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| 紫外光下毛竹颗粒的自由基与延迟发光 | |
| 引用本文： | 张文辉,杨文斌,张洪,陈美香,宋启军.紫外光下毛竹颗粒的自由基与延迟发光[J].林业科学,2012,48(6):100-105. |
| 作者姓名： | 张文辉 杨文斌 张洪 陈美香 宋启军 |
| 作者单位： | 1. 福建农林大学机电工程学院 福州 350002 2. 福建农林大学材料工程学院 福州 350002 3. 江南大学化学与材料工程学院 无锡 214122 |
| 基金项目： | 国家自然科学基金资助项目，福建省教育厅科学基金资助项目 |
| 摘 要： | 利用ESR电子自旋共振波谱仪和BPCL生物弱光探测仪分别测量紫外光辐照后毛竹颗粒的自由基波谱和延迟发光的光谱。经测试,毛竹自由基的光谱分裂因子g=2.0033,自由基的强度随着辐照时间按Y=1-e-αiPt规律增加;毛竹延迟发光的衰减规律通过计算机软件拟合筛选出最理想的数学公式I(t)=(A+Bt)-2,并对各动力学参数的物理意义进行深入探讨,为实现竹粉接枝共聚反应的自动控制探索了理论基础。 |
| 关 键 词： | 毛竹 自由基 延迟发光 紫外光 |
Free Radical and Delayed Luminescence of Fibre of Moso Bamboo after UV-B Irradiation |
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| Zhang Wenhui , Yang Wenbin , Zhang Hong , Chen Meixiang , Song Qijun.Free Radical and Delayed Luminescence of Fibre of Moso Bamboo after UV-B Irradiation[J].Scientia Silvae Sinicae,2012,48(6):100-105. | |
| Authors: | Zhang Wenhui Yang Wenbin Zhang Hong Chen Meixiang Song Qijun |
| Institution: | 1.College of Mechanical and Electrical Engineering,Fujian Agriculture and Forestry University Fuzhou 350002;2.College of Material Engineering,Fujian Agriculture and Forestry University Fuzhou 350002;3.College of Chemistry and Material Engineering,Southern Yangtze University Wuxi 214122) |
| Abstract: | When dry bamboo particles were irradiated with UV,free radicals produced and the phenomenon of delayed luminescence occurred.Electron spin resonance(ESR) spectrometer and BPCL biological low-light detector were used to measure the free radical spectra and the delayed luminescence spectra of the bamboo particles irradiated with UV.The findings were as follows:the spectrum split factor(g) of bamboo free radicals was 2.003 3;with the irradiation time proceeding,the intensity of the free radicals increased in accordance to the rule of Y = 1-e-αiPt;bamboo attenuation of delayed luminescence was fitted with a computer software into an ideal formula:I(t) =(A + Bt)-2.The physical significance of the kinetic parameters was explored so as to study the theoretical basis for the automatic control of bamboo powder grafting copolymerization reaction |
| Keywords: | moso bamboo free radical delayed luminescence UV-B |
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