Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment

Manoj Kumar Dubey; Shusheng Pang; John Walker

doi:10.1515/HF.2011.117

Published by De Gruyter July 8, 2011

Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment

Manoj Kumar Dubey , Shusheng Pang and John Walker

From the journal

https://doi.org/10.1515/HF.2011.117

Showing a limited preview of this publication:

Abstract

Pinus radiata wood specimens were heat-treated at 160–210°C in linseed oil and the effects of treatment on chemical composition, color, dimensional stability, and fungal resistance were examined. The degradation of hemicelluloses was the most remarkable feature, which is the principal reason for alterations in wood properties. Removal or migration of extractives, oil uptake and the accumulation of oil on the wood surface were observed. The color of heat-treated wood became more uniform and darker, and its dimensional stability (i.e., anti-swelling efficiency) and fungal resistance were improved by up to 60% and 36%, respectively. The viscosity of the oil after treatment was elevated with the treatment temperature and was higher in comparison to heated oil without wood present.

Keywords: chemical change; CIEL*a*b* system; color variation; dimensional stability; heat treatment; linseed oil; weight percentage change (WPC)

Corresponding author. Department of Chemical and Process Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand Phone: +64-3-3642538 Fax: +64-3-3642063

Received: 2010-9-2

Accepted: 2011-6-6

Published Online: 2011-07-8

Published in Print: 2012-01-01

Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment

Abstract

Journal and Issue

Articles in the same Issue