• 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 >Polyethylene/grafted polyethylene/graphite nanocomposites: Preparation, structure, and electrical properties
【24h】

Polyethylene/grafted polyethylene/graphite nanocomposites: Preparation, structure, and electrical properties

机译：聚乙烯/接枝聚乙烯/石墨纳米复合材料：制备，结构和电性能

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

Polyethylene (PE)maleic anhydride grafted PE (g-PE)/expanded graphite (EG) electrically conductive nanocomposites were successfully prepared by solution intercalation (SI) and masterbatch melt mixing (MMM). Electrical conductivity (σ) measurements; transmission electron, scanning electron, and optical miscroscopy observations; and differertial scanning calorimetry analyses were employed to examine the influences of the preparation methods, EG volume or weight fractions (φ or f(w)), and g-PE weight contents (C-g) on the structure and σ of the nanocomoposites, as compared to PE/g-PE/EG composites and PE/EG control produced by direct melt mixing (DMM). The percolation thresholds (φ(c)) of the SI, MMM, and DMM composites (C-g/f(w) = 1.5) and the DMM control were measured and found to be 2.19, 3.81, 4.68, and 5.35%, respectively. As the C-g/f(w) increases from 1 to 4, the σ of the MMM and DMM composites with f(w) = 9% rises from the order of 10(-16) to 10(-4) and 10(-8) S/cm, respectively. These were closely associated with the morphology and microstructure of the composites varying with the preparation methods (φ and C-g/f(w)) and could also be interpreted in terms of percolation theory. © 2005 Wiley Periodicals, Inc.
机译：通过溶液插层（SI）和母料熔融混合（MMM）成功制备了聚乙烯（PE）马来酸酐接枝的PE（g-PE）/膨胀石墨（EG）导电纳米复合材料。电导率（σ）测量;透射电子，扫描电子和光学显微镜观察;并用差示扫描量热法分析了制备方法，EG体积或重量分数（φ或f（w））和g-PE重量含量（Cg）对纳米复合材料结构和σ的影响。 PE / g-PE / EG复合材料，以及通过直接熔融混合（DMM）生产的PE / EG控制。测量了SI，MMM和DMM复合材料（C-g / f（w）= 1.5）和DMM对照的渗滤阈值（φ（c）），分别为2.19、3.81、4.68和5.35％。随着Cg / f（w）从1增加到4，f（w）= 9％的MMM和DMM复合材料的σ从10（-16）到10（-4）和10（- 8）S / cm。这些与复合物的形貌和微观结构密切相关，该复合物的形貌和微观结构随制备方法（φ和C-g / f（w））的变化而变化，也可以用渗流理论来解释。 ＆复制; 2005 Wiley期刊公司

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