| 木粉多元醇液化残余物的结构表征 |
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| 引用本文： | 牛敏,赵广杰,M H ALMA.木粉多元醇液化残余物的结构表征[J].北京林业大学学报,2011,33(3):106-110. |
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| 作者姓名： | 牛敏 赵广杰 M H ALMA |
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| 作者单位： | 1 北京林业大学材料科学与技术学院2 Faculty of Forestry of Kahramanmaras Sutcu Imam University |
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| 基金项目： | 国家林业局林业公益性行业科研专项 |
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| 摘 要： | 为了探究木粉多元醇液化过程中缩聚反应阶段液化残余物的化学基团、结晶度以及微观形态的变化,进而探明缩聚反应机理,以聚乙二醇和丙三醇为液化剂、H2SO4为催化剂,对桦木木粉液化,并用FTIR、XRD和SEM对液化残余物进行分析.结果表明:1)在O～180 min液化时间内,缩聚反应约发生在70 min以后.2)与木粉相比,...
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| 关 键 词： | 化学基团 结晶度 微观形态 液化残余物 |
| 收稿时间： | 1900-01-01 |
Structural characterization of the powder with polyhydric alcohols |
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| NIU Min,ZHAO Guang-jie,M H ALMA.Structural characterization of the powder with polyhydric alcohols[J].Journal of Beijing Forestry University,2011,33(3):106-110. |
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| Authors: | NIU Min ZHAO Guang-jie M H ALMA |
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| Institution: | 1 College of Materials Science and Technology, Beijing Forestry University, 100083, P. R. China; 2 Faculty of Forestry, Kahramanmaras Sutcu Imam University, Kahramanmaras, 46100, Turkey. |
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| Abstract: | In this study,Betula dahurica wood powder was liquefied with polyethylene glycol and glycerin as the liquefying reagents and sulfuric acid as a catalyst to investigate chemical groups,crystallinity and microcosmic morphological characteristics of liquefied wood residues by FTIR,XRD and SEM,and the mechanism of condensation reaction was verified.The results showed: 1) the condensation reaction occurred after about 70 min within liquefying time of 180 min.2) Comparing to wood powder,the absorption characteris... |
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| Keywords: | chemical groups crystallinity microcosmic morphology liquefied wood residues |
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