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Expanded graphene oxide fibers with high strength and increased elongation

机译：扩增石墨烯氧化物纤维，具有高强度和增加的伸长率

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摘要

We report the role of chemically expanded graphite in the fabrication of high-performance graphene oxide fibers by wet spinning. X-ray diffraction peak showed that the interplanar distance of the expanded graphene oxide (EGO) fiber was more than that of graphene oxide (GO) fiber due to the expanded graphite. X-ray photon spectroscopy analysis revealed that EGO was more oxidized than GO. The hydrogen bonding network and secondary intermolecular interaction made the EGO aqueous solution more stable and crystalline, and it was able to be stretched in the coagulation bath. Morphological analysis showed the excellent alignment and compactness of EGO sheets in the fibers. The increased interplanar distance between the EGO sheets favored the edge-to-edge interaction more than the basal plane interaction within the fiber, thus resulting in high mechanical strength (492 MPa) and increased elongation (6.1%).
机译：通过湿纺，我们报道了化学膨胀石墨在高性能石墨烯氧化物纤维的制造中的作用。 X射线衍射峰表明，由于膨胀石墨，膨胀的石墨烯氧化物（EGO）纤维的平面距离大于石墨烯氧化物（GO）纤维的横向距离。 X射线光子光谱分析显示，自我比去更氧化。 氢键网络和二次分子间相互作用使自我水溶液更稳定，结晶，并且能够在凝固浴中拉伸。 形态学分析显示了纤维中的自我片材的出色对准和紧凑性。 EGO片材之间的平面距离增加了边缘到边缘相互作用，比纤维内的基底平面相互作用大，因此导致高机械强度（492MPa）和增加的伸长率（6.1％）。

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  • 来源
    《RSC Advances》 |2019年第8期|共5页
  • 作者

    Ugale Ashok D.; Chi LinLin; Kim Min-Kyu; Chae Sudong; Choi Jae-Young; Yoo Ji-Beom;

  • 作者单位

    Sungkyunkwan Univ Sungkyunkwan Adv Inst Nanotechnol SAINT Suwon 440746 South Korea;

    Sungkyunkwan Univ Adv Mat Sci &

    Engn Suwon 440746 South Korea;

    Sungkyunkwan Univ Sungkyunkwan Adv Inst Nanotechnol SAINT Suwon 440746 South Korea;

    Sungkyunkwan Univ Adv Mat Sci &

    Engn Suwon 440746 South Korea;

    Sungkyunkwan Univ Adv Mat Sci &

    Engn Suwon 440746 South Korea;

    Sungkyunkwan Univ Sungkyunkwan Adv Inst Nanotechnol SAINT Suwon 440746 South Korea;

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  • 正文语种 eng
  • 中图分类 化学;
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