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Properties of Acetylated Wood Prepared at Low Temperature in the Presence of Catalysts
Authors:Jian-Zhang Li  Takeshi Furuno  Wen-Rui Zhou  Qian Ren  Xiu-Zhi Han  Jin-Ping Zhao
Affiliation:1. College of Material Science and Technology , Beijing Forestry University , Beijing, China;2. Faculty of Science and Engineering , Shimane University , Matsue, Shimane, Japan;3. Beijing New Building Material Group Companies , Beijing, China
Abstract:Abstract

In the presence of catalysts such as sodium acetate, zinc chloride, magnesium perchlorate, and magnesium chloride hexahydrate, acetylation of wood at 75°C was investigated. The results showed that it was possible to endow wood with high dimensional stability at low temperature by a catalyzed acetylation method. In particular, the magnesium chloride–catalyzed acetylation of wood showed very little or no effect on the color change or mechanical property of wood, as contrasted to those of the zinc chloride or magnesium perchlorate–catalyzed treatment, which showed a great effect. In addition, the concentrations of catalysts proved to have an effect on weight percent gain.
Keywords:Catalyst  color change  mechanical property  wood acetylation
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