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Items for "wood modification"

Dimensional changes in Corsican pine (Pinus nigra Arnold) modified with acetic anhydride measured using a helium pycnometer

Helium pycnometry was used to determine the changes in volume of wood samples of Corsican pine following modification with acetic anhydride...

Keywords: acetylation, dimensional change, helium pycnometry, Pinus nigra, wood modification

08/2004 | Holzforschung, Walter de Gruyter

Towards novel wood-based materials: Chemical bonds between lignin-like model molecules and poly(furfuryl alcohol) studied by NMR

Wood modification with furfuryl alcohol is a non-toxic alternative to conventional preservation treatments...

Keywords: 2D correlation NMR, furfurylation, HMBC, HMQC, lignin, Polymerization, preservation, renewable material, wood modification

11/2008 | Holzforschung, Walter de Gruyter

Laccase-catalyzed functionalization with 4-hydroxy-3-methoxybenzylurea significantly improves internal bond of particle boards

Enzymatic functionalization is an attractive tool to provide a reactive interface for further processing of lignocellulosic materials, such as wood particles and fibers...

Keywords: enzymatic functionalization, laccase, particle board, radioisotope labeling, wood composite, wood modification, wood particles

03/2008 | Holzforschung, Walter de Gruyter

Degradation of thermo-hygro-mechanically (THM)-densified wood by soft-rot fungi

Thermo-hygro-mechanical (THM)-densified wood is more resistant to colonisation and degradation by brown-rot fungi than untreated wood...

Keywords: beech, Norway spruce, soft-rot fungi, thermally treated wood, thermo-hygro-mechanically (THM)-densified wood, wood modification

05/2008 | Holzforschung, Walter de Gruyter

Modification of Fagus sylvatica (L.) with 1,3-dimethylol-4,5-dihydroxyethylene urea (DMDHEU): Part 1. Estimation of heat adsorption by the isosteric method (Hailwood-Horrobin model) and by solution calorimetry

The differential heat of adsorption (?H_s) of Fagus sylvatica wood modified with 0.8 M, 1.3 M, and 2.3 M solution of 1,3-dimethylol-4,5-dihydroxyethylene urea (DMDHEU) was determined at different equilibrium moisture contents (EMCs) by both the isosteric method, using the Hailwood-Horrobin model at 20, 30, and 40°C and by solution calorimetry...

Keywords: DMDHEU, empiric isotherms, Fagus sylvatica, Hailwood-Horrobin model, heat of adsorption, heat of wetting, solution calorimetry, wood modification

09/2008 | Holzforschung, Walter de Gruyter