...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymer Composites >Polymer/Carbon Nanotube Composite Film Formation: A Fluorescence Study
【24h】

Polymer/Carbon Nanotube Composite Film Formation: A Fluorescence Study

机译：聚合物/碳纳米管复合膜的形成：荧光研究

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 study, the effect of multi-walled Carbon nanotube (MWNT) on film formation behavior of Polystrene (PS) latex film was investigated by using steady state fluorescence technique. Films were prepared by mixing of pyrene (P)-labeled PS latex with different amounts of MWNTs varying in the range between 0 and 20 wt%. After drying, MWNT containing films were separately annealed above glass transition temperature (Tg) of PS ranging from 100 to 270°C for 10 min. In order to monitor film formation behavior of PS/MWNT composites, Scattered light (I_s) and fluorescence intensities (I_p) from P were measured after each annealing step to monitor the stages of film formation. At 0-20 wt% range of MWNT content films, minimum film formation (T_o), void closure (T_v), and healing, (T_h) temperatures were determined. Void closure and interdiffusion stages were modeled and related activation energies were determined. It was observed that while void closure activation energies increased, backbone activation energies decreased as the percent of MWNT is increased in the composite films.
机译：在这项研究中，采用稳态荧光技术研究了多壁碳纳米管（MWNT）对聚苯乙烯（PS）乳胶膜成膜行为的影响。通过将of（P）标记的PS胶乳与不同量的MWNT（在0至20 wt％之间变化）混合来制备薄膜。干燥后，将含MWNT的薄膜分别在PS的100至270°C的玻璃化转变温度（Tg）之上退火10分钟。为了监测PS / MWNT复合材料的成膜行为，在每个退火步骤之后测量来自P的散射光（I_s）和荧光强度（I_p），以监测成膜阶段。在MWNT含量为0-20重量％的范围内，确定最低成膜温度（T_o），空隙闭合（T_v）和愈合温度（T_h）。模拟了空隙闭合和相互扩散阶段，并确定了相关的活化能。观察到，虽然孔隙闭合活化能增加，但随着复合膜中MWNT百分比的增加，骨架活化能降低。

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