Naslov
Properties of Croatian Heat Treated Hardwood Floorings

Autori
Turkulin, Hrvoje ; Živković, Vjekoslav ; Galeković, Jakov ; Prša, Ivan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Skup
6 Europäisher TMT-Workshop

Mjesto i datum
Dresden, Njemačka, 06.05.2010. - 07.05.2010

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
heat treated wood; parquet elements; hygroscopic range; dimensional stability; density; biological durability

Sažetak
Heat treated wood (HTW) can be successfully appllied for floorings due to its better moisture resistance, increased dimensional stability, and uniform colour change to darker, brownish colours. The aim of this work was to define the hygroscopic range, equilibrium moisture content (EMC) at ambient conditions, density and biological durability of heat treated parquet elements of hornbeam, ash and beech. Material was treated at two temperature levels, 190 °C and 210 °C, and the properties were compared with native wood. The reduction in dimensional changes was expressed by volumetric shrinking and Anti Shrink Efficiency (ASE). Additionally, parquet elements, produced from HTW, were oil-impregnated and waxed, and subsequently tested for water vapor and liquid water permeability. Shrinking coefficients of HTW were not reduced in comparison with native beech wood. However, the significant reduction in absolute water uptake resulted in ca 50 % lower EMC values and up to ca 60 % improved ASE values of HTW. Heat treatment only slightly reduced the density of all species tested, but significantly improved their biological durability. This biological resistance was drastically influenced by treatment temperatures above 190 °C. Surface treatment with flooring oil and wax further improved the hygroscopic properties of HTW parquet elements.

Izvorni jezik
Engleski

Znanstvena područja
Drvna tehnologija, Biotehnologija

POVEZANOST RADA