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Durable fibre for durable MDF – testing Tricoya®
2015 - IRG/WP 15-40704
The chemical modification of wood has been a commercial reality for a decade on release of technologies for the modification of solid wood including Accoya®. A challenge and an opportunity for the modification technologies which typically impart dimensional stability, water stability and enhanced biological durability was the adaptation of the technology to wood based panels. This paper presents ...
E Suttie, J Alexander, M Maes


Diffusion into and bulking of the wood cell wall with polystyrene glycols (PEG)
1991 - IRG/WP 3660
The diffusion and equilibrium distribution of polyethylene glycol (PEG) in the cell walls of red pine (Pinus resinosa) and trembling aspen (Populus tremuloides) were followed by analysing the free lumen solution concentration of vacuum treated wafers at various times after treatment. PEG was more-or-less excluded from the cell walls of wood, depending on the wood species and PEG molecular weight. ...
P A Cooper, Y T Ung, D Alexander, C Holzscherer


The resistance of high performance acetylated wood to attack by wood-destroying fungi and termites
2013 - IRG/WP 13-40621
The resistance of high acetyl solid timber (Accoya) and medium density fibreboard (Tricoya) to attack by wood-destroying fungi and termites was investigated under both laboratory and field conditions. Laboratory studies were conducted in Japan, New Zealand and USA. Field studies were conducted in Australia, Japan, New Zealand, Thailand and UK. The results of the laboratory and field studies agains...
J Alexander, J Hague, M Roberts, Y Imamura, F Bongers, E Suttie


The resistance of Accoya® and Tricoya® to attack by wood-destroying fungi and termites
2014 - IRG/WP 14-40658
The resistance of high acetyl WPG solid timber (Accoya®) and medium density fibreboard (Tricoya®) to attack by wood-destroying fungi and termites was investigated under both laboratory and field conditions. Laboratory decay studies were conducted in Australia and New Zealand. Field studies were conducted in Australia, Japan, New Zealand, Thailand and USA. The results of the laboratory and field ...
J Alexander, J Hague, F Bongers, Y Imamura, M Roberts


Compatibility of Acetylated Wood and Wet Concrete
2014 - IRG/WP 14-40673
One of the newer commercial technologies to provide stability and durability to wood and wood composites is the process of acetylation (the reaction of acetic anhydride with wood). Wood is often used in contact with concrete, although only a very limited amount of species are suitable for this type of application because of durability issues. From this perspective durability class 1 timber such ...
R Rowell, C Lankveld, J Alexander


Termite and insect resistance of acetylated wood
2015 - IRG/WP 15-40703
The benefits from acetylation of wood to enhance resistance against fungal decay and dimensional stability have been known for many years. Since 2007 Accsys Technologies has been commercially producing Accoya® wood that is based on acetylation of radiata pine. A number of studies on the resistance of acetylated wood to attack by wood destroying termites have been conducted, but there is no common...
F Bongers, M Kutnik, I Paulmier, J Alexander, H Militz