• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Digest Journal of Nanomaterials and Biostructures >ELECTRICAL, M ECHANICAL AND T HERMAL PROPERTIES OFSEMICONDUCTIVE SHIELD MATERIALS PREPARED WITH GRAPHENENANO SHEETS
【24h】

ELECTRICAL, M ECHANICAL AND T HERMAL PROPERTIES OFSEMICONDUCTIVE SHIELD MATERIALS PREPARED WITH GRAPHENENANO SHEETS

机译：用石墨烯制成的半导电屏蔽材料的电，机械和热性能

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, graphene nanosheets (GNS) was synthesized with an improved Hummers’ method and the prepared sample was characterized using X-ray diffraction (XRD) and transmission electron microscope (TEM). The current research was mainly focused on the preparation a new-type semiconductive shielding material used in crosslinked polyethylene (XLPE) cable, by adding the GNS and conductive carbon black (CB) into ethylene/vinyl acetate copolymer (EVA). The results showed that the electrical and thermal properties of the composite EVA/CB-GNS was dramatically improved at low GNS loading. GNS reduce the content of conductive filler and improve the smoothness of semiconductive shielding layer of power cable. Meantime, the CB improved the dispersability of GNS in EVA. The volume resistivity of EVA/CB-GNS was decreased to 32.6 Ω·cm, only by adding 1.5wt% GNS and 18wt% CB. The tensile strength and elongation at break of EVA/18CB-1.5GNS was 12.1Mpa and 238.6% respectively, which met the requirements of National Machinery Industrial Standard of China JB/T 10738-2007.
机译：本文采用改进的Hummers方法合成了石墨烯纳米片（GNS），并使用X射线衍射（XRD）和透射电子显微镜（TEM）对制备的样品进行了表征。当前的研究主要集中在通过将GNS和导电炭黑（CB）添加到乙烯/醋酸乙烯酯共聚物（EVA）中来制备用于交联聚乙烯（XLPE）电缆的新型半导电屏蔽材料。结果表明，在低GNS负载下，EVA / CB-GNS复合材料的电气和热性能得到了显着改善。 GNS减少了导电填料的含量，提高了电力电缆的半导电屏蔽层的光滑度。同时，CB改善了GNS在EVA中的分散性。仅通过添加1.5wt％的GNS和18wt％的CB，EVA / CB-GNS的体积电阻率降低到32.6Ω·cm。 EVA / 18CB-1.5GNS的拉伸强度和断裂伸长率分别为12.1Mpa和238.6％，符合中国机械工业标准JB / T 10738-2007的要求。

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