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Effect of open asse...
Effect of open assembly time and equilibrium moisture content on the penetration of polyurethane adhesive into thermally modified wood
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- Bastani, Alireza (author)
- University of Göttingen, Germany
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- Adamopoulos, Stergios (author)
- Linnéuniversitetet,Institutionen för skog och träteknik (SOT),GoFP
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- Militz, Holger (author)
- University of Göttingen, Germany
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(creator_code:org_t)
- 2015-12-17
- 2017
- English.
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In: The journal of adhesion. - : Taylor & Francis. - 0021-8464 .- 1563-518X .- 1545-5823. ; 93:7, s. 575-583
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The effect of wood moisture content and open assembly time on penetration of polyurethane (PU) adhesive into thermally treated Scots pine (195 and 210°C) was investigated according to effective (EP) and maximum penetration (MP) measurements using fluorescence microscopy. For samples treated at 195°C, a higher EP was noted at 8.6% equilibrium moisture content (EMC) after both assembly times (15 and 30 min) while for samples treated at 210°C, increasing wood moisture content resulted in a significant decrease in EP at 12.5% EMC after 15 min assembly time. Extending open assembly time was found to increase the EP of PU adhesive only in the case of samples treated at 195°C and with 8.6% EMC. For samples treated at both treatment temperatures and after shorter open assembly time, the highest MP observed at moderate EMC levels of 8.6 and 8.2% and the lowest at the higher EMC levels of 13.2 and 12.5%.
Subject headings
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)
Keyword
- adhesive bondlines
- adhesive penetration
- bonding variables
- fluorescence microscopy
- polyurethanes
- thermal modification
- wood
- Forestry and Wood Technology
- Skog och träteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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