| 马尾松表面自由基及其纤维结晶度 |
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| 引用本文： | 许洪林.马尾松表面自由基及其纤维结晶度[J].福建林学院学报,1988(4). |
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| 作者姓名： | 许洪林 |
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| 作者单位： | 福建林学院科研处 |
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| 摘 要： | 木材在机械力或辐射作用下,由于高聚物分子共价健的断裂而产生自由基。本文用电子自旋共振波谱观察木材在机械力作用下和受r射线辐射下所产生的自由基,并就其自由基的类别和稳定性进行分析。同时用x衍射法测得马尾松纤维的相对结晶度为61.2％,并发现r辐射对马尾松相对结晶度无明显影响,这说明辐射不会改变马尾松的主要材性。
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| 关 键 词： | 表面自由基 纤维结晶度 马尾松 r辐射 χ衍射 材性 |
FREE RADICALS OCCURRING ON WOOD SURFACES OF PINUS MASSONIANA AND THE RELATIVE CRYSTALLINITY OF THE WOOD CELLULOSE |
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| Xu Honglin.FREE RADICALS OCCURRING ON WOOD SURFACES OF PINUS MASSONIANA AND THE RELATIVE CRYSTALLINITY OF THE WOOD CELLULOSE[J].Journal of Fujian College of Forestry,1988(4). |
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| Authors: | Xu Honglin |
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| Institution: | Department of Scientific Research |
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| Abstract: | It has been known that the mechanical preperation of wood surfaces or exposing them to r-radiation will induce free radical formation due to moleculur fracture of their chemical components. The present paper deals with some results of ESR investigation of free radical formation. Attempts are made for the identification of these free radicals and thier stability.
The degree of relative crystallinity of the wood cellulose in the stem of Pinus Massoniana Lamb. Determined by means of x-ray diffraction and infrared spectra, was found to be 61.20%. When irradiated by r-ray, no obvious changes have been found in both relative cryallinity and character of wood. |
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| Keywords: | free radical on wood surfaces relative cryallinity of wood cellulose Pinus massoniana r-radiation x-ray diffraction character of wood |
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