Hafrén, Jonas
- Institutionen för skogens produkter, Sveriges lantbruksuniversitet
Sammanfattning
In this study, the effects of UV-light irradiation and water spray on colour and surface chemistry of scots pine sapwood samples were investigated. The specimens were treated with chromated copper arsenate (CCA), a metal-free propiconazol-based formulation, chitosan, furfuryl alcohol and linseed and tall oils. The weathering experiment was performed by cycles of 2 h UV-light irradiation followed by water spray for 18 min. The changes at the surface of the weathered samples were characterised by Fourier transform infrared spectroscopy (FT-IR); colour characterizations were performed by measuring CIELab parameters. The results show that all treatment methods except chitosan treatment provided lower colour changes than the control groups after 800 It exposure in weathering test cycle, but differences between chitosan and control were also small. The lowest colour changes were found on linseed oil (full cell process) and CCA treated wood. FT-IR results show that oil treatment (linseed and tall oil) decreased the intensities of a lignin specific peak (1500-1515 cm(-1)). Absorption band changes at 1630-1660 cm(-1) were reduced by all treatments. (C) 2006 Elsevier B.V. All rights reserved
Publicerad i
Applied Surface Science
2007, volym: 253, nummer: 12, sidor: 5355-5362
Utgivare: ELSEVIER SCIENCE BV
SLU författare
Terziev, Nasko
- Institutionen för skogens produkter, Sveriges lantbruksuniversitet
- Institutionen för skogens produkter, Sveriges lantbruksuniversitet
UKÄ forskningsämne
Skogsvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1016/j.apsusc.2006.12.005
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/15161