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| 竹重组材微晶结构的X射线衍射分析 | |
| 引用本文： | 侯伦灯,张齐生,苏团,洪敏雄. 竹重组材微晶结构的X射线衍射分析[J]. 林业科技开发, 2012, 26(2): 19-22 |
| 作者姓名： | 侯伦灯 张齐生 苏团 洪敏雄 |
| 作者单位： | 1. 南京林业大学木材工业学院,南京210037;福建农林大学 2. 南京林业大学木材工业学院,南京,210037 3. 福建农林大学 4. 福建篁城科技竹业有限公司 |
| 基金项目： | 福建省科技区域重大专项资助项目(编号:闽科计2009N3016) |
| 摘 要： | 运用X射线衍射分析(XRD)的检测手段,对冷压热固化与热压法两种生产模式的竹重组材试样进行分析,结果表明竹材纤维素是以微晶结构为基础的无定型结构,仅在衍射角2θ为22.5°附近出现较突出的晶体衍射峰,在衍射角16.7°、35°附近出现对应强度较弱的晶体衍射峰。冷压热固化与热压过程中,竹材纤维素结晶区主体结构未见明显变化,但相对结晶度有不同程度下降,对竹重组材的物理力学性能有所影响。 |
| 关 键 词： | 竹重组材 微晶结构 X射线衍射 冷压法 热压法 |
X-ray diffraction analysis on microcrystalline structure of reconstituted bamboo lumber |
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| HOU Lun-deng , ZHANG Qi-sheng , SU Tuan , HONG Min-xiong. X-ray diffraction analysis on microcrystalline structure of reconstituted bamboo lumber[J]. China Forestry Science and Technology, 2012, 26(2): 19-22 | |
| Authors: | HOU Lun-deng ZHANG Qi-sheng SU Tuan HONG Min-xiong |
| Affiliation: | College of Wood Science and Technology,Nanjing Forestry University,Nanjing 210037,China |
| Abstract: | An X-ray diffraction(XRD) analysis was made on reconstituted bamboo lumber prepared by cold-pressing or hot-pressing process.The results showed that bamboo cellulose was partially amorphous with crystallites as structural basis.When the scattering angle was around 22.5°,there appeared a prominent crystalline peak.Less prominent crystalline peaks were found when the scattering angle was around 16.7° or 35°.Although the microcrystalline structure of bamboo cellulose had not undergone noticeable changes during cold-pressing or hot-pressing,the relative crystallinity decreased in various degrees,which affected physical and mechanical performances of reconstituted bamboo lumber. |
| Keywords: | reconstituted bamboo lumber microcrystalline structure X-ray diffraction cold-pressing hot-pressing |
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