The Effect of Heat Treatment on Some Mechanical Properties and Color Changes of Uludag Fir Wood

被引：28

作者：

Gunduz, Gokhan ^{[1
]}

Aydemir, Deniz ^{[1
]}

Korkut, Suleyman ^{[2
]}

机构：

[1] Bartin Univ, Fac Forestry, Dept Forest Ind Engn, TR-74100 Bartin, Turkey

[2] Duzce Univ, Fac Forestry, Dept Forest Ind Engn, Duzce, Turkey

来源：

DRYING TECHNOLOGY | 2010年 / 28卷 / 02期

关键词：

Color changes; Hardness; Heat treatment; Mass loss; Uludag fir; HIGH-TEMPERATURE; SPRUCE;

D O I：

10.1080/07373930903530162

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, the effects of heat treatment on color, mass loss, compression strength, and hardness of Uludag fir (Abies bornmulleriana Mattf.) were investigated. Wood specimens conditioned at a relative humidity of 65% and a temperature of 20 degrees C were subjected to heat treatment at 170, 190, and 210 degrees C for 4, 8, and 12h. After heat treatment, compression strength and hardness were determined according to TS 2595 and TS 2479. Color changes were determined according to DIN5033. The results showed that compression strength and hardness of Uludag fir wood decreased to varying extents in relation to intensity of treatment, whereas mass loss increased. We determined that treatment temperature had a more significant effect on color changes than did treatment time. The color of the wood became darker at the higher treatment temperatures.

引用

页码：249 / 255

页数：7

共 29 条

[1]

[Anonymous], 1975, 3129 ISO

[2]

*ASTM, 2007, ASTMD239507

[3] Effect of high temperature on the change in color, dimensional stability and mechanical properties of spruce wood [J].

Bekhta, P ;

Niemz, P .

HOLZFORSCHUNG, 2003, 57 (05) :539-546

[4]

BOONSTRA MJ, 1998, IRGWP9840123

[5] THERMAL-TREATMENT OF WOOD - ANALYSIS OF THE OBTAINED PRODUCT [J].

BOURGOIS, J ;

BARTHOLIN, MC ;

GUYONNET, R .

WOOD SCIENCE AND TECHNOLOGY, 1989, 23 (04) :303-310

[6]

BOZKURT YA, 1992, FOREST FACULTY PUBLI, V415

[7] CHARACTERIZATION OF EUROPEAN OAKWOOD CONSTITUENTS ACTING IN THE BROWN DISCOLORATION DURING KILN DRYING [J].

CHARRIER, B ;

HALUK, JP ;

METCHE, M .

HOLZFORSCHUNG, 1995, 49 (02) :168-172

[8] ON CHANGES OF WOOD AND ITS COMPONENTS WITHIN TEMPERATURE RANGE TO 200 DEGREES C .3. THERMALLY AND MECHANICALLY CAUSED STRUCTURAL CHANGES IN SPRUCEWOOD [J].

FENGEL, D .

HOLZ ALS ROH-UND WERKSTOFF, 1966, 24 (11) :529-&

[9]

Fengel D., 1984, Wood: chemistry, ultrastructure, reactions.

[10]

*GERM STAND I, 1979, DIN5033 GERM STAND I

← 1 2 3 →