CHEMICAL CHARACTERIZATION AND FTIR SPECTROSCOPY OF THERMALLY COMPRESSED EUCALYPTUS WOOD PANELS

被引：45
作者：
Gonultas, Oktay [1 ]
Candan, Zeki [2 ]
机构：
[1] Bursa Tech Univ, Fac Forestry, Forest Ind Engn, Bursa, Turkey
[2] Istanbul Univ, Fac Forestry, Forest Ind Engn, Istanbul, Turkey
来源：
MADERAS-CIENCIA Y TECNOLOGIA | 2018年 / 20卷 / 03期
关键词：
Cell wall components; chemical composition; Eucalyptus camaldulensis; thermal modification; wood composites; wood solubility; GRANDIS JUVENILE WOOD; MECHANICAL-PROPERTIES; CRYSTALLINE-STRUCTURE; PAULOWNIA WOOD; HEAT-TREATMENT; PINE; PRESSURE; SPRUCE; FIR; WETTABILITY;
D O I：
10.4067/S0718-221X2018005031301
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
In this study, the change in the chemical properties of the thermally modified eucalyptus (Eucalyptus camaldulensis) wood boards were examined by wet chemical analysis and FTIR spectroscopy. The eucalyptus wood boards were modified with a laboratory type hot-press for four different groups at press pressures of 2 or 4 MPa and temperatures of 150 degrees C or 180 degrees C and compared to untreated control. After this, hot water, 1% NaOH, ethanol-cyclohexane, ethanol, and methanol-water solubility values were determined for the treated samples. In addition, the content of klason lignin, acid soluble lignin, holocellulose, and alpha-cellulose were investigated. The solubility values (except for the ethanol solubility) increased in the modified wood when compared to the untreated control. A decrease in the content of acid soluble lignin, holocellulose and alpha-cellulose was observed while the content of klason lignin in the modified wood was increased. According to the FTIR analysis results, significant changes were observed in the spectra of the modified samples. These findings were in agreement with the results of wet chemical analysis.
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页码：431 / 442
页数：12
相关论文
共 56 条
[1]   Crystalline structure of heat-treated Scots pine [Pinus sylvestris L.] and Uludag fir [Abies nordmanniana (Stev.) subsp bornmuelleriana (Mattf.)] wood [J].
Akgul, Mehmet ;
Gumuskaya, Esat ;
Korkut, Suleyman .
WOOD SCIENCE AND TECHNOLOGY, 2007, 41 (03) :281-289
[2]   Thermochemical behavior of Norway spruce (Picea abies) at 180-225 °C [J].
Alén, R ;
Kotilainen, R ;
Zaman, A .
WOOD SCIENCE AND TECHNOLOGY, 2002, 36 (02) :163-171
[3]  
[Anonymous], 1964, WOOD CELLULOSE SCI
[4]  
[Anonymous], 1984, WOOD CHEM ULTRASTRUC, DOI DOI 10.1515/9783110839654
[5]  
Ates S, 2009, BIORESOURCES, V4, P1032
[6]  
Atik C, 2013, CIENC FLOREST, V23, P475, DOI 10.5902/198050989291
[7]   Extractives and structural components in wood and bark of endemic oak Quercus vulcanica Boiss [J].
Balaban, M ;
Uçar, G .
HOLZFORSCHUNG, 2001, 55 (05) :478-486
[8]   EFFECT OF THE BRAZILIAN THERMAL MODIFICATION PROCESS ON THE CHEMICAL COMPOSITION OF Eucalyptus grandis JUVENILE WOOD - PART 2: SOLUBILITY AND ASH CONTENTS [J].
Batista, Djeison Cesar ;
Bolzon de Muniz, Graciela Ines ;
da Silva Oliveira, Jose Tarcisio ;
Paes, Juarez Benigno ;
Nisgoski, Silvana .
MADERAS-CIENCIA Y TECNOLOGIA, 2016, 18 (02) :285-292
[9]   EFFECT OF THE BRAZILIAN THERMAL MODIFICATION PROCESS ON THE CHEMICAL COMPOSITION OF Eucalyptus grandis JUVENILE WOOD - PART 1: CELL WALL POLYMERS AND EXTRACTIVES CONTENTS [J].
Batista, Djeison Cesar ;
Bolzon de Muniz, Graciela Ines ;
da Silva Oliveira, Jose Tarcisio ;
Paes, Juarez Benigno ;
Nisgoski, Silvana .
MADERAS-CIENCIA Y TECNOLOGIA, 2016, 18 (02) :273-284
[10]  
Boonstra MJ, 2006, HOLZ ROH WERKST, V64, P204, DOI 10.1007/s00107-005-0078-4
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