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Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment
-
Manoj Kumar Dubey
and
John Walker
Published/Copyright:
July 8, 2011
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)
Received: 2010-9-2
Accepted: 2011-6-6
Published Online: 2011-07-8
Published in Print: 2012-01-01
©2012 by Walter de Gruyter Berlin Boston
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Keywords for this article
chemical change;
CIEL*a*b* system;
color variation;
dimensional stability;
heat treatment;
linseed oil;
weight percentage change (WPC)
Articles in the same Issue
- Original Papers
- Novel paper sizing agents based on renewables. Part 5: characterization of maleated oleates by ozonolysis
- Polythiophene-cellulose composites: synthesis, optical properties and homogeneous oxidative co-polymerization
- The influence of extended mercerization on some properties of carboxymethyl cellulose (CMC)
- Minimizing the effect of undesirable reactions in ECF bleaching
- A rheological description of the water vapour sorption kinetics behaviour of wood invoking a model using a canonical assembly of Kelvin-Voigt elements and a possible link with sorption hysteresis
- Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment
- Improvement of dimensional stability of wood via combination treatment: swelling with maleic anhydride and grafting with glycidyl methacrylate and methyl methacrylate
- Synthesis and properties of resol-type phenol-formaldehyde resins prepared from H2SO4- and HCl-catalyzed phenol-liquefied Cryptomeria japonica wood
- Tack and shear strength of hybrid adhesive systems made of phenol-formaldehyde, dextrin and fish glue, and acrylic pressure-sensitive adhesive
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- Short Notes
- A study by X-ray photoelectron spectroscopy (XPS) of the chemistry of the surface of Scots pine (Pinus sylvestris L.) modified by friction
- Comparative termite resistance of 12 Malaysian timber species in laboratory tests
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- 10.1515/HF.2011.185
