFAEL, E. E

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Influence of different climatic conditions on the roughness of uncoated medium density fiberboards (MDF) by Rolleri, A., Roffael, E.

“…The surface roughness is primarily a function of the raw material properties, but other factors like type and amount of resin, press cycle, sanding and…”
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On paraffin sizing of medium density fiberboards (MDF). Part 1: Influence of the chemical composition of paraffin and type of emulsifier on the hydrophobic properties of MDF by Roffael, E., Schneider, T., Dix, B., Buchholz, T.

“…The main objective of the conducted research work was to explore the influence of chain length and amount of n-paraffins as well as the chemical composition of…”
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Use of spruce tannin as a binder in particleboards and medium density fiberboards (MDF) by ROFFAEL, E, DIX, B, OKUM, J

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Über die Abgabe von Ameisen- und Essigsäure aus Deck- und Mittelschichten von aus CTMP hergestellten mitteldichten Faserplatten (MDF) by Roffael, E., Behn, C., Dix, B.

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Influence of resin content and pulping temperature on the formaldehyde release from medium density fibreboards (MDF) by Roffael, E.

“…Increasing the binder content from 12 % to 20 % in medium density fibreboards (MDF) using a slightly melamine modified (3 % melamine) UF-resin of a molar ratio…”
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Chemische Eigenschaften von TMP und CTMP, hergestellt aus Kiefernholz und UF-Harz-gebundenen mitteldichten Faserplatten (MDF) by Roffael, E., Dix, B., Behn, C., Bär, G.

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On the responsiveness of hardened UF-resins of different molar ratio towards ammonia fumigation by Roffael, E.

“…Fumigation of two cross-linked UF-resins of molar ratio U:F 1:2.1 and 1:1.4 with ammonia reduces their formaldehyde release. The reduction seems to be more…”
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Veränderungen der chemischen Eigenschaften von Fasern und MDF durch Waschen der aufgeschlossenen Fasern by HENNECKE, U, ROFFAEL, E

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Zur hydrophobierung von mitteldichten Faserplatten (MDF) mit Paraffinen Teil 1 : Einfluss der chemischen Zusammensetzung des Paraffins und des Emulgatortyps auf die Hydrophobierung von MDF by ROFFAEL, E, SCHNEIDER, T, DIX, B, BUCHHOLZ, T

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