Citation: Ming-Yu Li, Shi-Chao Cheng, Dan Li, Shen-Nan Wang, An-Min Huang, Su-Qin Sun. Structural characterization of steam-heat treated Tectona grandis wood analyzed by FT-IR and 2D-IR correlation spectroscopy[J]. Chinese Chemical Letters, ;2015, 26(2): 221-225. doi: 10.1016/j.cclet.2014.11.024 shu

Structural characterization of steam-heat treated Tectona grandis wood analyzed by FT-IR and 2D-IR correlation spectroscopy

Ming-Yu Li ^a ,
Shi-Chao Cheng ^a,b ,
Dan Li ^a,b ,
Shen-Nan Wang ^a ,
An-Min Huang ^a,,, ,
Su-Qin Sun ^c

1.
a Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China;
2.
b Department of Wood Science and Technology, Beijing Forestry University, Beijing 100083, China;
3.
c Department of Chemistry, Tsinghua University, Beijing 100084, China

Corresponding author: An-Min Huang,
Received Date: 3 September 2014
Available Online: 13 November 2014
Fund Project: This work was sponsored by the National Natural Science Foundation of China (No. 31270591) (No. 31270591)

The properties of wood can be improved through steam-heat treatment. There are many studies about mechanical properties of steam-heat treated wood, but very few studies are on the aspects of chemical modifications. In this study, FT-IR spectra combined with SD-IR spectra, correlation coefficients and 2DIR spectra are employed to analyze the chemicalmodifications of teak (Tectona grandis L.F.) wood during steam-heat treatment under treatment temperatures from 120℃ to 220℃ at intervals of 20℃. Acetic acid, which is produced during steam-heat treatment, acts as a catalyst of condensation and degradation reactions of wood components. The changes of wood components are more and more intense with increasing the treatment temperature. The sensitivity of wood samples to thermal perturbation rises initially with increasing treatment temperature before falling back. The steam-heat treated wood under 180℃ is the most sensitive.
- Teak wood,
- Steam-heat treatment,
- FT-IR spectroscopy,
- The correlation coefficients,
- 2D-IR spectroscopy
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