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首页> 外文期刊>RSC Advances >Improvement of the resistance performance of carbon/cyanate ester composites during vacuum electron radiation by reduced graphene oxide modified TiO2
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Improvement of the resistance performance of carbon/cyanate ester composites during vacuum electron radiation by reduced graphene oxide modified TiO2

机译：通过还原石墨烯氧化物改性TiO2改善真空电子辐射期间碳/氰酸酯复合材料的电阻性能

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摘要

Electron irradiation in outer space causes severe damage to the polymer materials of spacecrafts. An effective approach to prevent such damage is to incorporate nanoparticles into the polymeric materials. Herein, we fabricated modified cyanate ester (CE) and carbon/CE composites by the incorporation of reduced graphene oxide-TiO2(rGO-TiO2) nanoparticles and studied their resistance performance to electronic radiation. Compared with the carbon/TiO2/CE composite, the interlayer shear strength of the resulting carbon/rGO-TiO2/CE composite increased by 10.4% and its mass loss reduced by 16.5%. Scanning electron microcopy (SEM) images showed that there are more cracks at the fiber and resin interfaces of carbon/CE than at the interfaces of carbon/rGO-TiO2/CE after irradiation. X-ray photoelectron spectroscopy (XPS) investigation showed that irradiation with 160 keV electrons could break the chemical bonds at the surface layer of the pristine CE resin, which is effectively prevented by the incorporation of rGO-TiO2 nanoparticles.
机译：外层空间的电子照射对宇宙飞船的聚合物材料造成严重损害。防止这种损伤的有效方法是将纳米颗粒掺入聚合物材料中。这里，我们通过掺入还原的石墨烯-TiO2（RGo-TiO 2）纳米颗粒并研究其对电子辐射的电阻性能来制造改性的氰酸酯（Ce）和碳/ Ce复合材料。与碳/ TiO2 / Ce复合材料相比，所得碳/ rgo-TiO2 / Ce复合材料的层间剪切强度增加了10.4％，其质量损失降低了16.5％。扫描电子显微镜（SEM）图像显示纤维和碳/ Ce的树脂界面存在更多的裂缝，而不是在辐射后的碳/ Rgo-TiO2 / Ce的界面。 X射线光电子能谱（XPS）研究表明，具有160keV电子的照射可以在原始Ce树脂的表面层中破坏化学键，通过掺入Rgo-TiO2纳米颗粒有效地防止。

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  • 来源
    《RSC Advances》 |2015年第94期|共9页
  • 作者

    Peng Dequn; Qin Wei; Wu Xiaohong; Wu Jinzhu; Pan Yangyang;

  • 作者单位

    Dept Chem Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Sch Mat Sci &

    Engn Harbin 150001 Heilongjiang Peoples R China;

    Dept Chem Harbin 150001 Heilongjiang Peoples R China;

    Dept Chem Harbin 150001 Heilongjiang Peoples R China;

    Shanghai Inst Spacecraft Equipment Shanghai 200240 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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