• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Accelerating the Graphitization Process of Polyimide by Addition of Graphene
【24h】

Accelerating the Graphitization Process of Polyimide by Addition of Graphene

机译：通过添加石墨烯来加速聚酰亚胺的石墨化过程

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 article, a composite film from polyimide and thermally exfoliated graphene was prepared through in situ polymerization, and the weight percent of thermally exfoliated graphene with respect to the polyimide monomers was 5 wt %. The film was carbonized at 1000 degrees C for 1 h and then heat-treated at various temperatures up to 2100 degrees C. For comparison, the corresponding pure polyimide film was also prepared and heat-treated at the same condition. It was found that the addition of graphene could effectively prevent the polyimide film from shrinking in the direction parallel to the film surface during the heat treatment. Furthermore, the results of density, X-ray diffraction, shrinkage in the direction perpendicular to the film surface and scanning electron microscopy revealed that the graphitization process of the polyimide could be accelerated by addition of graphene obviously. In view of the above phenomena, a reasonable explanation was presented. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41274.
机译：在本文中，通过原位聚合制备了由聚酰亚胺和热剥离的石墨烯制成的复合膜，相对于聚酰亚胺单体，热剥离的石墨烯的重量百分比为5重量％。将该膜在1000摄氏度下碳化1小时，然后在高达2100摄氏度的各种温度下进行热处理。为进行比较，还制备了相应的纯聚酰亚胺薄膜，并在相同条件下进行了热处理。发现在热处理期间，石墨烯的添加可以有效地防止聚酰亚胺膜在平行于膜表面的方向上收缩。此外，密度，X射线衍射，在垂直于膜表面的方向上的收缩和扫描电子显微镜的结果表明，通过添加石墨烯可以明显地促进聚酰亚胺的石墨化过程。针对上述现象，提出了合理的解释。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41274。

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