Influence of Thermal Treatment and Impregnation on the Durability of Wood Colour - Université de Lorraine Access content directly
Journal Articles Journal of forest products and industries Year : 2014

Influence of Thermal Treatment and Impregnation on the Durability of Wood Colour

Abstract

The effect of thermal treatment and impregnation of woods on the stability of wood colour was investigated. Impregnation was performed by extractives obtained from the same thermally treated species or different ones. Treated and untreated samples were exposed to an accelerating ageing by solar radiation during 1000 h. Resuts showed that thermal treatments improved mainly the colour stability of softwood (pine and white fir) samples. Analysis of chromatic coordinates after 1000 hours of accelerated ageing showed that, thermally treated pine and white fir woods were the least affected samples with E* 1000 = 8.66 and 13.31 respectively. Impregnation increases the component b* causing an intense darkening of all analysed wood samples. Moreover, impregnation stabilised the colour of poplar and fir woods subjected 1000 hours of accelerated ageing whereas, beech woods showed high variations in colour. Thus, thermal treatment and impregnation could stabilise the surface aspect of woods that have an unstable natural colour. The efficiency of impregnation depends on the nature and physicochemical properties of the extractable substances and thus on wood species.

Domains

Materials
Fichier principal
Vignette du fichier
vol3-no1-6.pdf (459.19 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-01592997 , version 1 (29-09-2017)

Identifiers

  • HAL Id : hal-01592997 , version 1

Cite

Idriss El Bakali, Sakina Yagi, Mohammed Hamzah, Béatrice George, Andre Merlin, et al.. Influence of Thermal Treatment and Impregnation on the Durability of Wood Colour. Journal of forest products and industries, 2014, 3 (1), pp.42-49. ⟨hal-01592997⟩
99 View
57 Download

Share

Gmail Facebook X LinkedIn More