Ageing of modified wood: Part 2: Determination of surface composition of acetylated, furfurylated, and thermally modified wood by XPS and ToF-SIMS
2010 (English)In: Holzforschung, ISSN 0018-3830, Vol. 64, no 3, 305-313 p.Article in journal (Refereed) Published
The main objective of this work was to study the chemical composition of surfaces and ageing effects on acetylated pine (Pinus sylvestris), heat treated spruce (Picea abies), and furfurylated radiata pine (Pinus radiata) in comparison to unmodified wood. X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) were the instruments of choice. Observation with a low-vacuum scanning electron microscope (LV-SEM) complemented the study. The spectroscopic information was also linked to a parallel wettability study on matched wood samples by the Wilhelmy method. The results show that XPS and ToF-SIMS are two powerful tools that in combination give complementary information, both quantitative and qualitative, and are well suited for observation of the ageing process of different wood surfaces. The hydrophobization process as a result of migration of extractives during ageing was well quantified by the XPS measurements and the results correlated well with wetting results. Several specific hydrophobic substances could be identified by ToF-SIMS measurements.
Place, publisher, year, edition, pages
2010. Vol. 64, no 3, 305-313 p.
acetylation, electron spectroscopy for chemical analysis (ESCA), furfurylation, heat treatment, modified wood, surface chemical composition, time-of-flight secondary ion mass spectrometry (ToF-SIMS), X-ray photoelectron spectroscopy (XPS)
IdentifiersURN: urn:nbn:se:kth:diva-8386DOI: 10.1515/HF.2010.062ISI: 000276810800005ScopusID: 2-s2.0-77951280203OAI: oai:DiVA.org:kth-8386DiVA: diva2:13692
QC 20101108 Uppdaterad från submitted till published (20101108). Tidigare titel: Surface characteristics and ageing effects of modified wood : Part 2 : spectroscopic studies of surface chemical composition2008-05-082008-05-082010-11-08Bibliographically approved