Determination of the effectiveness of a combined thermal/chemical wood modification by the use of FT–IR spectroscopy and chemometric methods

Popescu, Carmen�Mihaela; Jones, Dennis; Kr�i�nik, Davor; Humar, Miha

Abstract

In this study, the combined effects of chemical (with tricine and bicine) and thermal treatments were investigated. The modifications which appeared in the wood structure were evaluated by infrared spectroscopy and chemometric methods (principal component analysis and hierarchical cluster analysis). After the treatment, about 6–7% of WPG was identified in treated samples, but further thermal treatment decreased the WPG to about 5%. The modifications appearing in the spectra were mostly related to increase of the intensities of the bands assigned to CO groups but also to N–H and C–N groups, with shifting of some bands to higher wavenumber values.

Citation

Popescu, C., Jones, D., Kržišnik, D., & Humar, M. (2020). Determination of the effectiveness of a combined thermal/chemical wood modification by the use of FT–IR spectroscopy and chemometric methods. Journal of Molecular Structure, 1200, Article 127133. https://doi.org/10.1016/j.molstruc.2019.127133

• Journal Article Type: Article
• Acceptance Date: Sep 25, 2019
• Online Publication Date: Sep 26, 2019
• Publication Date: 2020-01
• Deposit Date: Dec 18, 2019
• Journal: Journal of Molecular Structure
• Print ISSN: 0022-2860
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 1200
• Article Number: 127133
• DOI: https://doi.org/10.1016/j.molstruc.2019.127133
• Keywords: Softwood, Hardwood, Chemical modification, Thermal modification, Infrared spectroscopy, Chemometric methods
• Public URL: http://researchrepository.napier.ac.uk/Output/2406727