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Measurement of the uptake of linseed oil in pine by the use of an X-ray microdensitometry technique
Journal of Wood Science volume 47, pages 275–281 (2001)
Abstract
Pine sapwood (Pinus sylvestris) was impregnated with linseed oil to three levels of uptake. The distribution of the penetrant was found by taking microdensity measurements of an impregnated sample and then using an ethanol extraction procedure to remove the linseed oil. A second set of X-ray measurements at identical locations in the same sample allowed the linseed oil to be indirectly mapped. An uneven distribution of linseed oil in the specimens with the lowest uptake (25% increase in weight) was seen as sharp gradients in the densitometry curves. With increased filling by the linseed oil, these gradients were gradually smoothed. Microstructural changes in specimens with high uptake were revealed using scanning electron microscopy. Through a combination of X-ray microdensitometry investigation and changes observed in the wood's mechanical properties and morphology, it was concluded that liquid flow during impregnation results in significant damage to the cell structure.
References
Schneider MH, Sharp AR (1982) A model for the uptake of linseed oil by wood. J Paint Technol 54:91–96
Schneider MH (1979) Scanning electron microscope study of a coating component deposited from solution into wood. J Oil Col Chem 62:441–444
Nussbaum RM, Sutcliffe EJ, Hellgren AC (1998) Microautoradiographic studies of the penetration of alkyd, alkyd emulsion and linseed oil coating into wood. J Coating Technol 70:49–57
Peemoeller H, Schneider MH, Sharp AR (1984) Pulsed nuclear magnetic resonance measurement of the relative and absolute linseed oil content in wood. J Coating Technol 56:67–72
Polge H (1978) Fifteen years of wood radiation densitometry. Wood Sci Technol 12:187–196
Bucur V, Garros S, Navarrete A, deTroja MT, Guyonnet R (1997) Kinetics of wood degradation by fungi with X-ray microdensitometry technique. Wood Sci Technol 31:383–389
Heger L, Parker ML, Kennedy RW (1974) X-ray densitometry: a technique and an example of application. Wood Sci 7:140–148
Hoag M, Mckimmy MD (1988) Direct scanning X-ray densitometry of thin wood sections. For Prod J 38:23–26
Cown DJ, Clement BC (1983) A wood densitometer using direct scanning with X-rays. Wood Sci Technol 17:91–99
Peng F, Granfeldt T (1996) Changes in the microstructure of spruce wood chips after screw press treatment. J Pulp Paper Sci 22:140–145
Megnis M, Olsson T, Varna J, Lindberg H (1999) Mechanical performance of linseed oil impregnated pine as correlated to the take up level. (Submitted)
Larsson B, Pernestål K, Jonsson B (1994) A wood sample preparation method for direct scanning X-ray microdensitometry. Swedish University of Agricultural Sciences report 29. ISRN SLU-SKUPIN-R-29-SE
Erickson HD, Balatinecz JJ (1964) Liquid flow paths into wood using polymerization techniques: Douglas-fir and styréne. For Prod J 14:293–299
Richter K, Sell J (1992) Studies on impregnation pathways in white fir (Abies alba). Holz Roh Werkstoff 50:329–336
Phillips WWJ (1933) Movement of the pit membrane in coniferous woods, with special reference to preservative treatment. Forestry 7:109–120
Liese W, Bauch J (1967) On the closure of bordered pits in conifers. Wood Sci Technol 1:1–13
Dinwoodie JM (1981) Timber: its nature and behaviour. Van Nostrand Reinhold, London
Schneider MH (1980) Hygroscopicity of wood impregnated with linseed oil. Wood Sci Technol 14:10–14
Wallström L (1998) Cell wall bulking and distribution of different chemicals in pine, pinus sylvestris. Doctoral thesis, Luleå University of Technology
Flynn KA, Goodell BS (1996) Physical effects of the pulsation preservative treatment process on northeasthern red spruce (Picea rubens. Sarg). For Prod J 46:56–62
Olsson T, Megnis M, Varna J, Lindberg H (1999) A study of the transverse liquid flow paths in pine and spruce using scanning electron microscopy (SEM). (Submitted)
Thuvander F, Berglund LA, Kifetew G (1998) Modeling of cell wall drying stresses in wood. In doctoral thesis, Luleá6 University of Technology, pp 29–53
Kifetew G, Thuvander F, Berglund LA, Lindberg KAH (1998) The effects of drying on wood fracture surfaces from specimens loaded in wet conditions. Wood Sci Technol 32:83–94
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Olsson, T., Megnis, M., Varna, J. et al. Measurement of the uptake of linseed oil in pine by the use of an X-ray microdensitometry technique. J Wood Sci 47, 275–281 (2001). https://doi.org/10.1007/BF00766713
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DOI: https://doi.org/10.1007/BF00766713