Effects of Thermo-Vibro-Mechanic (R) Densification on the Density and Swelling of Pre-Treated Uludag Fir and Black Poplar Wood

Yükleniyor...
Küçük Resim

Tarih

2021

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

North Carolina State Univ Dept Wood & Paper Sci

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

The radial and tangential swelling as well as the fully dried density of low-density wood materials densified via the Thermo-Vibro-Mechanic (R) method were evaluated in response to applying wood stain and preservative. The samples obtained from Uludag fir (Abies bornmuelleriana Mattf.) and black poplar (Populus nigra L.) in the radial and tangential direction were pre-treated with wood stain and preservative before undergoing Thermo-Vibro-Mechanic (R) densification. Thermo-Vibro-Mechanic (R) densification was performed at three different temperatures (100 degrees C +/- 3 degrees C, 120 degrees C +/- 3 degrees C, and 140 degrees C +/- 3 degrees C), three different vibration pressures (0.60 MPa, 1.00 MPa, and 1.40 MPa), and three different vibration times (20 s, 60 s, and 100 s). Afterwards, changes in the fully dried density and swelling amounts in the radial and tangential directions of the samples were determined. The fully dried density increased by 15.4% to 38% and the radial and tangential swelling amounts increased by 73.2% to 242.6%, when the densified samples were compared to the control samples. In general, the fully dried density and swelling values increased depending on the Thermo-Vibro-Mechanic (R) densification parameters; higher values were found as the compression ratio and total application time increased.

Açıklama

Anahtar Kelimeler

Thermo-Vibro-Mechanic (R) (TVM) densification, Wood stain, Wood preservative, Density, Swelling, Pine Pinus-Sylvestris, Semi-Isostatic Densification, Mechanical-Properties, Scots Pine, Thermomechanical Densification, Dimensional Stability, Heat Posttreatment, Norway Spruce, Set-Recovery, Hardness

Kaynak

Bioresources

WoS Q DeÄŸeri

Q2

Scopus Q DeÄŸeri

Cilt

16

Sayı

1

Künye