Dimensional stability of MDF panels produced from heat-treated fibres

Garcia, R. Á.; Cloutier, Alain; Riedl, Bernard

doi:10.1515/hf.2006.045

Cited by 25 publications

(14 citation statements)

References 6 publications

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“…Another work (Mohebby et al 2008) found similar results: water absorption of MDF manufactured with wet thermal pretreated wood was not affected, thickness stability was improved, and mechanical properties were reduced. Garcia et al (2006) showed also reduction of thickness swelling and water absorption of MDF after water soaking. The authors showed that the springback of panels after repeated cycles of adsorption and desorption do not change after thermal pretreatment of wood.…”

Section: Effect Of Wood Thermal Pretreatment On Waferboardmentioning

confidence: 86%

A review of wood thermal pretreatments to improve wood composite properties

et al. 2013

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The objective of this paper is to review the published literature on improving properties of wood composites through thermal pretreatment of wood. Thermal pretreatment has been conducted in moist environments using hot water or steam at temperatures up to 180 and 230°C, respectively, or in dry environments using inert gases at temperatures up to 240°C. In these conditions, hemicelluloses are removed, crystallinity index of cellulose is increased, and cellulose degree of polymerization is reduced, while lignin is not considerably affected. Thermally modified wood has been used to manufacture wood-plastic composites, particleboard, oriented strand board, binderless panels, fiberboard, waferboard, and flakeboard. Thermal pretreatment considerably reduced water absorption and thickness swelling of wood composites, which has been attributed mainly to the removal of M. R. Pelaez-Samaniego

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Section: Effect Of Wood Thermal Pretreatment On Waferboardmentioning

confidence: 86%

A review of wood thermal pretreatments to improve wood composite properties

et al. 2013

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“…Changes caused by heat treatment in chemical composition and physical properties (with dimensional stability in focus) were intensely investigated (Repellin and Guyonnet 2005;Esteves et al 2008a;Tuong and Li 2011). Even the dimensional stability of MDF panels can be improved when the fibers are heat-treated (Garcia et al 2006). The surface composition was investigated by modern analytical instruments, such as XPS and ToF-SIMS by Bryne et al (2010).…”

Section: Introductionmentioning

confidence: 99%

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

Dubey¹,

Pang²,

Walker³

2012

Holzforschung

107

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Pinus radiata wood specimens were heat-treated at 160-2108C 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 heattreated 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.

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“…This may also be explained by removal of the hemicellulose component during the latter process with the concomitant increase in the relative lignin content Garcia et al, 2006).…”

Section: Analyses Of Residual Wood Components Following Growth Of P mentioning

confidence: 99%