Einfluß einer Wärme-Druck-Behandlung halbtrockenen Holzes auf seine Formbeständigkeit

Burmester, Arno

doi:10.1007/bf02607268

Cited by 91 publications

(27 citation statements)

References 3 publications

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“…The first commercial thermal modification unit in Europe was based on the research of Burmester (1973) and started in Germany around 1980. The process was never industrialised on a great scale (Giebler 1983).…”

Section: Commercial Thermal Modification Processesmentioning

confidence: 99%

Wood modification technologies - a review

Sandberg¹,

Kutnar²,

Mantanis³

2017

iForest

350

197

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The market for new durable products of modified wood has increased substantially during the last few years, especially in Europe. This increased interest depends partly on the restricted use of toxic preservatives due to increased environmental concern, as well as the need for reduced maintenance for wood products that are mainly for exterior use. Furthermore, as sustainability becomes a greater concern, the environmental impact of construction and interior materials should be included in planning by considering the entire life cycle and embodied energy of the materials used. As a result, wood modification has been implemented to improve the intrinsic properties of wood, widen the range of sawn timber applications, and acquire the form and functionality desired by engineers, without bringing environmental friendliness into question. The different wood modification processes are at various stages of development, and the challenges that must be overcome to expand to industrial applications differ amongst them. In this paper, three groups of wood modification processes are discussed and exemplified with modified wood products that have been newly introduced to the market: (i) chemical processing (acetylation, furfurylation, resin impregnation etc.); (ii) thermo-hydro processing (thermal treatment); and (iii) thermo-hydro-mechanical processing (surface densification). Building on these examples, the paper will discuss the environmental impact assessment of modification processes and further development needs.

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Section: Commercial Thermal Modification Processesmentioning

confidence: 99%

Wood modification technologies - a review

Sandberg¹,

Kutnar²,

Mantanis³

2017

iForest

350

197

View full text Add to dashboard Cite

show abstract

“…No signifi cant difference was observed between the density values of the TCWs modifi ed with 1 MPa and the untreated wood boards. When the press pressure was increased from 1 MPa to 2 MPa, the density values increased from 0.37 to 0.45 g/cm 3 . The TCW modifi ed with 2 MPa at 170 °C had the highest density values (Table 3).…”

Section: Vertical Density Profi Le (Vdp) and Mean Density Vertikalni mentioning

confidence: 99%

“…It is known that thermal modifi cation could improve dimensional stability, equilibrium moisture content, permeability, surface quality, and durability of wood materials (Burmester, 1973;Giebeler, 1983; Korkut and Kocaefe, 2009). There are various thermal treatment methods in Europe.…”

Section: Introduction 1 Uvodmentioning

confidence: 99%

Thermally Compressed Poplar Wood (TCW): Physical and Mechanical Properties

2013

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“…The thermal treatment of wood was a research topic long ago, and the processes were permanently optimized in different countries. The first trials by Tiemann (1920) have already showed that high temperature drying increases the dimensional stability, but targeted investigations only began later (Stamm and Hansen 1937;Burmester 1973Burmester , 1975Giebeler 1983). Since that time, four different processes have been widely used in Europe.…”

Section: Introductionmentioning

confidence: 99%

Changes in Swelling Properties and Moisture Uptake Rate of Oil-Heat-Treated Poplar (Populus × Euramericana Cv. Pannónia) Wood

Bak¹,

Németh²

2012

BioResources

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In this work, the effect of oil heat treatment (OHT) on the swelling properties and changes in the rate of moisture uptake of poplar wood (Populus × euramericana cv. Pannónia) were investigated. Eighteen different treatments (combinations of three vegetable oils, two temperatures, and three durations) were studied. The results showed that OHT decreases the equilibrium moisture content (EMC) and the swelling of poplar wood. The degree of swelling and the EMC are influenced by both the duration and temperature of treatment. With an increase in duration and temperature, the EMC decreased. Consequently, the anti-swelling efficiency (ASE) increased. OHT wood adsorbs less moisture than natural wood, but it reaches a maximum -EMC at the momentary climate -at the same time under all the investigated treatments. The moisture uptake is fastest in the beginning and thereafter it slows significantly. Decreasing the moisture uptake by OHT wood is due to the decreasing of its water storage capacity.

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Einfluß einer Wärme-Druck-Behandlung halbtrockenen Holzes auf seine Formbeständigkeit

Cited by 91 publications

References 3 publications

Wood modification technologies - a review

Wood modification technologies - a review

Thermally Compressed Poplar Wood (TCW): Physical and Mechanical Properties

Changes in Swelling Properties and Moisture Uptake Rate of Oil-Heat-Treated Poplar (Populus × Euramericana Cv. Pannónia) Wood

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