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Measurement of the uptake of linseed oil in pine by the use of an X-ray microdensitometry technique
Luleå tekniska universitet.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-9649-8621
Luleå tekniska universitet.
2001 (English)In: Journal of Wood Science, ISSN 1435-0211, E-ISSN 1611-4663, Vol. 47, no 4, p. 275-281Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2001. Vol. 47, no 4, p. 275-281
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-11075DOI: 10.1007/BF00766713ISI: 000170748200005Scopus ID: 2-s2.0-0142134446Local ID: 9fc43880-fe2a-11db-b19d-000ea68e967bOAI: oai:DiVA.org:ltu-11075DiVA, id: diva2:984024
Note

Validerad; 2001; 20070509 (cira)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-18Bibliographically approved

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Varna, Janis

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