...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Electron induced modifications in the optical properties of polypropylene
【24h】

Electron induced modifications in the optical properties of polypropylene

机译：电子诱导的聚丙烯光学性能的改性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, the effect of electron beam (EB) irradiation on polypropylene (PP) films has been studied via different techniques, namely: x-ray diffraction and UV-Vis absorption spectroscopy. The PP films were irradiated with a 1.5 MeV electron beam at doses of 5, 10, 20, 50, 70, 100 and 120 kGy. The crystallinity of the PP films was found to increase, slightly, by EB irradiation. The changes in the dipole strength, transition dipole moment, oscillator strength, optical band energy gap and activation energy have been investigated as a function of the irradiation dose. The results exhibited an increase in both the dipole moment and the oscillator strength; meanwhile, a decrease was found in both the energy gap and the activation energy with increasing dose. The obtained results explored a linear relation plotted between each of the dipole moment, the oscillator strength and the activation energy and the irradiation dose that showed good correlation coefficients. The results suggest the possible use of this polymer as a dosimeter for electron beams in the dose range of interest (0-120 kGy) by means of UV-Vis spectrophotometry.
机译：在这项工作中，已经通过不同的技术研究了电子束（EB）辐照对聚丙烯（PP）薄膜的影响，即：X射线衍射和UV-Vis吸收光谱。用1.5MeV电子束以5、10、20、50、70、100和120kGy的剂量辐照PP膜。发现通过EB辐射，PP膜的结晶度略有增加。研究了偶极强度，跃迁偶极矩，振荡器强度，光带能隙和活化能随辐照剂量的变化。结果表明偶极矩和振子强度都增加了。同时，随着剂量的增加，能隙和活化能均减小。获得的结果探究了偶极矩，振子强度与活化能以及辐照剂量之间的线性关系，该线性关系显示出良好的相关系数。结果表明可以通过紫外可见分光光度法将该聚合物用作目标剂量范围（0-120 kGy）中电子束的剂量计。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号