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首页> 外文期刊>RSC Advances >Novel graphitic carbon coated IF-WS2 reinforced poly(ether ether ketone) nanocomposites
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Novel graphitic carbon coated IF-WS2 reinforced poly(ether ether ketone) nanocomposites

机译：新型石墨碳涂层IF-WS2增强聚（醚醚酮）纳米复合材料

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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 degrees 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：已经制备了独特的高性能热塑性PEEK三元纳米复合材料，由纳米石墨碳涂覆的IF-WS2（无机富勒烯样钨二硫代酮）和它们的结构通过电子显微镜成像，电子分散谱元素和X射线衍射扫描表征。 IF-WS2 @ C-PEEK复合材料表现出令人印象深刻的改进它们的机械和热性能，在极限拉伸强度下增强了2wt％的极高54％，导热率下的近235％以8wt％增加。此外，它们还显示出分解温度（超过50摄氏度）的增加，具有较高的IF-WS2 @ C含量。进一步的研究揭示了曲折方法估计的激活能量，分别为LEET PEEK和IF-WS2 @ C-PEEK的61和97 kJ摩尔（-1）。这归因于增强的分散能力和PEEK基质和IF-WS2 @ C纳米粒子之间的更好的界面键合，这是通过FTIR和XPS分析研究了第一次。这些显着改善的性质将毫无疑问地扩展PEEK基纳米复合材料的应用。

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  • 来源
    《RSC Advances》 |2017年第56期|共9页
  • 作者

    Wang Nannan; Yang Zhuxian; Thummavichai Kunyapat; Xu Fang; Hu Chenxi; Chen Hongmei; Xia Yongde; Zhu Yanqiu;

  • 作者单位

    Univ Exeter Coll Engn Math &

    Phys Sci Exeter EX4 4QF Devon England;

    Univ Exeter Coll Engn Math &

    Phys Sci Exeter EX4 4QF Devon England;

    Univ Exeter Coll Engn Math &

    Phys Sci Exeter EX4 4QF Devon England;

    Univ Nottingham Fac Engn Nottingham NG7 2RD England;

    Univ Nottingham Fac Engn Nottingham NG7 2RD England;

    Jiangsu Univ Sci &

    Technol Sch Mat Sci &

    Engn 2 Mengxi Rd Zhenjiang 212003 Peoples R China;

    Univ Exeter Coll Engn Math &

    Phys Sci Exeter EX4 4QF Devon England;

    Univ Exeter Coll Engn Math &

    Phys Sci Exeter EX4 4QF Devon England;

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  • 正文语种 eng
  • 中图分类 化学;
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