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Hydrofluoroalkanes as carrier solvents for timber preservation

Kennedy, M.J., Walker, B. and Erskine, C. (2009) Hydrofluoroalkanes as carrier solvents for timber preservation. In: 40th Annual Meeting of the International Research Group on Wood Protection, 24-28 May 2009, Beijing, China.

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Publisher URL: http://www.irg-wp.com/


Hydrofluoroalkanes are a specific category of hydrofluorocarbon (HFC) commonly used in refrigeration applications. Some HFCs hold potential for use as carrier fluids for preservatives used to protect timber above ground. They do not share the most significant disadvantages of currently used carriers for these applications. At ‘conventional’ operating pressures, they are capable of rapid, full penetration of some timbers generally considered refractory, such as spruce and the heartwood of radiata pine. But they are comparatively expensive and, while they are not detrimental to the ozone layer, they would contribute significantly to the greenhouse effect if released. Impregnation process conditions can be optimised to maximise biocide solubility and impregnation speed and depth.

Item Type:Conference or Workshop Item (Paper)
Corporate Creators:DEEDI
Additional Information:© International Research Group on Wood Protection.
Keywords:Carrier fluid; solvent recovery; refractory timber; LOSP.
Subjects:Technology > Technology (General)
Live Archive:05 Apr 2011 07:47
Last Modified:03 Sep 2021 16:48

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