首页> 美国卫生研究院文献>Royal Society Open Science >Microbeam two-dimensional small-angle X-ray scattering investigating the effects of reduced graphene oxide on local microstructures of high-density polyethylene/reduced graphene oxide nanocomposite bars
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Microbeam two-dimensional small-angle X-ray scattering investigating the effects of reduced graphene oxide on local microstructures of high-density polyethylene/reduced graphene oxide nanocomposite bars

机译:微束二维小角X射线散射研究氧化石墨烯对高密度聚乙烯/氧化石墨烯纳米复合棒局部微观结构的影响

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摘要

It has been reported that the introduction of reduced graphene oxide (RGO) can enhance the crystallization and orientation of high-density polyethylene (HDPE) matrix and thus improve the mechanical properties of HDPE/RGO nanocomposites. In this study, the local microstructures and orientations in different regions of HDPE/RGO bars with varied RGO contents were further explored by two-dimensional small-angle X-ray scattering using a microbeam technique. It is unveiled that the orientation orderings of each position is intensified with increasing RGO amount, and of particular interest is the observation of the slight change of the ordering degrees in diverse zones of HDPE/RGO nanocomposite bars, indicating that RGO imposes a uniform enhancing effect upon HDPE matrix within different areas and consequently induces an effective increase of the mechanical properties of HDPE/RGO nanocomposites.
机译:据报道,引入还原氧化石墨烯(RGO)可以增强高密度聚乙烯(HDPE)基体的结晶和取向,从而改善HDPE / RGO纳米复合材料的机械性能。在这项研究中,使用微束技术通过二维小角X射线散射进一步探索了具有不同RGO含量的HDPE / RGO棒不同区域的局部微观结构和取向。揭示了随着RGO数量的增加,每个位置的取向顺序会增强,特别有趣的是观察到HDPE / RGO纳米复合棒的不同区域中的顺序度有细微变化,这表明RGO施加了均匀的增强作用HDPE / RGO纳米复合材料在不同区域内的高密度聚乙烯基体上具有良好的抗腐蚀性能,因此有效地提高了HDPE / RGO纳米复合材料的力学性能。

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