CHEMICAL CHARACTERIZATION AND FTIR SPECTROSCOPY OF THERMALLY COMPRESSED EUCALYPTUS WOOD PANELS

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Küçük Resim

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Univ Bio-Bio

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

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.

Açıklama

Anahtar Kelimeler

Cell wall components, chemical composition, Eucalyptus camaldulensis, thermal modification, wood composites, wood solubility

Kaynak

Maderas-Ciencia Y Tecnologia

WoS Q Değeri

Q2

Scopus Q Değeri

Q2

Cilt

20

Sayı

3

Künye