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The influence of drying on the sorption properties of polyethylene wax treated wood

100%

Lesar B., Sever Skapin A., Humar M.

Drewno. Prace Naukowe. Doniesienia. Komunikaty

2011

tom 54

nr 185

The importance of the use of waxes in the wood industry has been increasing, particularly in Europe, since consumers, due to their increased environmental awareness, avoid using biocidally treated wood and wood from tropical forests. In this research two water-repellent emulsions in various concentrations were used: polyethylene and oxidised polyethylene wax emulsion. The performance of wax treated Norway spruce (Picea abies) and beech (Fagus sylvatica) wood was tested in two sorption experiments: conditioning in high relative air humidity (vapour diffusion) and non-continuous dipping (liquid flow). The sorption properties of oven and vacuum dried impregnated specimens were determined. During conditioning, wax treated Norway spruce specimens, vacuum and oven dried, had the same moisture content as control specimens; while treated vacuum dried beech had up to 25% lower moisture content than the parallel control specimens. An even higher difference was evident in volume changes of vacuum and oven dried beech specimens during the sorption test.

Ograniczanie wyników

1 Drewno. Prace Naukowe. Doniesienia. Komunikaty

1 Humar M.

1 Lesar B.

1 Sever Skapin A.

1 2011

Wyniki wyszukiwania

The influence of drying on the sorption properties of polyethylene wax treated wood