| 利用X-射线衍射法测定竹材纤维素结晶度 |
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| 引用本文： | 杨淑敏,江泽慧,任海青,费本华.利用X-射线衍射法测定竹材纤维素结晶度[J].东北林业大学学报,2010,38(8). |
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| 作者姓名： | 杨淑敏 江泽慧 任海青 费本华 |
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| 作者单位： | 中国林业科学研究院,北京,100091;中国林业科学研究院,北京,100091;中国林业科学研究院,北京,100091;中国林业科学研究院,北京,100091 |
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| 基金项目： | "十一五"国家科技支撑计划项目 |
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| 摘 要： | 应用X-射线衍射法对毛竹发育过程中的纤维素结晶度,以及不同造林方式和不同竹种的纤维素结晶度测定分析,结果表明:毛竹材成熟过程中,随竹龄增加纤维素结晶度的变化没有呈现明显的规律性,介于51%～54%之间。纤维素结晶度的比例是从竹青到竹黄逐渐降低,在竹干高度上的变化规律与竹龄有关。竹龄、竹干高度和竹壁径向位置对纤维素结晶度的影响差异不显著。对比两种造林方式的纤维素的结晶度,各个竹龄竹鞭侧芽育苗的纤维素结晶度均小于实生苗的相应值。6种竹材纤维素结晶度以孝顺竹的最大,毛竹的最小,介于43%～52%之间。
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| 关 键 词： | 竹材 纤维素结晶度 X-射线衍射法 |
Determination of Cellulose Crystallinity of Bamboo Culms with X-ray Diffraction Spectrum |
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| Yang Shumin,Jiang Zehui,Ren Haiqing,Fei Benhua.Determination of Cellulose Crystallinity of Bamboo Culms with X-ray Diffraction Spectrum[J].Journal of Northeast Forestry University,2010,38(8). |
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| Authors: | Yang Shumin Jiang Zehui Ren Haiqing Fei Benhua |
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| Institution: | Yang Shumin,Jiang Zehui,Ren Haiqing,Fei Benhua(Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,P.R.China) |
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| Abstract: | The cellulose crystallinity in developing culms of moso bamboo (Phyllostachys pubescens f.lutea Wen),and in culms of different species or by different reforestation methods was analysed by X-ray diffraction estimation.Result shows that the variation in cellulose crystallinity with age for the developing moso bamboo is irregular,ranging from 51 percent to 54 percent.The longitudinal variation in crystallinity is related to the age,and the cellulose crystallinity decreased from the outer to the inner parts of... |
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| Keywords: | Moso bamboo Cellulose crystallinity X-ray diffraction spectrum |
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