• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Novel graphitic carbon coated IF-WS2 reinforced poly(ether ether ketone) nanocomposites
【24h】

Novel graphitic carbon coated IF-WS2 reinforced poly(ether ether ketone) nanocomposites

机译：新型石墨碳包覆的IF-WS 2 增强聚醚醚酮纳米复合材料

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

摘要

Unique high performance thermoplastic PEEK ternary nanocomposites reinforced by nano graphitic carbon coated IF-WS2 (inorganic fullerene-like tungsten disulphide) have been prepared and their structures have been characterised by electron microscopy imaging, electron dispersive spectrum elemental and X-ray diffraction scanning. The IF-WS2@C–PEEK composites exhibit impressive improvements in both their mechanical and thermal properties, with an extraordinary 54% enhancement in the ultimate tensile strength at 2 wt% and a nearly 235% increase in thermal conductivity at 8 wt%. In addition, they also show an increase in decomposition temperature (over 50 °C) with higher IF-WS2@C contents. Further investigation reveals the activation energies estimated by the Kissinger method to be 61 and 97 kJ mol?1 for neat PEEK and IF-WS2@C–PEEK, respectively. This is ascribed to the enhanced dispersion ability and better interface bonding between the PEEK matrix and IF-WS2@C nanoparticles, which for the first time has been investigated by FTIR and XPS analysis. These significantly improved properties will no doubt expand the applications of the PEEK-based nanocomposites.
机译：制备了纳米石墨碳包覆的IF-WS 2 （无机富勒烯样二硫化钨）增强的独特高性能热塑性PEEK三元纳米复合材料，并通过电子表征了其结构。显微镜成像，电子色散元素和X射线衍射扫描。 IF-WS 2 @ C–PEEK复合材料在机械性能和热性能方面均表现出惊人的改进，在2 wt％的极限抗拉强度方面提高了54％在8 wt％时，导热系数提高了近235％。另外，IF-WS 2 @C含量越高，它们的分解温度也会升高（超过50°C）。进一步的研究表明，基辛格方法估计的纯净PEEK和IF-WS 2 的活化能分别为61和97 kJ mol ？1 。 sub> @ C–PEEK。这归因于PEEK基质与IF-WS 2 @C纳米粒子之间增强的分散能力和更好的界面键合，这是FTIR和FTIR首次研究的。 XPS分析。这些显着改善的性能无疑将扩大基于PEEK的纳米复合材料的应用。

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