Sorption and Swelling within Wood Cell Walls

Christensen, G. N.

doi:10.1038/213782a0

Cited by 32 publications

(14 citation statements)

References 2 publications

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“…[40,16]. This effect is well-known in polymer science and is attributed to molecular relaxation, either at the local scale or more global scale, in relation with stress relaxation [11,14,9]. To account for this effect, Olek et al [31] proposed a modification of the convective boundary condition in which the exponential approach of the wood surface moisture content to the equilibrium with moist air was taken into consideration.…”

Section: Introductionmentioning

confidence: 96%

Non-Fickian moisture diffusion in thermally modified beech wood analyzed by the inverse method

Olek

Rémond

Weres

et al. 2016

International Journal of Thermal Sciences

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Section: Introductionmentioning

confidence: 96%

Non-Fickian moisture diffusion in thermally modified beech wood analyzed by the inverse method

Olek

Rémond

Weres

et al. 2016

International Journal of Thermal Sciences

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“…clays, 1 titanates, 2 polymers, 3 biological membranes, 4 and graphite oxides (GO). 5,6 GO materials are obtained by strong oxidation of graphite.…”

Section: Introductionmentioning

confidence: 99%

Delamination of graphite oxide in a liquid upon cooling

et al. 2015

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Graphite oxide (GO) in liquid acetonitrile undergoes a transition from an ordered phase around ambient temperatures to a gel-like disordered phase at temperatures below 260K, as demonstrated by in-situ x-ray diffraction. The stacking order of GO layers is restored below the freezing point of acetonitrile (199K). The reversible swelling transition between a stacked crystalline phase and an amorphous delaminated state observed upon cooling provides an unusual example of increased structural disorder at lower temperatures. The formation of the gel-like phase is attributed to the thermo-responsive conformational change of individual GO flakes induced by stronger solvation. Scanning force microscopy demonstrates that GO flakes deposited onto a solid substrate from acetonitrile dispersions at a temperature below 260K exhibit corrugations and wrinkling not observed for the flakes deposited at ambient temperature. The thermo-responsive transition between delaminated and stacked phases reported here can be used for sonication-free dispersion of graphene oxide, micro-container applications, or the preparation of new composite materials.

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“…The focus of this section is, however, put on the rate of sorption of cell walls themselves. In order to investigate this and separate sorption from diffusion of water vapour, very thin wood samples must be used which was done in a range of sorption experiments by Christensen (1959Christensen ( , 1965Christensen ( , 1967, Christensen and Kelsey (1959) and Kelly and Hart (1970) using a vacuum apparatus.…”

Section: Rate Of Sorptionmentioning

confidence: 99%

A critical discussion of the physics of wood–water interactions

et al. 2012

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This paper reviews recent findings on wood-water interaction and puts them into context of established knowledge in the field. Several new findings challenge prevalent theories and are critically discussed in an attempt to advance current knowledge and highlight gaps. The focus of this review is put on water in the broadest concept of wood products, that is, the living tree is not considered. Moreover, the review covers the basic wood-water relation, states and transitions. Secondary effects such as the ability of water to alter physical properties of wood are only discussed in cases where there is an influence on state and/or transition.

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Sorption and Swelling within Wood Cell Walls

Cited by 32 publications

References 2 publications

Non-Fickian moisture diffusion in thermally modified beech wood analyzed by the inverse method

Non-Fickian moisture diffusion in thermally modified beech wood analyzed by the inverse method

Delamination of graphite oxide in a liquid upon cooling

A critical discussion of the physics of wood–water interactions

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