Fourier Transform Infrared Spectroscopy (FTIR) Study of ACQ-D Treated Chinese Fir with Different Post-Treatments

Abstract:

Iinteractions of copper and wood components in the ACQ-D treated Chinese fir (Cunninghamia lanceolata Hook.) after hot water and hot air post-treatments were studied by using Fourier transform infrared spectroscopy (FTIR). Compared to Chinese fir (Cunninghamia lanceolata Hook.) without any treatments, significant reduction was noted at 1735±5 cm-1 assigned to carboxylic groups in the hemicellulose in all the samples with different post-treatments. The intensity of bands at 1655±5cm-1, 1510±5 cm-1 and 1265±5cm-1 are assigned to ketone carbonyl stretching groups, aromatic skeletal vibration and acetyl ether linkage in lignin were also decreased after different post-treatments compared to untreated Chinese fir. These results imply the fixation reactions of copper in the treated wood have been promoted by the post-treatment conditions, and the major bonding sites of copper in the treated wood are located in the wood lignin and hemicellulose.

• Periodical: Applied Mechanics and Materials (Volume 312)
• Pages: 425-428
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.312.425
• Online since: February 2013
• Authors: Li Li Yu, Xiao Jun Ma, Li Zhi Zhu
• Keywords: ACQ-D, Chinese Fir (Cunninghamia Lanceolata Hook.), Copper Conversion, Copper Leaching, Post-Treatment

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