Resistance of Scots pine (Pinus sylvestris L.) modified with short- and long-chain siloxanes to subterranean termites (Reticulitermes flavipes)

Laboratory choice and no-choice tests following the guidelines of EN 117 (2013) were performed to assess the resistance of wood modified with short- and long-chain amino-functional siloxane emulsions to subterranean termites (Reticulitermes flavipes). Scots pine sapwood was vacuum-pressure treated t...

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Bibliographic Details
Published in:Wood science and technology 2015-01, Vol.49 (1), p.177-187
Main Authors: Gascón-Garrido, P, Thévenon, M. F, Militz, H, Mai, C
Format: Article
Language:English
Subjects:
Accelerated aging tests
Accelerated tests
Aging
Biomedical and Life Sciences
Ceramics
Composites
Emulsions
Evergreen trees
Glass
guidelines
Life Sciences
Machines
Manufacturing
Natural Materials
Original
Pine trees
Pinus sylvestris
Processes
Reticulitermes flavipes
Rhinotermitidae
sapwood
Silicones
Siloxanes
subterranean termites
Termites
Vacuum
Wood
Wood Science & Technology
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Summary:Laboratory choice and no-choice tests following the guidelines of EN 117 (2013) were performed to assess the resistance of wood modified with short- and long-chain amino-functional siloxane emulsions to subterranean termites (Reticulitermes flavipes). Scots pine sapwood was vacuum-pressure treated to reach 2, 5 and 8 % weight percent gain. Half of the specimens (including controls) were subjected to an accelerated aging test according to the standard EN 84 (1997) prior to termite testing. In addition to visual rating, mass losses were also determined. In case of the no-choice test, silicone-treated samples were not resistant according to EN 117 (2013), even though a clear reduction in mass loss had occurred. After exposure to a choice test, the modified wood samples showed 5–10 times less mass loss than control samples, even in the case of the leached specimens. This study reveals a good performance of wood modified with short-chained amino-functional siloxanes in resisting to R. flavipes when there is a choice of feeding.
ISSN:0043-7719
1432-5225
DOI:10.1007/s00226-014-0688-2