Drvna industrija, Vol. 70 No. 3, 2019.
Izvorni znanstveni članak
https://doi.org/10.5552/drvind.2019.1847
The Effect of Thermo-Mechanical Treatment of Moso Bamboo (Phyllostachys Pubescens) on Its Sorption and Physicomechanical Properties
Przemysław Mania
orcid.org/0000-0002-0784-6258
; Sveučilište prirodoslovnih znanosti u Poznanju, Fakultet drvne tehnologije, Zavod za znanost o drvu, Poznanj, Poljska
Jerzy Majka
orcid.org/0000-0002-6713-8077
; Sveučilište prirodoslovnih znanosti u Poznanju, Fakultet drvne tehnologije, Zavod za inženjersku mehaniku i toplinske tehnike, Poznanj, Poljska
Magdalena Zborowska
; Sveučilište prirodoslovnih znanosti u Poznanju, Fakultet drvne tehnologije, Institut za kemijsku tehnologiju drva, Poznanj, Poljska
Sažetak
The aim of this study was to examine some properties of heat-treated (200 °C) and densified (treated) bamboo. Density (ρ), equilibrium moisture content (EMC), sorption hysteresis (H), swelling (S), and Brinell hardness (HB) were examined and compared with untreated bamboo (Phyllostachys sp.) and common oak (Quercus robur L.). The density of heat-treated bamboo (ρ = 1170 kg/m3) was higher than that of untreated bamboo (ρ = 850 kg/m3) and oak wood (ρ = 670 kg/m3). The sorption isotherms were parameterized with the Guggenheim-Anderson-deBoer (GAB) model. Treated bamboo showed lower EMC than untreated bamboo and oak wood in the entire hygroscopic range. The swelling anisotropy index of treated bamboo was the lowest (1.09). The mean HB of treated bamboo (HB=132 MPa) was significantly higher than that of oak and untreated bamboo.
Ključne riječi
dynamic vapor sorption; equilibrium moisture content; sorption properties; Brinell hardness; GAB model; sorption hysteresis
Hrčak ID:
225634
URI
Datum izdavanja:
27.9.2019.
Posjeta: 1.521 *