XRD Characterization of Phenol Liquefied Chinese Fir Residues

Zhigao LIU, Qiuhui ZHANG, Fang DING

Abstract


The amount of wood residue is used as a measurement of the extent of wood liquefaction. Characterization of the residue from wood liquefaction provides a new approach to understand some fundamental aspects of the liquefaction reaction. This paper adopts X-ray diffraction to characterize the changes of groups and mechanism of reaction of the residue crystallinity in the liquefaction process of Chinese Fir. The XRD analysis of liquefaction residue showed that amorphous region is firstly damaged so that the crystallinity could be in the trend of increasing in the liquefaction process of Chinese fir in most cases with the time’s prolonging. However, cellulose crystalline region begins to be destroyed under the higher liquefied temperature (170℃)or in the case of higher P/W (w/w) ratio (5), leading to the relative decreased trend of crystallinity.
Key words: Chinese Fir; XRD; Liquefaction; Residue

Keywords


Chinese Fir; XRD; Liquefaction; Residue

References


Fengwen Sun, Xiaoke Li (2007). Technologies of liquefaction of bamboo and preparation of adhesive. Chemistry and Industry of Forest Products, 27(6), 65-70.

Qiuhui Zhang, Guangjie Zhao & Jinpeng Chen (2004). Effect of the acid catalysts on liquefaction of wood in phenol. Journal of Beijing Forestry University, 26(5), 66-70.

Qiuhui Zhang, Guangjie Zhao (2003). Liquefaction of wood and the application of liquefied wood. International Wood Industry, 8,14-17.

Qiuhui Zhang (2005). Liquefaction of wood in phenol and the resinification of the phenolated wood. Beijing Forestry University Phd Thesis.




DOI: http://dx.doi.org/10.3968%2Fj.ans.1715787020110401.007

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