| Yazarlar |
Mehmet Hakan Akyıldız
Kastamonu Üniversitesi, Türkiye |
Prof. Dr. Saim ATEŞ
Kastamonu Üniversitesi, Türkiye |
|
Hasan Özdemir
Düzce Üniversitesi, Türkiye |
| Özet |
| In this study the effect of heat treatment on air-dry density (D m), oven-dry density (D0), shrinkage (β), swelling (α), fiber saturation point (FSP), compression strength parallel to grain (σc//), bending strength (σb), modulus of elasticity (MOE) in bending, Brinell-hardness (HB), equilibrium moisture content (EMC), chemical content and cellulose crystallinity of Anatolian black pine [Pinus nigra J.F. Arnold subsp. nigra var. caramenica (Loudon) Rehder] was evaluated. Specimens were subjected to heat under atmospheric pressure at 3 different temperature (130, 180 and 230°C) and 2 different time levels (2 and 8 h). The value of Dm, D0, β, α, FSP, EMC, σc//, σb, MOE, holocellulose, 1% NaOH and alcohol solubility decreased, whereas, lignin content increased depending on the heating temperature and the time. Cellulose crystallinity of the specimens was not changed significantly. 130°C showed minimum effect, on the other hand, 230°C showed maximum effect on all properties of treated wood. Accordingly, for heat treatment process, 130°C for 2 h should be applied in place where mechanical properties are important. However, 230°C for 2 h should be used in place where a physical property is preferred. Consequently, heat treated Anatolian black pine woods could be utilized in applications for several purposes such as kitchen furniture, outdoor furniture and windows frames. © 2009 Academic Journals. |
| Anahtar Kelimeler |
| Anatolian black pine | Chemical properties | Crystallinity | FT-IR | Heat treatment | Mechanical | Physical |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | AFRICAN JOURNAL OF BIOTECHNOLOGY |
| Dergi ISSN | 1684-5315 |
| Dergi Tarandığı Indeksler | SSCI |
| Makale Dili | İngilizce |
| Basım Tarihi | 06-2009 |
| Cilt No | 8 |
| Sayı | 11 |
| Sayfalar | 2565 / 2572 |
