| 毛竹材微纤丝角变异规律研究 |
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| 引用本文： | 李霞镇,任海青,王小青.毛竹材微纤丝角变异规律研究[J].安徽农业大学学报,2011,38(4):500-503. |
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| 作者姓名： | 李霞镇 任海青 王小青 |
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| 作者单位： | 中国林业科学研究院木材工业研究所,北京,100091;中国林业科学研究院木材工业研究所,北京,100091;中国林业科学研究院木材工业研究所,北京,100091 |
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| 摘 要： | 利用了X射线衍射技术对不同高度、不同竹龄、在垂周方向不同位置的毛竹材微纤丝角变化规律进行了研究。结果表明,在竹壁径向上,由外而内,微纤丝角大致呈先增大后减小的变化趋势,至靠近竹黄处微纤丝呈现最小值,且最大值与最小值间差异为4.17°。从基部往上,微纤丝角有略微增大,最大差异只有0.15°。毛竹材的微纤丝角从0.5年至6年呈先增大后减小的变化趋势,5个竹龄的毛竹材微纤丝角之间的差异最大值仅0.52°。最后通过方差分析表明,高度、竹龄以及垂周方向上的位置对毛竹材微纤丝角的影响显著。
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| 关 键 词： | X射线衍射 毛竹材 微纤丝角 变异规律 |
| 收稿时间： | 3/8/2011 12:00:00 AM |
Research on variation of microfibril angle in Phyllostachys pubescens |
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| LI Xia-zhen,REN Hai-qing and WANG Xiao-qing.Research on variation of microfibril angle in Phyllostachys pubescens[J].Journal of Anhui Agricultural University,2011,38(4):500-503. |
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| Authors: | LI Xia-zhen REN Hai-qing and WANG Xiao-qing |
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| Institution: | (Research Institute of Wood Industry,CAF,Beijing 100091) |
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| Abstract: | Variations of microfibril angle of Phyllostachys pubescens with different heights, ages, radial positions were studied by X-ray diffraction technique. The results showed that microfibril angle increased first, and decreased from outside to inside in radial direction of the walls, finally it reached to the minimum at the inside of the walls. The difference between the maximum and minimum values of microfibril angle was less than 4.17 °. Moreover, the microfibril angel increased slightly from base to top of the stalks. The difference was less than 0.15°. In addition, the microfibril angle increased first, then decreased from 0.5-year to 6-year, whose difference was less than 0.52°. At last, significant different effects of the microfibril angle with different ages, heights and radial positions of Phyllostachys pubescens were showed by analysis of variation. |
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| Keywords: | X-ray diffraction Phyllostachys pubescens microfibril angel variation |
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